None
List of Proper Motions used in Ledgers — continued. Groom- bridge No. P.M. in R.A. P.M. in N.P.D. Groom- bridge No. P.M. in R.A. P.M. in N.P.D. Groom- bridge No. P.M. in R.A. P.M. in N.P.D. 8 // 3 s 3268 + 0-0183 O'OOO 3569 — O'OOO2 + 0-007 39°7 + 0-0088 — 0-007 3277 + 0-0257 — O'2O8 3572 -0-0135 + 0-056 3928 + 0-0055 -0-043 3281 — O-0112 + 0-217 3606 + 0-0029 — 0-012 3954 + 0-0007 + 0-010 3286 + O-0127 — 0-819 363> + O-0085 — O-OO4 3989 + 0-0139 — 0-123 3308 -0-0434 — O'OOI 3665 — 0-0144 + 0-176 4002 + 0-0038 3338 O'OOOO + 0-018 36/8 + 0-0280 — 0-061 3362 + 0-0093 — 0-091 3362 + 0-0009 + 0-009 3685 + 0-0021 -0-045 4038 + 0-0093 — 0-018 337° + 0-0141 — 0-008 3706 — 0-0016 4059 + 0-0010 3373 — 0-0105 + 0-015 3716 + 0-0126 + 0-021 4078 + 0-0072 — 0-021 3385 + 0-0006 — 0-008 3718 + 0-002 + 0-0017 4093 — 0-0016 + 0-0013 3794 + 0-0013 3728 + 0-0543 — 0-03I 4101 + 0-0766 — 0-03I 4101 + 0-0766 — 0-023 3761 — 0-0036 + 0-0018 4106 + 0-0017 3423 — 0-0019 3761 + 0-0014 — 0-0014 4118 0-0-069 +0-024 3437 +0-0133 — 0-013 4122 — 0-0199 — 0-158 3472 + O-O023 — 0-096 3834 — 0-0051 o-ooo 4'37 + 0-0005 + 0-008 3493 + O-OO12 — 0-005 3844 + 0-001 1 O'OOO 4138 + 0-0069 — 0-052 3495 — 0-0034 + 0-092 3846 + 0-0416 — 0-023 4141 + 0-0023 3846 + 0-0023  VII.— CATALOGUE. The Right Ascensions and North Polar Distances for 1810 have been reduced as described above. The clock stars, standard polars, and the places of stars used for polar points have been derived from Professor Newcomb's Fundamental Catalogue, and the computation of refraction has been made by the use of the Pulkowa Tables. The results here given are derived from the ledgers by combining the different faces with weights equal to the number of observations. Corrections have been applied where necessary to reduce the observations to 1810, for the values of proper motions specially deduced in the following section, and further in the case of the North Polar Distances for the corrections for division error given on p. xxxix. No observations of RA. below pole (except in the case of Polaris) have been used in the Catalogue place. In N.P.D. observations below pole for stars within 1° of the pole have been used with full weight. CATALOGUE. Explanation of the Separate Columns. The reference No. is that given in the original. Catalogue. Where, for reasons in the footnotes, there is no corresponding star position, the No. is left blank. Additional stars are inserted in their proper order of R.A. with the reference No. of the previous star, followed by a small suffix Roman letter. The No. in Auwer's Bradley sufficiently explains itself. The No. in Greenwich Catalogues gives the reference to the Catalogue from which the star's place has been taken for comparison with the Groombridge result, and which has been used in the following section of deduced proper motions. The No. without an asterisk refers to the second Ten Year Catalogue for 1890. The No. with an asterisk refers to the First Ten Year Catalogue for 1880. The No. with a dagger t refers to the Nine Year Catalogue for 1872. In cases where the Greenwich place has been taken from observations since 1897, a footnote gives the year or years in which the observations used for the place were made. The star's name follows the rules of nomenclature usually adopted at Greenwich. The magnitudes are taken from the following sources in the order given. The Harvard Photometric Durchmusterung (Annals of Harvard College, vol. xlv.), the Catalogues of the Astronomische Gesellschaft (marked) or the Bonn Durchmusterung (marked t). Type of Spectrum is taken from the Draper Catalogue of Stellar Spectra (Annals of the Astronomical Observatory of Harvard College, vol. xxvii.). The character of the spectra of the different stars is there indicated by the letters of the alphabet. The varieties of Type I. are indicated by the letters A to D; those of Type II. by the letters E to L (pp. 2-4, Introduction). No reference is given except to stars of Types I. and The mean date is expressed in years and decimals of a year reckoned from 1800, corresponding to the days of observation. The number of observations gives the aggregate number of all the observations in the different years upon which the star's place depends. The precessions and secular variations for 1910 have been computed from the Struve Peters' constants of precession by the use of Folie's Tables — Douze Tables pour le calcul des Reductions Stellaires. The R.A. and N.P.D. have been taken for 1910 correct to 1910 and 2" respectively. INTRODUCTION TO GROOMBRIDGE CATALOGUE. The annual proper motion which is the value derived from the discussion of the Groombridge observations, details of which are given in the following section, has been used in this section to reduce all observations to the epoch 1850. VIII.— PROPEE MOTIONS. The proper motions given here are derived in the main from a direct comparison of the results of the new reduction of Groombridge's observations with those of recent Greenwich Catalogues and are deduced for the epoch 1850. They are embodied in the Catalogue without any corrections for secular variation. The proper motions marked with an asterisk are those which are not derived solely from a comparison between the Groombridge and Greenwich results. The great majority of these are cases where the Groombridge results depend on only one or two observations. Where discordances were considerable, and seemed to be fairly divided between Groombridge and Radcliffe, the resulting proper motions derived by comparing Greenwich and Groombridge and Greenwich and Radcliffe, were combined according to the relative number of their observations, after giving double weight to those of Groombridge. In a few cases, the adopted proper motion has been derived solely from the result of the comparison between Radcliffe and Greenwich. The object of comparing the results of the Groombridge, Radcliffe, Astronomische Gesellschaft, and Greenwich Catalogues side by side was that while the Radcliffe and Astronomische Gesellschaft Catalogues would be a useful check on the proper motions derived from the Groombridge and Greenwich results, the residuals derived from the comparisons would afford valuable material for a discussion of the systematic errors of the Radcliffe and Astronomische Gesellschaft Catalogues. The Greenwich Right Ascensions and North Polar Distances for 1890-1890 are mainly derived from the Second Ten Year Catalogue for 1890-1890. Of the 605 Groombridge stars not to be found in this Catalogue, the places of 104 are derived from the Nine Year Catalogue for 1872, of 408 from the First Ten Year Catalogue for 1880, and of 93 from the results of observations made since 1896. Numbers representing blanks, additional stars, or discordant results will be found on p. xli. Reduction to 1890-1890 The Groombridge Right Ascensions and North Polar Distances given in this section for 1890-1890 are the same places as those given in the section "Catalogue," but without any correction for proper motion. The reduction from 1810-1890 to 1890-1890 was made by means of the Struve Peters' constants of precession from Folie's Tables. For stars beyond 5° from the pole the reduction has been effected by taking the mean of the precession for 1810-1890 and by applying The additional correction for the third term where necessary. For stars within 5° of the pole, the reduction has been made by the following formula: R.A.l8lo + 80 x 0,50 + 18-67 (jj,8lo + pl890 - 2 j),85o) + 1-07 (sec. varn-l890). The Radcliffe Right Ascensions and North Polar Distances for 1890-1890 are the places deduced from the Radcliffe Catalogue, 1845, without any correction for proper motion. The reduction from 1845 to 1890 was made by means of the Struve Peters' constants of precession from Folie's Tables. For stars beyond 5° from the pole, the reduction has been effected by taking the mean of the Struve Peters' precession for 1845 and by applying the additional correction for the third term if necessary. For stars within 5° of the pole, the reduction has been made by the following formula: (R.A., 84 + 5 = 5,350 + sec. varn-,850) + £ (total procession from 1810 to 1890) + 10 (/>,890) = Pis,0) — '-. (sec. varn-1890 + sec. varn-,850) + 2 sec. varn-,850). The Right Ascensions and North Polar Distances have been further corrected for systematic errors which are given below. The Right Ascensions and North Polar Distances for 1890'0 of the various Astronomische Gesellschaft Catalogues are the places deduced directly from the Catalogue for 1875. The reductions from 1875 to 1890 are made by taking the means of the processions at the two epochs. Those stars which are marked as fundamental in these catalogues have not been used in this comparison. The reductions to 1890'0 for the Greenwich Catalogues are made by taking the mean of the precessions at the two epochs. No corrections have been applied for proper motion. Systematic Corrections. As the new reduction of Groombridge's observations is based on the system of Professor Newcomb's Fundamental Catalogue for 1900, and as the main difference between this Catalogue and the modern Greenwich Catalogues (Introduction to Greenwich Ten Year Catalogue, 1890, pp. 44-46) consists, in the case of the Right Ascensions, of different epoch corrections, and in the case of the North Polar Distances of the use of different epochs. Refraction tables, all the Greenwich Right Ascensions referred to 1890 have been corrected as follows: Nine Year Catalogue, 1872 First Ten Year Catalogue, 1872 Second Ten Year Catalogue, 1872 Stars observed since 1896 + 0-03 + 0-04 + 0-05 and the use of Pulkowa Refraction Tables has been substituted for those of Bessel in the reduction of the North Polar Distances by means of the following table. In applying these corrections, it must be borne in mind that for observations below pole full weight is given as far as N.P.D. 15°; from 15° to 36°, f weight; from 36° to 41°, 5- weight; and below 41° the observations below pole are not used. The North Polar Distances of the 1872 Catalogue have been specially corrected by the use of the table published on p. 27 of the introduction to that catalogue. Table of Corrections for reduction to Pulkowa Refractions and Colatitude 38° 31' 21"'75. Bar ometer 30 in. Thermometer 50° to F. Argument N.P.D. Correction. N.P.D. Correction. N.P.D. Correction. 40 S.P. 0/:45 20 S.P. — 0/:45 20 S.P. — 0/:45 20 S.P. — 0/:45 30 — 0/:45 32 — 0/:45 16 —  — 0-09 44 — 0-16 28 — O'2O 3§ O'OO 22 — O'lO 46 — 0-16 26 — 0-18 ij S.P. + Q-OI 24 — O'l 1 48 -0-17 24 -0-15 1 1 — O'O2 26 — o-iz <;o -0-17 22 S.P. -0-13 sl — 0*04 28 -0-13 5* -0-18 The following systematic corrections have been applied to the Right Ascensions and North Polar Distances of the Radcliffe Catalogue, 1845. Table of Systematic Corrections to the Right Ascensions of the Radcliffe Catalogue, 1845. h s h s h s h S 0 +0-05 6 — O'O2 12 — 0-06 It + 0-04 i + 0-04 7 — 0'O4 13 — 0-05 '9 + 0-05 2 + 0-03 8 — °'°5 H — 0-04 20 + 0-0, 3 + 0-02 9 — o'o6 '5 — 0-03 21 + 0-05 4 + 0'OI 10 — O'o6 16 •oo 22 + 0'0; 5 — O'OI 1 1 — 0-06 17 + 0-02 23 + 0-05 PROPER MOTIONS. xlix T«I>1<> of Systematic Corrections to the North Polar Distances of the Radcliffe Catalogue , 1845. N.P.D. o o 5 10 '5 20 o-o -0-3 -0-6 -07 -07 -0-5 N.P.D. JO 35 40 45 5° 55 -0-4 — O'2 O'O + 0-1 + 0-2 +0-3 The following is a list of the errata of the Radcliife Catalogue, 1845, applied in forming the adopted places for 1890'0. Radclifle No. GroonibriJge No. 421 301 R.A. for 27* 64 read 28-26 616 45* N.P.D. „ i8"-o 1 5"' 5 826 578 R.A. „ 4i°-98 41-00 1 200 807 R.A. „ 3-59 4-57 '594 1047 R.A. „ 30-88 29'-88 1876 1263 R.A. „ 30-37 32"'37 2199 1469 N.P.D. „ 42° 22* 2835 1869 N.P.D. „ i6"-3 i8"-3 3180 2096 R.A. , 50-22 50-29 3635 2398 R.A. 238'44 „ 2 3s- 2 2 3807 H95 R.A. 4-72 4"34 5431 3594  proper motions deduced in this work, have been used. The Groombridge Catalogue places, as has been explained above, depend on Newcomb's Fundamental Catalogue, and the modern Greenwich places, as has also been explained above, have been brought into line with Newcomb's Catalogue (see Introduction, Greenwich Ten Year Catalogue, 1890, pp. 44-46) by applying an epoch correction to the Right Ascensions, and by reducing the North Polar Distances with Pulkowa refractions from the table given on p. xlviii. Consequently, the comparisons are made with an adopted Groombridge-Greenwich system of R.A. and N.P.D., depending at one end on the Groombridge Catalogue for 1810-1890, and at the other in the main on the Greenwich Ten Year Catalogue for 1890. Comparisons are made with the following Catalogues: 1. Professor Newcomb's Fundamental Catalogue for 1875 and 1900. 2. Professor A.uwer's Bradley Catalogue from The places given by Dr. Herman Kobold for 1810 in his paper — Untersuchung der Eigenbewegungen des Auwers-Bradley Catalogs nach der Bessel'schen Methode. Professor Struve's Catologus generalis continens position medias ad 1830 ad reductas ex observationibus meridianis annis in 1822 ad 1843 in specula Dorpatensi institutis. The Eadcliffe Catalogue for 1845. The Catalogues of the Astronomische Gesellschaft, viz.: Kazan Christiaii. Helsingfors. Limits of N.P.D. 10-15 20-25 25-35 Harvard Bonn. Lund. Limits of N.P.D. 35-4°° 40-50 5°-55 Comparison with Newcomb's Fundamental Catalogue. The places of Newcomb's Catalogue were reduced to 1810 by means of the formula given in his Catalogue, and of the values of the precessions and proper motion adopted by him. The separate results of Groombridge's observations for face East and West are those given in the section "Ledgers," reduced to 1810 with the proper motions used in the Ledgers, pp. xlii.-xliv., and not with those given in the final Catalogue. The resulting differences in N.P.D. constitute the basis of the division errors given on p. xxxix. For combining the resulting differences for the two faces, the following weights were used: No. of Observations. 1 2-4 5-9 10 and over Weight. 1 2 3 COMPARISON OF CATALOGUES. Detailed Comparison for all Stars common to Newcomb's and Groombridge's Catalogues arranged in order of N.P.D. N.P.D. Groombridge No. Newcomb No. R.A. N.P.D. Adopted Newcomb's R.A. 1810-0. Groombridge East— Newcomb. +1 If S Qroombridge West— Newcomb. -4-J Adopted Newcomb's N.P.D. 1810-0. Groombridge East— Newcomb. -4-J -7 2422 1087 17- 6. -7.40. 12-85 -0-57 3 -0-94 3 -6 16"j? 6cq IO. 7. — 6. 29. 6-91 + 0-36 A j IQ4.O w J7 814. / * 12 4.8 — C 1 3 I 1 Q -t-o-6? T 2 -~ 5 — 4. T ca * - Tw' O. 4.C. J- J J" * J * 7 — 4.. 4.6. 7'I I -r \j w^ +0-83 T it O'I7 3308 7 I2CC - J J 2O. 4?. — I — 0*11 2 + 0-66 2 3308 1255 20. 44* 43-33 -4'47 I — 0-56 3 16. 29-09 +0*19 2 + 0-63 4 2 '44 60 0.37.35-29 -1-66 2 ... 2. O. 10-58 + 1-57 3 + 1-03 i 1141 449 6. 7. 56-27 -3'54 2 43-32-55 +0-84 3 +0-89 2 2283 962 15.45. 19-64 ... -3-05 2 — 0-46 3 3 2628 1 164 18. 33. 29-20 — I -01 2 + 1-65 2 3.25.46-42 + 0-56 4 +0*94 4 2667 1167 18.40.45-93 — 0-67 3 + 0*78 2 3.32-94 — 0-18 4 4 3548 1402 21.34.49-41 -''33 2 -2-24 2 46. I7'I \ — 0-38 2 -0-88 2 4101 '559 23.27.42-55 -2-32 2 -1-68 I 44- 27-36 -0-08 3 — 0'O2 1 4 '77 59 o. 44. 50-30 -1-56 I O'OO 2 4.46. 7- 1 1 +0-93 i — 0-05 3 750 264 3- 40. 2 I -O2 +0-26 3 ... ... 58. 27-18 — 0-26 3 ... 944 356 5. 2. I8-72 — 0-30 2 +0-81 I 56. 54-05 + 1-14 2 -0-32 i 1620 654 9-57-5572 — 0-07 3 47- 45H6 ... + roi 3 5 1940 8,4 12.47.55-58 — 0-62 3 — 1-06 2 5-33- '3''9 + 0-65 3 + 1-18 i 6 1633 659 10. 6.41-69 ... — 0-20 3 6. 29. 6-91 +0-15 2 +°'54 3 7 1259 467 6. 50. 22-66 + 0'47 2 7. 15. 50-88 + O-22 3 '537 600 9- 8.56-39 ... +0-61 3 51. 8-96 + 0-50 3 2422 1087 17. 5.52-07 — 0-67 2 + 030 2 40. 12-85 — OM2 2 +0-61 4 8 3370 1368 20.55.36-39 — 0*22 2 -0-47 2 8. 10. 57-33 — 0-85 2 — 002 2 means of iz and 14 observations above and below pole. Hi INTRODUCTION TO GROOMBRIDGE CATALOGUE. Comparison between Groombridge and Newcomb — continued. N.P.D. Groombridge No. Newoomb No. R.A. N.P.D. Adopted Newcomb's R,A. iSio'o. Groombr. East— Newoomb. i B ^ Groombr. West— Newcomb. ti "§> 3 £ Adopted Newcomb's N.P.D. 1810*0. Groombr. East— Newcomb. S <X> £ Groombr. West— Newcomb. J • £ h ni s s s 0 f It n // 10 1159 424 6. 13. 36-26 — 0-07 3 — O'OI I 10. 15. 52-54 ( + 276) (4) (+0-88) (') 2546 1 165 18. 14. 13-14 ... -0-31 3 2. 19-70 ... — O-I2 3 2900 1261 19. 32. 56-01 + 0-39 i ... 47.22-25 -°'33 3 ... ... 3373 1371 20. 55.47-83 +0-32 3 10. 1-32 + 0-05 3 1 1 242 70 o. 56. 19-94 -0-52 3 -0-41 2 II. 20.33-38 + o'55 3 +0-61 2 577 184 2. 41. 25'O2 ... +0-19 2 21. 1-67 + 0-92 3 +0-51 3 919 326 4. 51.3072 + 0-27 2 +0-25 I I. 10-92 +0-48 3 + 2-26 i 1706 695 jo. 44. 20-72 -0-45 2 12. 58-82 + 1-25 3 • •• 1859 763 12. 3. 8-08 — 0-07 2 —0-82 2 19. 38-76 — o-o6 2 — O'2i 2 2094 890 14. 9. 47-7 1 ... ... —0-58 3 33-3577 ... ... + 0-54 3 2294 1006 15.51. 663 -0'37 2 -0-48 3 37-3778 -0-25 3 + 0-51 4 12 616 200 2. 56. 41-26 -+ 0-60 1 — 0-14 2 12.58.56-49 + 0-80 i — 0-32 3 1217 438 6. 32. 10-99 + O'O1 2 48.37-23 + 071 3 ... 1852 759 'i-55 2473 -0-23 2 i-53'55 -0-66 2 +o'57 2 2373 1064 16.40. 0-17 -0-24 2 ii. 078 +0-13 3 2655 1194 18. 38. 51-00 -0-5I I 36. 39-64 — 0-62 3 ... 3H8 1318 20. 15. 3-67 -0-35 2 -o-73 2 51.59-01 +0-34 2 34-19 1387 21. 9. 3-80 + 0-12 2 +0-55 2 38.48-95 + 0-88 3 + 0-94 2 13 1408 5-7 7. 55. 19-51 — 0-06 I 13.41- 5-16 + 1-18 3 1650 668 10. 18. 34-69 4-0-86 I ... 18. 53-61 -0-27 3 2130 911 14. 28. 4-98 — 0-87 2 27. 34-02 + 0-75 2 -0-89 3 2334 103 + 16. 16. 24-44 — 0-30 2 38.56-92 -0-14 3 2349 1045 1 6. 23. 12-60 -°'34 3 48. 44-06 ... — 0-26 3 2349 2501 1150 17.57- 57'36 ... + 0-32 3 I. 15-66 ... -0-83 3 4122 1570 23- 31.38-95 ... — 0-50 2 25- 39-34 +0-68 2 — 0-87 3 «4 29 12 °- 5- 39'39 — 0-28 3 14. 6. 20-89 + 1-52 3 ... 848 294 4.23.30-38 — O'O2 2 ... 25.48-67 +0-83 3 ... 2726 1212 1 8, 52. 25-98 — 0-Z3 2 + 0-03 I 47-457 +0-80 2 + 2 -01 3 3834 1491 22. 28.53-43 — O'O2 2 45- 6'54 — 0-17 3 ... 15 966 349 5. 14.24-31 + o'o6 2 — 0-27 2 15. 6. 32-04 — 0-36 2 + 0-99 2 '374 507 7- 37- !2-n -0-25 3 35-48'39 + 0-89 3 144.6 545 8. 18. 16-77 -°'33 3 42. 26-82 + 2'34 3 2 172 944 14. 51.23-58 -0-37 3 — 0-07 3 4. 5-01 +0-76 3 + 0-79 3 3*5« '343 20.33. 52-52 -0-38 2 — o-i i 2 41.55-41 +0-04 2 + 1-58 2 4002 1533 23. i. 53-32 -0-15 2 — 0-06 2 38. 18-15 + 1-62 3 + 2-32 3 16 129 4' 0.33. 19-47 + 0-66 I + 0-19 2 16. 3. 10-33 +2-30 i + 174 2 1586 632 9. 41. 6'22 -0-28 3 ... 13.34-49 +"°'96 3 2OOI 846 13. 21. £8'25 -0-17 2 ... 37. io'8o ! +0-72 3 ... 4|63 1587 23.45.43-20 + 0'02 2 +0-31 2 38.4775. +I-24 2 + 2-46 2 17 337 96 1.23 34-96 — 0-07 3 17.56. 6-22 — 0-09 3 ... 2029 858 13.32. 38-30 — 0-16 2 ... 47- '9'59 + 0-18 3 ... COMPARISON OF CATALOGUES. Comparison between Groombridge and Newcomb — continued. liii N.P.D. Groombridi'e No. Newcotnb No. R.A. N.P.D. Ado)iu-.l Newcomb's R.A. 1810-0. Groombr. East— Newcomb. 4 1 Groombr. West— Newcomb. w- a *® £ Adopted Newcomb's N.P.D. 1810*0. Groombr. East— Newcomb. tl •a '3 * Groouibr. West— Newcomb. «J J 0 h in s a 8 e / '/ H tt 17 2236 976 15.21. 7-56 -0-23 2 4-0-07 2 I7.29.23-93 -O^I 2 + 1-89 3 2475 1 140 17. 45. 20-66 . .. 45.4I-48 4-0-90 3 2586 185 18. 24. 28-27 -0-38 3 -0-32 I xi. 9-60 + O"II 3 4-1-80 3 2840 1248 19. 19. 7-81 4-0-10 X — 0-24 2 o. 3''7 — 0-19 2 4-1-83 3 3631 '439 21. 50. 29-10 ... 4-0-14 2 11.42-83 ... + 3'35 3 3665 '445 21. 56. 29-10 — O'2I 2 ... 43.22-99 + 0-57 2 ... 3846 ' 494 22. 31. 4-13 + 0-32 2 ... 20. 29-27 — 0-64 3 ... 18 427 126 1.47. 27-80 — 0-05 2 1 8. 30. 23-29 + 2-35 3 5H 157 2.20 14-57 — o-io 2 4-0-05 2 i. 28-28 + 0-33 2 4-2-77 X 258, 1183 18.23.28-08 — O"O2 3 4-o'i i 2 45.57-22 + 0-79 4 4-*'27 4 2748 1.221 18. 56. 40-95 — 0-O5 3 — 0-12 2 57.32-61 — 0-40 4 4-0-72 3 3241 1340 20. 30. 44-36 — 0'2I 3 6. 46-27 4-0-98 3 3718 1460 22. 6. 779 -0-28 3 35-35 32 +0-25 3 ... '9 7H 237 3. 30. 30-88 + 005 3 19. 16. 14-15 + 0'37 3 20. 44-22 ... + 0'44 3 1504 616 9.25.46-22 — 0-16 3 54. 28-61 +0-56 3 1673 678 10. 29. 16-35 — 0-09 3 56. 5-06 4-1-H 3 ... 1790 73° II. 19. 58-69 — 0-05 2 4-0-23 i 37- '8-48 — 0-36 3 + 0-57 2 1906 793 12. 25. 18-15 — 0-65 2 — O-ig 2 9- 47'03 — O'12 2 — 0-28 3 3566 1426 21.39. 577 -o-34 2 -0-33 2 xo 318 90 i. 17. 17-28 4-0-10 3 xo. 43. 7-61 4-rn 3 I 1000 402 5- 57- 53'6+ +0-44 2 • • • • 38. 8-82 +0-16 2 1219 436 6. 33. 9-03 +0-03 2 4-0-17 i 54- 46''6 -1-41 3 — 0-12 i 1404 522 7.53.44-40 — O'O2 2 • 0-15 2 59. x-79 4-0-17 2 4-0-77 2 2359 1059 16. 28. 24-45 ... + 0-01 2 49. 16-07 ... -0-23 4 2974 1290 19.48. 45-41 0-00 3 4-0-06 I 12. 58-63 4-0-26 3 4-0-38 3 3493 1409 21. 26. 973 + 0-02 2 4-0-02 3 16. 18-48 -0-45 4 4-0-88 3 21 1308 478 7- 1°. 59'48 + 0-02 3 21. 9. 58-28 + 0-34 3 1490 572 8.45. 13-68 — 0-29 3 -0-08 i 38. 35-96 4-0-50 3 -1-05 i 2214 968 15. 12. 50-62 O'OO 2 55.46-93 4-0-72 3 2320 1027 16. 5.51-35 -0-17 3 41. 18-66 4-078 3 2451 1126 17.32.44-: -0-24 2 44. 40-55 4-0-28 3 2461 1132 17.38- 4-63 — 0-26 3 — 0-04 2 9. 19-09 + 0-04 3 4-1-2I 4 22 303 83 I. 12. 40-51 + 0-12 3 22. 52. 0-29 + 0-49 3 359 103 I. 28. 26-46 — 0-04 2 4-0-06 2 55- 27*64 -0-17 2 -0-86 2 537 167 2. 28. 39-38 -t-O'IO 2 . 59- 37-79 4-0-85 3 1510 582 8. 53. 29-80 + 0-26 2 -0-66 2 6. 25-64 -1-51 2 -o-x4 2 1819 737 11.31. 4571 + 0-14 2 12. 15-76 4-0-98 3 2811 1240 19. 12. 28-74 — O'll 3 ... 40. 21-01 4-0-41 3 4-1-50 I 4038 '544 23. 10-5^59 + 0-02 2 4- 0-06 3 55. 36-31 — O'X 4 — O-02 4 liv INTRODUCTION TO GROOMBRIDGE CATALOGUE. Comparison between Groombridge and Newcomb — continued. N.P.D. Groombridge No. Newcomb No. R.A. N.P.D. Adopted Newcomb's R.A. 1810, Groombridge. East— Newcomb. 4 8 Groombridge. West— Newcomb. 4 Adopted New Comb's N.P.D.. 1810-0. Groombr. East— Newcomb. 4J JO •1? Groombr. West— Newcomb. 1 • h m s 8 s « 43 3 1 8. 2975 40-76 3 4141 1580 23. 38. 54-40 — 0-08 3 + 0-06 3 14- 53'32 + "49 3 + 1-10 3 24 464 136 i. 59-44''5 -0-08 3 24. 22. 29-12 ... -0-04 3 1076 398 5-53-44'12 — 0-29 3 — 0-08 2 15-52'54 +1-46 3 + 1 '06 2 1771 722 ii. 27-17 — 0-14 2 37- 54'°' + 0-58 2 2059 870 13.45.53-06 ... -°'33 3 20. 6-66 + 0-90 3 2076 885 13. 59. 15-02 — O'12 2 + 0'I 1 2 42- 4^33 + 0-60 4 + 0-67 3 2428 1094 17. 8. 15-61 — O'21 2 + 0-14 2 3. 2-66 + 0-60 4 + 0-58 4 2640 "95 18-35- 37"'5 -0-17 3 40.51-92 -0-23 3 ... 2796 1236 19. 9. 1-90 — o-oi 2 20. 18'22 ... ... + '49 3 39°5 1510 22. 42. 56-84 +0-01 2 — 0-09 3 47.48-63 -087, 2 — 0'21 4 *  2 ... 25. 39. 56-66 + 0-75 3 ... 26 436 128 1.49. 470 + 0-05 2 + 0-17 2 26. 32. 6-78 — 0-60 2 -0-35 2 1548 60 1 9- 16-24'59 + 0-16 I + 0-13 2 7. 2-67 — 0-18 2 — o 36 2 1917 803 12. 33. 12-97 — 0-18 2 ... 14. 31-68 -0-44 4 -°-43 I 2280 1002 15.43. 48-05 + 0-02 I -0-51 2 27. 16. 20-81 + 0-23 2 -0-55 2 716 225 3-25-47'H — 0- 09 3 ... 24.49-42 + 1-50 3 961 344 5. 12. 15-76 — O'Ol 2 6.38-46 +0-63 3 1729 702 10. 5. 53-69 -°'33 i + 0'O2 3 13- 34'32 + 1-09 4 -0-45 4 3218 '336 20. 26. 22-43 O'OO 2 — 0-04 2 38. 3°'57 + 0-74 3 + 0-15 2 3850 1496 22. 31. 56-03 — o-io 2 + 0-12 2 24- 3'°3 + 0-65 2 -1-50 2 28 85 27 0. 22. 17-60 — 0-05 2 + 0-12 2 28. 7. 6-13 + 2 l6 2 + 0-42 3 1  39- 37° — 0-50 4 — 0-38 4 2125 913 14. 26. 33-88 — 0-14 3 ... 55- 59'46 + 0-88 3 2346 1050 16. 21. 26-47 + 0-07 3 + 0-07 3 3- 41 + 0-65 4 — 0-22 4 3°97 1312 20. 8. 27-02 + 0-02 3 29.38-25 ... + 0-54 3 3286 1361 20. 41. 24-41 — 0-02 3 + 0-06 2 53.46'51 -0-33 4 + 0-54 3 3437 '397 21. 14. 2-11 — 0-01 2 + 0-14 3 12. 59-15 + 1-11 4 + 0-19 4 3685 1452 21. 59.14-40 . 0-28 2 8. 18-20 + 2-12 2 — O'2I 2 4059 1550 23. 16.27-13 — 0-22 3 ... 45- 32'54 + 0-35 3 + 0'IO 2 29 754 245 3-41- ''97 ... + 0'IO 3 29.27.44-70 • • • + 0-70 3 905 312 4.46. 34-12 ... + O'O2 3 51. 11-25 -I-4I 2 + 0-31 3 1387 5'3 7-45-23'37 — 0-06 2 — o-o6 2 10. 18-03 — 0-70 2 — 0-61 2 2002 848 13.21.27-52 + 0-07 3 4. 11-40 + 0-43 3 2164 941 14.46.37-76 ... + O'I2 3 55.47-04 ... + 177 3 3569 1430 21. 39. 58-28 — O'Og 2 -0-17 2 45- I0'59 -0-54 2 + 070 2 COMPARISON OF CATALOGUES. Comparison between Groombridge and Newcomb — continued. Iv N.P.D. Groom bridp« No. Newcomb No. R.A. N.P.D. Adopted Newcomb's R.A. ilio'o. Groombr. East— Newcomb. J V £ Groombr. West— Newcomb. •4 •» £ Adopted Newcomb's N.P.D. iSio'o. Groombr. East— Newcomb. *j % O i* Groombr. West— Newcomb. •*£ f o h in s 8 s m t H n /' 3° 181 54 O. 45. 20-19 ... — 0-04 3 50.18.53-63 -0-34 4 + 0-6 1 3 305 86 I. 13. 29-40 ... ... — 0-04 2 45-*S-47 -1-16 2 + 0-36 2 662 214 3. 13.46-92 + 0-14 2 + 0-14 2 44. 4-88 — o-n 2 +0-61 2 1123 406 6. 2. 51-03 + 0-18 2 +Q-33 I 56. 18-81 — 0-67 4 -091 , 3 «349 493 7. 26. 51-82 -0-14 2 — 0-04 2 Si-39'H — 1-22 2 +0-67 X i;8i 626 9.37.22-30 . .. + 0-08 2 4-3-3° -0-85 I — 0-04 3 1899 788 12.21. 14. 15-80 + O'21 3 31.42.57-06 -0-51 3 1231 444 6.40.47-23 +0-22 2 20.44-37 — 0-30 3 ... 1660 671 10. 22. 49-81 + 0'O2 3 + 0-17 2 56.37-19 +0-08 3 -1-50 2 1862 766 12. 5. 57^0 -0-19 2 — 0-09 2 54- 39'20 — 0-05 4 — 0-63 4 2570 1 184 18. 21. 7-95 + O'21 2 + 0-26 2 18.2274 O'OO 2 + 0-25 2 4 23.59. 6'58 O'OO 2 -0-13 3 53- 5474 -0-31 3 — 0-46 4 3 1726 701 10. 50. 17-57 O'OO 2 -0-13 3 53- 5474 -0-31 3 — 0-46 4 3 1726 701 10. 50. 17-57 O'OO 2 -0-13 3 53- 5474 -0-31 3 — 0-46 4 3 1726 701 10. 50. 17-57 O'OO 2 -0-13 3 53- 5474 -0-31 3 — 0-46 4 3 1726 701 10. 50. 17-57 O'OO 2 -0-13 3 53- 5474 -0-31 3 — 0-46 4 3 1726 701 10. 50. 17-57 O'OO O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O'O' +0-05 3 33. 11.45-17 + 1-05 4 + 0-13 4 871 298 4.32.13-58 — 0-05 2 +0-24 3 35-46-93 — 0-24 2 -0-35 3 1649 666 10. 18. 22-80 — 0-08 3 3- 0-42 +0-43 3 1932 816 12. 45. 38-06 -)-o-o6 3 +0-07 3 0.23-73 — O'lO 4 -o'-36 4 2016 853 13. 26. 47'80 + 0-20 3 40. 28-50 — 0-02 3 2488 1146 17. 50. 14-80 + 0-18 2 — 0-07 i 5- 38-23 + 0-22 4 — 0-07 4 3281 1360 20. 40. 37-87 + 0-03 2 +0-04 i 5-55-48 -1-36 3 — 0-16 i 3536 1419 21. 33. 4-37 -0-14 2 — 0-30 3 Z2. 1-35 — 0-63 3 -1-17 3 4161 1586 23.44. 57'oS -0-08 3 33.26-83 ... + 0-94 3 34 "7 37 0.29.47-93 — 0-04 3 34. 30.23-61 -0-49 4 — 0-08 4 559 '77 Z-36. 55-41 — 0-04 3 54. 10-64 -,-46 4 -1-70 4 1029 377 5.38.55-72 +0-29 2 + O'I2 2 21. 16-25 -'74 2 — 0-30 2 1293 473 7- 7- '9'z8 — O-05 3 ^^. 35-06 ... -0-51 3 1501 575 8. 50. 0-04 +0-16 3 1987 8 42 13. 16. 15-12 2 + 0-16 3 4.45-10 + 0-18 4 — 0-26 4 2296 1014 15. 53. 7-84 + 0-08 3 42. 32-91 + 0-70 3 ... 2343 1048 16. 20. 16-73 — 0-06 3 21. 31-09 + 0-28 3 *445 I 122 I-. 28. 26-46 ... — 0-12 2 40. 54-42 ... — 0-30 3 2446 1124 17. 28. 31-80 ... — 0-0-04 2 41. 36-46 ... — 0-22 3 3102 3'5 20. 8. 58-48 — 0-20 2 — 0-07 4 °- 35'53 — 0-26 2 -0-68 4 3606 .436 21.46.43-34 ... — 0-14 3 40-47-57 ... + O'II 3 Ivi INTRODUCTION TO GROOMBRIDGE CATALOGUE. Comparison between Groombridge and Newcomb — continued. N.P.D. Groombridge No. Newcomb No. K.A. N.P.D. Adopted Newcomb's R.A. itie'o. Groombr. East— Newcomb. |3i Groombr. West— Newcomb. J3 "£ Adopted Newcomb's N.P.D. iSio'o. Groombr. East — Newcomb. M be Groombr. West— Newcomb. -u! I 3 0 h m s s s t t ft „ „ 35 1040 383 5.43-53-I6 + 0-05 2 + 0-25 2 35.44.49-39 -1-98 4 -1-71 4 1831 748 11.43.4677 — 0-19 2 — 0*05 3 -0-27 4 — 0-46 4 1861 764 12. 5. 14-82 + 0-40 3 ... 30. 26-80 +0-23 3 ... ... 36 237 65 °- 55- 43'°5 — 0-08 3 • *. 36. o. 59-15 -0-69 3 ... 837 282 4.17. 1-91 + 0-09 3 3'- 274 : ... -073 3 1460 546 8. 25. 8-76 ... + 0-15 3 38. 4-65 — 0-16 3 2813 1243 19. 12. 42-46 — O'OI 3 + 0-16 2 | 58.40-27 -077 4 -0-94 4 37 102 3' o. 26. 26-93 — O'Oj i +0-18 2 37- 9- r84 — I -06 2 — 2-09 2 600 190 2. 51. 6-70 -(-O'OI 2 —0-07 2 14.53-11 — 2-12 2 -1-40 3 1406 520 7- 54- 6'4' + 0-21 3 57- 32-15 +0-16 3 '554 604 9. 20. 4-62 — 0'12 2 27. 52-69 -0-17 4 -o-37 4 2093 895 14. 9.25-86 +0-16 3 — 0-22 I 45. 7-62 — 0-02 4 — 0-61 4 21 IO 904 14. 18.43-63 + O'02 3 + 0-29 2 17. 0-18 -0-81 4 -0-28 4 2443 1 119 17. 26. 876 + 0-02 3 + 0-01 2 33. 11-92 -079 4 -1-03 4 2671 1207 18.42. 28-15 ... O-02 2 12. 59-42 — 0-91 3 38 573 182 2.40. 5173 + 0-16 2 38. 1.2974 -0-39 4 — 0-63 3 2492 1151 17. 52. 11-8g +0-03 4 + 0-08 4 29. 3-24 -0-52 4 -0-32 4 2859 1260 19.24. 5477 — 0-07 3 4 40. 13-39 +0-10 4 +0-14 4 2987 1295 19.50.42-91 o-oo 3 3.39-28 +0-56 3 376i H77 22. 16. 6 44 o-oo ¥ +0-05 3 43. 1061 +0-08 4 + 0-18 3 39 467 137 2. i. 2-47 + O'1O i +0-07 3 39. 49.27-23 + 0-61 i + 1-08 1757 715 ii. 5-56-04 — 0-36 i + 0-12 3 29. 19-48 + 0-38 i — 0-05 3 2050 866 13. 40. 2-41 +009 3 + 0-05 4 44- 4-25 + o-73 4 + I-IO 4 2115 908 14. 22. n i +0-03 3 18. 0-69 + 1-29 3 ... 4° 372 105 '. 3L49-23 ... — 008 2 40. 16. 25-57 -0-68 i -0-58 3 389 115- 1.40. 8-36 +0-05 2 + 0-08 2 9- 7-7° + 1-07 2 + 0-68 2 650 211 3. 10. 49-21 +0-04 2 + 0-06 3 49-34-15 + 0-30 3 + 0-58 4 777 257 3. 52. 28-86 +0-14 I + O-QI 2 10. 39-43 +0-13 2 + 0-87 2 1016 369 5. 31. 11-61 -0-49 I —0-08 3 16. 20-11 + 1-26 I + 1-92 3 1147 4>3 6. 10. 15-32 -|-O-2O 2 + 0-07 2 37-51"08 + 0-83 2 + 156 2 2-368 1066 16.33. 3576 +0-08 3 41. 42-26 ... — 0-04 3 2895 1269 19. 31. 20-68 — O'll 4 — 0-05 3 12.49-71 + 0-24 4 + 0-03 4 3799 1488 22. 23. 29-05 + O'IO 2 — 0-05 2 41. 28-14 + 0-80 4 + 097 4 41 545 170 2. 31. 17-27 ... — o-i i 3 41.35. 2-95 — 0-36 4 + 0-35 4 6,3 196 2.55.25-26 + O'2O 2 +0-09 2 7.23-16 + I-88 2 + 2-17 i '379 506 7. 40. 50-00 + Q-36 3 ... 57. 21'22 + 0-93 ! 3 ... ... 1492 569 8.46. 8-38 ... + 0'I2 2 13. 18-49 + °'45 4 +0-05 4 1823 740 II.35.58-22 ... O'OO 2 10. 3-11 -0-27 4 — 0-19 4 2183 956 14. 57.3I-6I — 0-06 3 ... 36. 4-30 +0-67 3 2440 II 14 17. 21. 42-42 + 0-05 2 34- 3°-°5 +0-89 3 2474 1142 17.45. 5^9 + 0-27 4 + 0-15 2 32. 57-45 -0-32 3 O'OO 2 3201 1334 2O. 24. 10-52 — 0-07 3 40. 56-07 + 0-46 3 ... 3567 1431 21.39.47-06 , . , — o-oi 2 33-56-18 +074 3 3989 1529 22. 59- 9'49 — O-O2 3 44. 12-70 ... + 1-63 3 COMPARISON OF CATALOGUES. Comparison between Groombridge and Newcomb — continued. Ivii N.r.D. Groombridee No. Newcomb No. B.A. N.P.D. Adopt*! Ncweomb's K.A. iSio-o. i Groombr. East — Newcomb. J .n .y 'aj * Groombr. West — Ncwconib. tt i 0 |£ Adopted Newcoinb's N.P.D. iSio'o. Groombr. Bust — Newcomb. -*-» i B Groombr West — Newcomb. J fc I h ni s a g 0 1 tt // „ •M 132 42 0.34. 11-43 + 0-13 2 + 0-07 2 42.45.27-*3 + 2-08 2 -0-86 2 348 99 1.26.23-59 ... ... + 0-05 2 20. 21-23 — 0-19 3 + 0-88 3 686 217 3. 17. 14-04 + 0-25 I + 0-15 3 40. ig-OI + 3-08 i + i'5' 2 722 230 3. 29. 26-98 — O'ZO 2 — O'OI 3 49-54'53 — o-i 6 4 — o'og 4 781 260 3- 54- 547* +0-03 3 48. 27-84 + 076 3 793 266 4. o. 59-50 +0-28 2 — O'OI 2 5.11-49 + °'47 4 + 0-16 4 '5°3 576 8. 50- 3576 +0-03 2 6- 573 +0-47 4 + 078 4 43 2092 894 14. 9. 9-24 +0-18 I O'OO 2 43. 2. 4-59 + '•53 i +0-49 3 233' 1036 16. 14. 2-10 +0-14 2 + 0-08 2 13.42-10 — O-22 4 + 0-15 4 2455 1131 17.34- 6-31 ... ... +0-17 2 53- >2'6s — O'I2 4 3089 «3'3 20. 7. 19-72 +0-09 3 45- '3'54 +7-6 1 3 3091 1314 20. 7. 38-91 O'OO 3 + 0'IO 2 49.47-23 -0-47 3 + 0-44 2 3362 '375 20. 53. 22-05 + 0-23 2 -|-O-22 2 12.57-29 +0-18 2 + 0-26 2 3394 1382 21. 0. 3-56 ... + 0'2I 3 6.37-35 ... ... — 0-38 3 4f 3 6 o. o. 29-18 +0-29 2 + 0'I2 i 44- 59- 7-I4 +0-88 3 +*'34 I 946 329 5- 3- 12.35-81 + 0-44 4 -0-64 4 '74' 708 10. 58. 56^01 — o-i i I — 0-04 3 28. 22-68 — O'lO 4 ' -072 4 2'37 919 14. 31.45-80 +0-19 3 ... 46. 11-48 + 1-26 3 • * * • 231 1 1026 16. 2.47-30 +0-08 3 33-4°'55 ... + 0-15 3 3472 1406 21. 22. 26-73 ... -f 0-08 3 7- 337" — 0'2O 3 4106 1567 23. 28. 18-05 +0-15 2 + 0-06 2 34- '2'93 -0-51 2 -I'29 4 4>37 '577 23- 36. 39-45 ... — 0-06 3 38. 29. 20-26 ... -1-37 3 45 300 82 I. 1 1. 2-50 — 0-04 2 + 0-46 i 45. 28. 14-13 +0-96 2 + I-14 i 3'2 88 i. 16. 20-69 3 34. 43-76, +0-44 3 ... 1050 387 5-45-35-69 +0-21 i -r-o'30 2 5. 12-24 + 0-57 4 -0-39 4 '793 728 I I. 20. 179 — 0-19 3 .,. • •• 47- 499 + 1-15 3 2078 886 14. o. 1972 -o-ii 3 ... 14. 7-05 ( + 8'Q3) (3) 2932 1283 19.39. 2-17 +0'O2 2 +0-05 3 19. 38-12 +0-46 3 — O'O 3 321:7 13C2 2O35 23 36'IQ + 0*61 4 -i-O'O7 J J 3495 J 1-83 +0-13 2 +0-05 2 4-52-57 — 0-04 — o'og 3 I7.53-26 + 1-32 3 3385 1380 20.58. 1-51 +0-05 4 49- 30-97 — 0-60 4 O'OO 4 4118 1572 23-3'- 5'0i + 0-03 2 + 0-07 2 43- I'S' -0-05 4 +0-90 4 47 840 285 4.20. 4-65 — O'O2 3 47.21. 18-52 —0-28 3 "495 573 8. 48. 15-61 +0-31 2 +0-18 * 28.26-55 + 0-43 2 +0-09 2 1642 657 10.10.5777 + 0'I I 3 32.59-33 -0-40 4 -0-08 4 1905 79! 12. 24. 41-62 + 0'O1 2 + 0-08 2 36.29-95 + 0-45 2 + 1-01 2 21 l6 909 14. 22. 7-50 -0-18 2 ... 20. 31-28 -i-37 3 Iviii INTRODUCTION TO GROOMBRIDGE CATALOGUE. Comparison bettveen Groorribridge and Newcomb — continued. N.P.D. Groombridgn No. Newcomb No. R.A. N.P.D. Adopted Newcomb's R.A. 1810.0. Groombr. East — Newcomb. 4J |M 'v Groombr. West- Newcomb. s 0> Adopted Newcomb's N.P.D. iSio'o. Groombr. East — Newcomb. -M $ E Groombr. West — Newcomb. i ® 0 h in s 3 8 / „ // // 47 2284 1007 15.46. 6-57 + 0-14 3 • •• •»• 47. o. 38-60 — 1-63 3 ... ... i 2348 1054 16. 22. 24-47 ... — 0-07 3 41.39-64 ... — o-*8 3 i 2358 1062 16. 27. 58-96 — 0-04 2 9-52-43 ... + 0-97 3 2533 1170 1 8. 9.44-38 + 0-08 3 53-57-00 + 0-01 3 ... 2905 1272 i9-33->5'45 + 0'12 3 36. 5579 ... 