how many stars have a distance at maximum of 30 light years or higher?
9
col : star | start\nyear | end\nyear | maximum\nyear | maximum\nmagnitude | distance at\nmaximum (ly) | current\ndistance | current\nmagnitude row 1 : epsilon canis majoris | ... | -4,460,000 | -4,700,000 | -3.99 | 34 | 430 | 1.50 row 2 : beta canis majoris | -4,460,000 | -3,700,000 | -4,420,000 | -3.65 | 37 | 500 | 1.99 row 3 : canopus (first time) | -3,700,000 | -1,370,000 | -3,110,000 | -1.86 | 177 | 310 | -0.72 row 4 : zeta sagittarii | -1,370,000 | -1,080,000 | -1,200,000 | -2.74 | 8 | 89.1 | 2.60 row 5 : zeta leporis | -1,080,000 | -950,000 | -1,050,000 | -2.05 | 5.3 | 70 | 3.55 row 6 : canopus (second time) | -950,000 | -420,000 | -950,000 | -1.09 | 252 | 310 | -0.72 row 7 : aldebaran | -420,000 | -210,000 | -320,000 | -1.54 | 21.5 | 65 | 0.85 row 8 : capella | -210,000 | -160,000 | -240,000 | -0.82 | 27.9 | 42.2 | 0.08 row 9 : canopus (third time) | -160,000 | -90,000 | -160,000 | -0.70 | 302 | 310 | -0.72 row 10 : sirius (current) | -90,000 | +210,000 | +60,000 | -1.64 | 7.8 | 8.6 | -1.46 row 11 : vega | +210,000 | +480,000 | +290,000 | -0.81 | 17.2 | 25.04 | 0.03 row 12 : canopus (fourth time) | +480,000 | +990,000 | +480,000 | -0.40 | 346 | 310 | -0.72 row 13 : beta aurigae | +990,000 | +1,150,000 | +1,190,000 | -0.40 | 28.5 | 82.1 | 1.9 row 14 : delta scuti | +1,150,000 | +1,330,000 | +1,250,000 | -1.84 | 9.2 | 187 | 4.72 row 15 : gamma draconis | +1,330,000 | +2,030,000 | +1,550,000 | -1.39 | 27.7 | 154 | 2.36 row 16 : upsilon librae | +2,030,000 | +2,670,000 | +2,290,000 | -0.46 | 30 | 195 | 3.6 row 17 : nr canis majoris | +2,670,000 | +3,050,000 | +2,870,000 | -0.88 | 14 | 280 | 5.6 row 18 : omicron herculis | +3,050,000 | +3,870,000 | +3,470,000 | -0.63 | 44 | 346 | 3.83 row 19 : beta cygni | +3,870,000 | ... | +4,610,000 | -0.52 | 80 | 390 | 3.18
how many stars have a distance at maximum of 30 light years or higher?
Star Start\nyear End\nyear Maximum\nyear Maximum\nmagnitude Distance at\nmaximum (LY) Current\ndistance Current\nmagnitude
Epsilon Canis Majoris ... -4,460,000 -4,700,000 -3.99 34 430 1.50
Beta Canis Majoris -4,460,000 -3,700,000 -4,420,000 -3.65 37 500 1.99
Canopus (first time) -3,700,000 -1,370,000 -3,110,000 -1.86 177 310 -0.72
Zeta Sagittarii -1,370,000 -1,080,000 -1,200,000 -2.74 8 89.1 2.60
Zeta Leporis -1,080,000 -950,000 -1,050,000 -2.05 5.3 70 3.55
Canopus (second time) -950,000 -420,000 -950,000 -1.09 252 310 -0.72
Aldebaran -420,000 -210,000 -320,000 -1.54 21.5 65 0.85
Capella -210,000 -160,000 -240,000 -0.82 27.9 42.2 0.08
Canopus (third time) -160,000 -90,000 -160,000 -0.70 302 310 -0.72
Sirius (current) -90,000 +210,000 +60,000 -1.64 7.8 8.6 -1.46
Vega +210,000 +480,000 +290,000 -0.81 17.2 25.04 0.03
Canopus (fourth time) +480,000 +990,000 +480,000 -0.40 346 310 -0.72
Beta Aurigae +990,000 +1,150,000 +1,190,000 -0.40 28.5 82.1 1.9
Delta Scuti +1,150,000 +1,330,000 +1,250,000 -1.84 9.2 187 4.72
Gamma Draconis +1,330,000 +2,030,000 +1,550,000 -1.39 27.7 154 2.36
Upsilon Librae +2,030,000 +2,670,000 +2,290,000 -0.46 30 195 3.6
NR Canis Majoris +2,670,000 +3,050,000 +2,870,000 -0.88 14 280 5.6
Omicron Herculis +3,050,000 +3,870,000 +3,470,000 -0.63 44 346 3.83
Beta Cygni +3,870,000 ... +4,610,000 -0.52 80 390 3.18
9