with regards to the brightest star mentioned earlier in the conversation, how far is it from us?
It is believed to have estimated the distance to Sirius at 27664 times the distance from the Earth to the Sun (about 0.437 light years, translating to a parallax of roughly 7.5 arcseconds).
Sirius
In his 1698 book, "Cosmotheoros", Christiaan Huygens estimated the distance to Sirius at 27664 times the distance from the Earth to the Sun (about 0.437 light years, translating to a parallax of roughly 7.5 arcseconds). There were several unsuccessful attempts to measure the parallax of Sirius: by Jacques Cassini (6 seconds); by some astronomers (including Nevil Maskelyne) using Lacaille's observations made at the Cape of Good Hope (4 seconds); by Piazzi (the same amount); using Lacaille's observations made at Paris, more numerous and certain than those made at the Cape (no sensible parallax); by Bessel (no sensible parallax).
cma (canis majoris) is so bright it is visible near the rising sun but is better known as Canis Major is a constellation which contains Sirius, the brightest star in the night sky how did this bright star gets its name? Its name is derived from the Greek word "Seirios" "glowing" or "scorching". can you name a few more bright stars? Sun, Spica etc can the former be viewed by the naked eye? The brightness of the Sun can cause pain from looking at it with the naked eye; however, doing so for brief periods is not hazardous for normal non-dilated eyes how was this bright star formed? It formed approximately 4.6 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. what are the different parts of its constitution? Core, Radiative zone, Tachocline, Convective zone, Photosphere any satellites used to study more about this body? NASA's Pioneers 6, 7, 8 and 9 ; Helios 1 and 2 probes
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Sirius [SEP] Distance
In his 1698 book, "Cosmotheoros", Christiaan Huygens estimated the distance to Sirius at 27664 times the distance from the Earth to the Sun (about 0.437 light years, translating to a parallax of roughly 7.5 arcseconds). There were several unsuccessful attempts to measure the parallax of Sirius: by Jacques Cassini (6 seconds); by some astronomers (including Nevil Maskelyne) using Lacaille's observations made at the Cape of Good Hope (4 seconds); by Piazzi (the same amount); using Lacaille's observations made at Paris, more numerous and certain than those made at the Cape (no sensible parallax); by Bessel (no sensible parallax). Scottish astronomer Thomas Henderson used his observations made in 1832–1833 and South African astronomer Thomas Maclear's observations made in 1836–1837, to determine that the value of the parallax was 0.23 arcseconds, and error of the parallax was estimated not to exceed a quarter of a second, or as Henderson wrote in 1839, "On the whole we may conclude that the parallax of Sirius is not greater than half a second in space; and that it is probably much less." Astronomers adopted a value of 0.25 arcseconds for much of the 19th century.