Quote:
Originally Posted by dohbot
is proxima centauri always 4.4 light years away from the sun? does it get any further or nearer than that? and how about it's position in relation to the sun(east/west/inclination)?
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Its distance will not change noticeably any time soon.
As the earth orbits sun, since proxima is near to the sun, it would change its coordinates on the celestial sphere, its RA and declination; in a repetitive 12 month parallax cycle. but since it's about 1 parsec distant, It would only change coordinates by 1 second of arc in that cycle.