|
Adopted distance estimates
Object | Parallax, mas | Distance, pc | Distance, ly | Distance, Pm | Source | ||
---|---|---|---|---|---|---|---|
Systems with a G-type main-sequence star (yellow dwarf) as primary member. | |||||||
Sun | 0 | 0 | 0 | The distances are measured from the Sun (or from Earth — difference of positions of Sun and Earth is too small compared with interstellar distances), and distance from Sun to Sun is 0. | |||
Alpha Centauri AB | 747.1±1.2 | 1.3385+0.0022 −0.0021 |
4.366±0.007 | 41.3±0.07 | Söderhjelm (1999)[1] | ||
Alpha Centauri C | 768.7±0.3 | 1.3009±0.0005 | 4.243±0.0017 | 40.142±0.016 | Benedict et al. (1999)[2] | ||
For other distance estimates see articles on these objects. |
See also
References
- ^ Söderhjelm, Staffan (1999). "HIP 71683". Visual binary orbits and masses post Hipparcos. Retrieved 2014-05-09.
- ^ Benedict, G. Fritz; McArthur, Barbara; Chappell, D. W.; Nelan, E.; Jefferys, W. H.; Van Altena, W.; Lee, J.; Cornell, D.; Shelus, P. J.; Hemenway, P. D.; Franz, Otto G.; Wasserman, L. H.; Duncombe, R. L.; Story, D.; Whipple, A. L.; Fredrick, L. W. (1999). "Interferometric Astrometry of Proxima Centauri and Barnard's Star Using HUBBLE SPACE TELESCOPE Fine Guidance Sensor 3: Detection Limits for Substellar Companions". The Astronomical Journal 118 (2): 1086–1100. arXiv:astro-ph/9905318. Bibcode:1999AJ....118.1086B. doi:10.1086/300975.