Difference between revisions of "Alpha Centauri"
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| − | | propmotion =RA: -3679.25 mas/yr<ref name=simbad/><ref name=hip/<br/>Dec: 473.67 mas/yr<ref name=simbad/><ref name=hip/> | + | | propmotion =RA: -3679.25 mas/yr<ref name=simbad/><ref name=hip/><br/>Dec: 473.67 mas/yr<ref name=simbad/><ref name=hip/> |
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Revision as of 17:49, June 29, 2020
| Alpha Centauri | |
|---|---|
| Observational Data | |
| Designation | Rigil Kentaurus Alf Cen Gliese 559A |
| Right ascension | 14h 39m 36.4940s[1][2] |
| Declination | -60° 50′ 02.3737″[1][2] |
| Constellation | Centaurus |
| Type of object | Star |
| Magnitude | Apparent Mag: -0.01[3] Absolute Mag: +4.34/+4.39[3] |
| Astrometry | |
| Distance from Earth | 4.32 ly[3] |
| Radial velocity | -21.40 ± 0.76[1][4] |
| Proper motion | RA: -3679.25 mas/yr[1][2] Dec: 473.67 mas/yr[1][2] |
| Parallax | 743 ± 1.3 mas[1][5] |
Alpha Centauri is a star in the constellation Centaurus and the third brightest in the sky.[6] Alpha Centauri is a double star system consisting of Alpha Centauri A and Alpha Centauri B. Alpha Centauri is between 4 and 5 light years from the Solar System. Proxima Centauri is slightly closer to the Solar System than these 2 stars.
It was popular in science fiction and was the destination of the space traveling family in the TV show from the 1960s Lost in Space.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Alpha Centauri A. Simbad Astronomical Database. simbad.u-strasbg.fr. Retrieved on June 29, 2020.
- ↑ 2.0 2.1 2.2 2.3 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction.". stronomy and Astrophysics 474: 653-664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V. arXiv:0708.1752
- ↑ 3.0 3.1 3.2 Rigil Kentaurus (Alpha Centauri) Star Facts. universeguide.com. Retrieved on June 29, 2020.
- ↑ Valenti, Jeff A.; Fischer, Debra A. (2005). "Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs". The Astrophysical Journal Supplement Series 159 (1): 141-166. doi:10.1086/430500. Bibcode: 2005ApJS..159..141V.
- ↑ Pourbaix, Dimitri; Boffin, Henri M. J. (2016). "Parallax and masses of α Centauri revisited.". Astronomy and Astrophysics 586A: 90-90. doi:10.1051/0004-6361/201527859. Bibcode: 2016A&A...586A..90P. arXiv:1601.01636
- ↑ The New American Desk Encyclopedia, Penguin Group, 1989