Difference between revisions of "Alpha Centauri"
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| + | {{Night Sky | ||
| + | | image = | ||
| + | | designation =Rigil Kentaurus<br/>Alf Cen<br/>Gliese 559A | ||
| + | | rightascension =14<sup>h</sup> 39<sup>m</sup> 36.4940<sup>s</sup><ref name=simbad>{{cite web|url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=Alpha+Centauri+A|title=Alpha Centauri A|accessdate=June 29, 2020|work=Simbad Astronomical Database|publisher=simbad.u-strasbg.fr}}</ref><ref name=hip> | ||
| + | {{cite journal | ||
| + | |last1=Van Leeuwen |first1=F. | ||
| + | |display-authors=3 | ||
| + | |title=Validation of the new Hipparcos reduction. | ||
| + | |journal=stronomy and Astrophysics | ||
| + | |volume=474 | ||
| + | |issue=|page=653-664|date=2007 | ||
| + | |doi=10.1051/0004-6361:20078357 | ||
| + | |bibcode=2007A&A...474..653V | ||
| + | |ref=harv | ||
| + | }} {{arXiv|0708.1752}} | ||
| + | </ref> | ||
| + | | declination =-60° 50′ 02.3737″<ref name=simbad/><ref name=hip/> | ||
| + | | distance =4.32 ly<ref name=universeguide>{{cite web|url=https://www.universeguide.com/star/71683/rigilkentaurus|title=Rigil Kentaurus (Alpha Centauri) Star Facts|accessdate=June 29, 2020|publisher=universeguide.com}}</ref> | ||
| + | | constellation =Centaurus | ||
| + | | type =Star | ||
| + | | dimensions = | ||
| + | | magnitude =Apparent Mag: -0.01<ref name=universeguide/><br/>Absolute Mag: +4.34/+4.39<ref name=universeguide/> | ||
| + | | redshift = | ||
| + | | radvelocity =-21.40 ± 0.76<ref name=simbad/><ref> | ||
| + | {{cite journal | ||
| + | |last1=Valenti |first1=Jeff A. | ||
| + | |last2=Fischer |first2=Debra A. | ||
| + | |display-authors=3 | ||
| + | |title=Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs | ||
| + | |journal=The Astrophysical Journal Supplement Series | ||
| + | |volume=159 | ||
| + | |issue=1|page=141-166|date=2005 | ||
| + | |doi=10.1086/430500 | ||
| + | |bibcode=2005ApJS..159..141V | ||
| + | |ref=harv | ||
| + | }} | ||
| + | </ref> | ||
| + | | propmotion =RA: -3679.25 mas/yr<ref name=simbad/><ref name=hip/<br/>Dec: 473.67 mas/yr<ref name=simbad/><ref name=hip/> | ||
| + | | parallax =743 ± 1.3 mas<ref name=simbad/><ref> | ||
| + | {{cite journal | ||
| + | |last1=Pourbaix |first1=Dimitri | ||
| + | |last2=Boffin |first2=Henri M. J. | ||
| + | |display-authors=3 | ||
| + | |title=Parallax and masses of α Centauri revisited. | ||
| + | |journal=Astronomy and Astrophysics | ||
| + | |volume=586A | ||
| + | |issue=|page=90-90|date=2016 | ||
| + | |doi=10.1051/0004-6361/201527859 | ||
| + | |bibcode=2016A&A...586A..90P | ||
| + | |ref=harv | ||
| + | }} {{arXiv|1601.01636 }} | ||
| + | </ref> | ||
| + | }} | ||
'''Alpha Centauri''' is a star in the constellation Centaurus and the third brightest in the sky. Alpha Centauri is a double star system consisting of Alpha Centauri A and Alpha Centauri B. Alpha Centauri is between 4 and 5 [[light year]]s from the [[Solar System]]. [[Proxima Centauri]] is slightly closer to the [[Solar System]] than these 2 stars. | '''Alpha Centauri''' is a star in the constellation Centaurus and the third brightest in the sky. Alpha Centauri is a double star system consisting of Alpha Centauri A and Alpha Centauri B. Alpha Centauri is between 4 and 5 [[light year]]s from the [[Solar System]]. [[Proxima Centauri]] is slightly closer to the [[Solar System]] than these 2 stars. | ||
Revision as of 17:47, 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][5]Dec: 473.67 mas/yr[1][2] |
| Parallax | 743 ± 1.3 mas[1][6] |
Alpha Centauri is a star in the constellation Centaurus and the third brightest in the sky. 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.
Sources
The New American Desk Encyclopedia, Penguin Group, 1989
- ↑ 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 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.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedhip/<br - ↑ 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