| 释义 |
- References
{{About|"a Centauri"|"A Centauri"|A Centauri|"α Centauri"|Alpha Centauri}}{{Starbox begin
| name = HD 125823
}}{{Starbox observe
| epoch = J2000.0
| constell = Centaurus
| ra = {{RA|14|23|02.24}}[1]
| dec = {{DEC|−39|30|42.5}}[1]
| appmag_v = +4.41
}}{{Starbox character
| class = B7IIIp
| b-v = −0.18
| u-b = −0.75
| variable = SX Ari
}}{{Starbox astrometry
| radial_v = +8
| prop_mo_ra = -24.15 ± 0.13[1]
| prop_mo_dec = -21.90 ± 0.13[1]
| parallax = 7.13
| p_error = 0.16
| parallax_footnote = [1]
| absmag_v = −1.27
}}{{Starbox detail
| mass = {{nowrap|5.69 ± 0.30}}
| radius = {{nowrap|3.7 ± 0.5}}
| luminosity = 1,175
| temperature = 17,700
| metal_fe =
| gravity = {{nowrap|4.20 ± 0.12}}
| rotational_velocity =
| rotation = 8.817744 days
| age_myr =
}}{{Starbox catalog
| names = V761 Centauri, a Centauri, CD−38 9329, HD 125823, HIP 70300, HR 5378, SAO 205497.
}}{{Starbox reference
| Simbad = HD+125823
}}{{Starbox end}}HD 125823, also known as V761 Centauri or a Centauri, is a star in the constellation Centaurus. It is a blue-white B-type giant with a mean apparent magnitude of +4.41. It is approximately 460 light years from Earth. It is classified as an SX Arietis type variable star and its brightness varies from magnitude +4.38 to +4.43 with a period of 8.82 days. References1. ^1 2 3 4 5 {{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | date=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }} Vizier catalog entry
}}{{Stars of Centaurus}}{{Var-star-stub}} 9 : Bayer objects|B-type giants|Centaurus (constellation)|SX Arietis variables|Objects with variable star designations|Henry Draper Catalogue objects|HR objects|Hipparcos objects|Durchmusterung objects |