41 Arietis
Template:Location mark Location of 41 Arietis (circled) | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aries |
| Right ascension | Template:RA[1] |
| Declination | Template:DEC[1] |
| Apparent magnitude (V) | 3.63[2] |
| Characteristics | |
| Spectral type | B8 Vn[3] |
| U−B Template:Engvar | –0.38[2] |
| B−V Template:Engvar | –0.10[2] |
| Astrometry | |
| Radial velocity (Rv) | +4[4] km/s |
| Proper motion (μ) | RA: +66.81[1] mas/yr Dec.: –116.52[1] mas/yr |
| Parallax (π) | 19.69±0.19 mas[1] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Details | |
| Mass | Script error: No such module "val".[5] Template:Solar mass |
| Luminosity | 160[6] Template:Solar luminosity |
| Temperature | Script error: No such module "val".[6] K |
| Rotational velocity (v sin i) | 175[7] km/s |
| Age | Script error: No such module "val".[5] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Bharani, c Arietis, ADS 2159, BD+26 471, FK5 100, HD 17573, HIP 13209, HR 838, SAO 75596, WDS 02500+2716.[8] | |
| Database references | |
| SIMBAD | data |
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41 Arietis (abbreviated 41 Ari) is a triple star system in the northern constellation of Aries. With an apparent visual magnitude of 3.63,[2] this system is readily visible to the naked eye. It has an annual parallax shift of 19.69 mas,[1] which indicates it is at a distance of Script error: No such module "convert". from the Sun.
The system consists of a binary pair,[9] designated 41 Arietis A, together with a third companion star, 41 Arietis D. (41 Arietis B and C form optical pairs with A, but are not physically related.[10]) The components of A are themselves designated 41 Arietis Aa (formally named Bharani Template:IPAc-en)[11] and Ab.
Nomenclature
41 Arietis is the system's Flamsteed designation. It does not possess a Greek-letter Bayer designation, since this system was once part of the now-obsolete constellation Musca Borealis, but is sometimes designated c Arietis. The designations of the two constituents as 41 Arietis A and D, and those of A's components - 41 Arietis Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).[12]
Nicolas-Louis de Lacaille called the star Līliī Austrīnā (Template:IPAc-en) 'southern of Lilium' (in Latin) in 1757,[13][14] as a star of the now-defunct constellation of Lilium (the Lily). To him 39 Arietis was Līliī Boreā, 'northern of Lilium'.
In Hindu astronomy, Bharani (भरणी bharaṇī, Script error: No such module "IPA".) is the second nakshatra, or lunar mansion corresponding to 35, 39 and 41 Arietis. In 2016, the IAU organized a Working Group on Star Names (WGSN)[15] to catalog and standardize proper names for stars. The WGSN decided to attribute proper names to individual stars rather than entire multiple systems.[16] It approved the name Bharani for the component 41 Arietis Aa on 30 June 2017 and it is now so included in the List of IAU-approved Star Names.[11]
In Chinese, Script error: No such module "Lang". (Script error: No such module "Lang".), meaning Stomach (asterism), refers to an asterism consisting of 41, 35 and 39 Arietis.[17] Consequently, the Chinese name for 41 Arietis itself is Script error: No such module "Lang". (Script error: No such module "Lang"., Template:Langx.)[18]
In Avestan, the star was known as Upa-paoiri, and it was associated with one of the yazatas.[19]
Properties
The primary component is a B-type main sequence star with a stellar classification of B8 Vn.[3] The suffix 'n' indicates 'nebulous' absorption lines in the star's spectrum caused by the Doppler effect of rapid rotation. It has a projected rotational velocity of 175 km/s.[7] This is creating an equatorial bulge that is 12% larger than the star's polar radius.[20] It is a candidate member of the AB Doradus moving group[6] and has an orbiting companion at an angular separation of 0.3 arcseconds.[9]
References
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- ↑ a b c d Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ Template:Cite simbad
- ↑ a b Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ Template:In lang 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, Template:ISBN.
- ↑ Template:In lang 白羊座
- ↑ ANGELS:Zoroastrian
- ↑ Script error: No such module "citation/CS1".
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