Nu Arietis

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Template:Short description

Nu Arietis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Aries[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 5.43[3]
Characteristics
Spectral type A7 V[4]
U−B Template:Engvar +0.13[3]
B−V Template:Engvar +0.168±0.004[1]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[5] km/s
Proper motion (μ) RA: −4.203 mas/yr[2]
Dec.: −15.103 mas/yr[2]
Parallax (π)12.0933±0.3264 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)+0.40[1]
Details
ν Ari A
Mass1.89±0.29[6] Template:Solar mass
Radius3.28±0.13[6] Template:Solar radius
Luminosity37.6±2.3[6] Template:Solar luminosity
Surface gravity (log g)3.68±0.08[6] cgs
Temperature7,889±123[6] K
Rotational velocity (v sin i)133[7] km/s
AgeScript error: No such module "val".[8] Myr
ν Ari B
MassScript error: No such module "val".[8] Template:Solar mass
TemperatureScript error: No such module "val".[8] K
Metallicity [Fe/H]0.0[8] dex
Rotational velocity (v sin i)10[8] km/s
Other designations
Template:Odlist[9]
Database references
SIMBADdata

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Nu Arietis is a white-hued star in the northern constellation of Aries. Its name is a Bayer designation that is Latinized from ν Arietis, and abbreviated Nu Ari or ν Ari. This star is faintly visible to the naked eye with an apparent visual magnitude of +5.43.[3] Based upon an annual parallax shift of Script error: No such module "val". as seen from Earth,[2] it is located approximately 270 light years from the Sun. It is moving further away with a radial velocity of 8 km/s.[5]

This is an A-type main sequence star with a stellar classification of A7 V.[4] Nu Arietis has an estimated 1.9 times the mass of the Sun and about 3.3 times the Sun's radius. The star is radiating 37.6 times the Sun's luminosity from its photosphere at an effective temperature of around 7,889 K.[6] It is roughly 621[8] million years old and is spinning with a projected rotational velocity of 133 km/s.[7]

A close companion was discovered in 2016 using the direct spectral detection method. This object has the same mass as the Sun and an effective temperature of 5,551 K.[8]

References

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  1. ↑ a b c Template:Cite XHIP
  2. ↑ a b c d e Template:Cite Gaia DR3
  3. ↑ a b c Script error: No such module "citation/CS1".
  4. ↑ a b Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b c d e f Script error: No such module "citation/CS1".
  7. ↑ a b Script error: No such module "citation/CS1".
  8. ↑ a b c d e f g Script error: No such module "citation/CS1".
  9. ↑ Template:Cite simbad

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External links

Template:Stars of Aries

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