12 Andromedae

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Template:Short description

12 Andromedae
Template:Location mark
Location of 12 Andromedae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 5.87[2]
Characteristics
Spectral type F5 V[2][3]
B−V Template:Engvar 0.45[4]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[5] km/s
Proper motion (μ) RA: Script error: No such module "val".[1] mas/yr
Dec.: Script error: No such module "val".[1] mas/yr
Parallax (π)23.7806±0.0361 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)2.66[3]
Details
Mass1.25[6] Template:Solar mass
Luminosity7.38[3] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[6] cgs
TemperatureScript error: No such module "val".[6] K
Metallicity [Fe/H]+0.00[7] dex
Rotational velocity (v sin i)12[4] km/s
Age2.548[6] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[8]
Database references
SIMBADdata

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12 Andromedae is a single[2] star in the northern constellation of Andromeda. The designation is from the star catalogue of English astronomer John Flamsteed, first published in 1712. It has an apparent visual magnitude of 5.87,[2] which indicates it is just visible to the naked eye under good seeing conditions. An annual parallax shift of 23.7806[1] mas provides a distance estimate of 137 light years. The star is moving closer to the Sun with a radial velocity of −10.5 km/s.[5]

This is an ordinary F-type main-sequence star with a stellar classification of F5 V.[2] It is about 2.5[6] billion years old and is spinning with a projected rotational velocity of 12 km/s.[4] The abundance of iron is similar to that in the Sun.[7] The star has an estimated 1.25[6] times the mass of the Sun and is radiating just over 7[3] times the Sun's luminosity from its photosphere at an effective temperature of around 6,454 K.[6]

References

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  1. ↑ a b c d e f Template:Cite Gaia EDR3
  2. ↑ a b c d e Script error: No such module "citation/CS1".
  3. ↑ a b c d Script error: No such module "citation/CS1".
  4. ↑ a b c Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ a b c d e f g Script error: No such module "citation/CS1".
  7. ↑ a b Script error: No such module "citation/CS1".
  8. ↑ Template:Cite simbad

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External links

Template:Stars of Andromeda

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