54 Ceti

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Template:Short description

54 Ceti
File:Local 54 cet.png
Location of 54 Ceti (HD 11257) near the constellation boundary of Aries (pink). Nearby are the constellations of Pisces (blue) and Cetus (green).
Observation data
Epoch J2000      Equinox J2000
Constellation Aries[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 5.94[3]
Characteristics
Spectral type F2 Vw[4]
U−B Template:Engvar –0.03[3]
B−V Template:Engvar +0.30[3]
R−I Template:Engvar 0.17
Astrometry
Radial velocity (Rv)+11.1[5] km/s
Proper motion (μ) RA: –69.464[2] mas/yr
Dec.: –27.522[2] mas/yr
Parallax (π)23.7942±0.1026 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)2.80[1]
Details
Mass1.48[6] Template:Solar mass
RadiusScript error: No such module "val".[2] Template:Solar radius
LuminosityScript error: No such module "val".[2] Template:Solar luminosity
Surface gravity (log g)4.50[4] cgs
Temperature7,099[4] K
Metallicity [Fe/H]–0.20[4] dex
Rotational velocity (v sin i)29[7] km/s
Age582[6] Myr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[8]
Database references
SIMBADdata

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54 Ceti is an older Flamsteed designation[9] for a star that is now located within the constellation boundaries of Aries,[10] the Ram. In the present day it is known by star catalogue identifiers like HD 11257 or HR 534.[8] At an apparent visual magnitude of 5.94,[3] it can be seen with the naked eye. The distance to this star, as determined using parallax measurements made during the Hipparcos mission, is approximately Script error: No such module "convert"., give or take a 6 light-year margin of error.[11] It is located near the ecliptic and hence is subject to occasional occultation by the Moon.[12]

This is an F-type main sequence star with a stellar classification of F2 Vw,[4] where the 'w' indicates weak absorption lines in the spectrum. The star is around 582[6] million years old with a projected rotational velocity of 29 km/s.[7] It has 1.5[6] times the mass of the Sun and 1.6[2] times the Sun's radius. The star is radiating six[2] times the luminosity of the Sun from its photosphere at an effective temperature of 7,099 K.[4] It is a candidate member of the Ursa Major Moving Group, which has an estimated age of 500 ± 100 million years.[13]

References

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  1. ↑ a b Template:Cite XHIP
  2. ↑ a b c d e f g h i Template:Cite DR2
  3. ↑ a b c d Script error: No such module "Citation/CS1".
  4. ↑ a b c d e f Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ a b c d Script error: No such module "citation/CS1".
  7. ↑ a b Script error: No such module "citation/CS1".
  8. ↑ a b Template:Cite simbad
  9. ↑ Script error: No such module "citation/CS1". See the Online Data entry for HR 534.
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ Script error: No such module "citation/CS1".
  13. ↑ Script error: No such module "citation/CS1".

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External links

Template:Stars of Aries

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