HD 1185

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Template:Short description

HD 1185
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda[1]
A
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 6.150[3]
B
Right ascension Template:RA[4]
Declination Template:DEC[4]
Apparent magnitude (V) 9.76[5]
Characteristics
A
Evolutionary stage main sequence[2]
Spectral type A2VpSi[6]
U−B Template:Engvar 0.03[7]
B−V Template:Engvar 0.05[7]
Astrometry
A
Radial velocity (Rv)Script error: No such module "val".[8] km/s
Proper motion (μ) RA: +35.421[2] mas/yr
Dec.: −23.037[2] mas/yr
Parallax (π)10.2349±0.0329 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
B
Radial velocity (Rv)Script error: No such module "val".[4] km/s
Proper motion (μ) RA: +34.310[4] mas/yr
Dec.: −21.927[4] mas/yr
Parallax (π)10.1971±0.0157 mas[4]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Details
A
Mass2.4[2] Template:Solar mass
Radius2.1[2] Template:Solar radius
Luminosity38[2] Template:Solar luminosity
Surface gravity (log g)4.02[2] cgs
Temperature9,103[9] K
Metallicity [Fe/H]−0.11[9] dex
Rotational velocity (v sin i)128[10] km/s
Age311[2] Myr
B
Mass1.0[4] Template:Solar mass
Radius0.90[4] Template:Solar radius
Luminosity0.76[4] Template:Solar luminosity
Surface gravity (log g)4.50[4] cgs
Temperature5,712[9] K
Metallicity [Fe/H]−0.26[9] dex
Age224[4] Myr
Other designations
Template:Odlist[11]
Database references
SIMBADdata

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HD 1185 is a double star[12] in the northern constellation of Andromeda. The primary, with an apparent magnitude of 6.15, is a white main-sequence star of spectral type A2VpSi,[6] indicating it has stronger silicon absorption lines than usual, thus making it also an Ap star.[7] The secondary companion, which is 9.08 arcseconds away, is not visible to the naked eye at an apparent magnitude of 9.76. It shares common proper motion and parallax with the primary star[11] but orbital parameters are still unknown.

References

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  1. ↑ Template:Cite constellation
  2. ↑ a b c d e f g h i j k Template:Cite Gaia DR3
  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ a b c d e f g h i j k Template:Cite Gaia DR3
  5. ↑ Script error: No such module "Citation/CS1".
  6. ↑ a b Script error: No such module "Citation/CS1".
  7. ↑ a b c Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "citation/CS1".
  9. ↑ a b c d Script error: No such module "Citation/CS1".
  10. ↑ Script error: No such module "Citation/CS1". Vizier catalog entry
  11. ↑ a b Template:Cite simbad
  12. ↑ Script error: No such module "Citation/CS1".

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External links

Template:Stars of Andromeda

Template:Asbox Template:Asbox

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