HD 19275

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Template:Short description

HD 19275
Template:Location mark
Location of HD 19275 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cassiopeia[1]
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 4.85[1]
Characteristics
Spectral type A2Vnn[3]
U−B Template:Engvar +0.05
B−V Template:Engvar Script error: No such module "val".[1]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[1] km/s
Proper motion (μ) RA: +13.895[2] mas/yr
Dec.: −86.650[2] mas/yr
Parallax (π)19.9554±0.1695 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)1.32[1]
Details
MassScript error: No such module "val".[4] Template:Solar mass
Radius2.7[5] Template:Solar radius
Luminosity27.27[1] Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val".[4] cgs
TemperatureScript error: No such module "val".[4] K
Metallicity [Fe/H]Script error: No such module "val".[6] dex
Rotational velocity (v sin i)250[7] km/s
AgeScript error: No such module "val".[4] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[8]
Database references
SIMBADdata

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HD 19275 is a single[9] star in the northern constellation of Cassiopeia. It has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.85.[1] The distance to HD 19275 is 163 light years as determined using parallax measurements.[2] It is drifting further away from the Sun with a radial velocity of around 12 km/s.[1]

This object is an A-type main-sequence star with a stellar classification of A2Vnn.[3] The 'nn' suffix indicates "nebulous" (broad) absorption lines in the spectrum due to rapid rotation. It is spinning with a projected rotational velocity of 250 km/s, which is giving the star an equatorial bulge that is estimated to be 15% larger than the polar radius.[7] The object is an estimated 71[4] million years old with 1.8[4] times the mass of the Sun and about 2.7[5] times the Sun's radius. It is radiating 27[1] times the luminosity of the Sun from its photosphere at an effective temperature of 8,875 K.[4]

References

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  1. ↑ a b c d e f g h i Script error: No such module "citation/CS1".
  2. ↑ a b c d e f Template:Cite Gaia DR2
  3. ↑ a b Script error: No such module "citation/CS1".
  4. ↑ a b c d e f g Script error: No such module "citation/CS1".
  5. ↑ a b Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ a b Script error: No such module "citation/CS1".
  8. ↑ Template:Cite simbad
  9. ↑ Script error: No such module "citation/CS1".

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Template:Stars of Cassiopeia

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