Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Cassiopeia |
Right ascension | 03h 11m 56.27016s [1] |
Declination | +74° 23′ 37.1670″ [1] |
Apparent magnitude (V) | 4.85 [2] |
Characteristics | |
Spectral type | A2Vnn [3] |
U−B color index | +0.05 |
B−V color index | +0.035±0.006 [2] |
Astrometry | |
Radial velocity (Rv) | 11.9±3.1 [2] km/s |
Proper motion (μ) |
RA: +13.895
[1]
mas/
yr Dec.: −86.650 [1] mas/ yr |
Parallax (π) | 19.9554 ± 0.1695 mas [1] |
Distance | 163 ± 1
ly (50.1 ± 0.4 pc) |
Absolute magnitude (MV) | 1.32 [2] |
Details | |
Mass | 1.80+0.32 −0.29 [4] M☉ |
Radius | 2.7 [5] R☉ |
Luminosity | 27.27 [2] L☉ |
Surface gravity (log g) | 4.20±0.25 [4] cgs |
Temperature | 8,875±1,000 [4] K |
Metallicity [Fe/H] | −0.11±0.26 [6] dex |
Rotational velocity (v sin i) | 250 [7] km/s |
Age | 71+317 −60 [4] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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. [2] The distance to HD 19275 is 163 light years as determined using parallax measurements. [1] It is drifting further away from the Sun with a radial velocity of around 12 km/s. [2]
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 [2] times the luminosity of the Sun from its photosphere at an effective temperature of 8,875 K. [4]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Cassiopeia |
Right ascension | 03h 11m 56.27016s [1] |
Declination | +74° 23′ 37.1670″ [1] |
Apparent magnitude (V) | 4.85 [2] |
Characteristics | |
Spectral type | A2Vnn [3] |
U−B color index | +0.05 |
B−V color index | +0.035±0.006 [2] |
Astrometry | |
Radial velocity (Rv) | 11.9±3.1 [2] km/s |
Proper motion (μ) |
RA: +13.895
[1]
mas/
yr Dec.: −86.650 [1] mas/ yr |
Parallax (π) | 19.9554 ± 0.1695 mas [1] |
Distance | 163 ± 1
ly (50.1 ± 0.4 pc) |
Absolute magnitude (MV) | 1.32 [2] |
Details | |
Mass | 1.80+0.32 −0.29 [4] M☉ |
Radius | 2.7 [5] R☉ |
Luminosity | 27.27 [2] L☉ |
Surface gravity (log g) | 4.20±0.25 [4] cgs |
Temperature | 8,875±1,000 [4] K |
Metallicity [Fe/H] | −0.11±0.26 [6] dex |
Rotational velocity (v sin i) | 250 [7] km/s |
Age | 71+317 −60 [4] Gyr |
Other designations | |
Database references | |
SIMBAD | data |
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. [2] The distance to HD 19275 is 163 light years as determined using parallax measurements. [1] It is drifting further away from the Sun with a radial velocity of around 12 km/s. [2]
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 [2] times the luminosity of the Sun from its photosphere at an effective temperature of 8,875 K. [4]