HD 88955
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vela[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 3.85[3] |
| Characteristics | |
| Spectral type | A2 V[3] |
| B−V Template:Engvar | Script error: No such module "val".[1] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: −151.532[2] mas/yr Dec.: +49.171[2] mas/yr |
| Parallax (π) | 32.7054±0.3218 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | 1.39[1] |
| Details | |
| Mass | 2.17[5] Template:Solar mass |
| Radius | 2.11[5] Template:Solar radius |
| Luminosity | 23.24[5] Template:Solar luminosity |
| Surface gravity (log g) | Script error: No such module "val".[6] cgs |
| Temperature | Script error: No such module "val".[6] K |
| Metallicity [Fe/H] | −0.02[7] dex |
| Rotational velocity (v sin i) | Script error: No such module "val".[8] km/s |
| Age | 410[5] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[9] | |
| Database references | |
| SIMBAD | data |
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HD 88955 is a single,[10] white-hued star in the southern constellation of Vela. It can be viewed with the naked eye, having an apparent visual magnitude of 3.85.[3] The distance to HD 88955 can be determined from its annual parallax shift of Script error: No such module "val".,[2] which yields a separation of 100 light years from the Sun. It is moving further from the Earth with a heliocentric radial velocity of +7 km/s.[4] Bayesian analysis suggests HD 88955 is a member of the Argus Association,[11] a group of co-moving stars usually associated with the IC 2391 open cluster.
This is an A-type main-sequence star with a stellar classification of A2 V.[3] It is about 410[5] million years old with a projected rotational velocity of 100 km/s.[8] The star has 2.17[5] times the mass of the Sun and 2.11[5] times the Sun's radius. It is radiating 23[5] times the Sun's luminosity from its photosphere at an effective temperature of 9,451 K.[6] An infrared excess has been detected from HD 88955, which analysis suggests is a Script error: No such module "val". debris disc with a mean temperature of Script error: No such module "val". orbiting the host star at an average distance of Script error: No such module "val"..[12]
References
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- ↑ a b c d e f Template:Cite Gaia DR2
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