HD 74272
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vela[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 4.74[1] |
| Characteristics | |
| Spectral type | A5 II[3] |
| 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: −8.228[2] mas/yr Dec.: +10.051[2] mas/yr |
| Parallax (π) | 1.7639±0.1441 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −4.67[1] |
| Details | |
| Mass | Script error: No such module "val".[4] Template:Solar mass |
| Radius | Script error: No such module "val".[2] Template:Solar radius |
| Luminosity | Script error: No such module "val".[2] Template:Solar luminosity |
| Temperature | Script error: No such module "val".[2] K |
| Rotational velocity (v sin i) | [5] km/s |
| Age | Script error: No such module "val".[4] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| Template:Odlist[6] | |
| Database references | |
| SIMBAD | data |
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HD 74272 is a star in the constellation Vela. It has the Bayer designation n Velorum, while HD 74272 is the identifier from the Henry Draper catalogue. This is a white hued star that is faintly visible to the naked eye with an apparent visual magnitude of 4.74.[1] It is located at a distance of approximately 1,800 light years from the Sun based on parallax.[2] The star is drifting further away with a radial velocity of +17 km/s.[1]
This is an aging, massive bright giant star with a stellar classification of A5 II.[3] It is an estimated 30 million years old with 8.8 times the mass of the Sun.[4] Having exhausted the supply of hydrogen at its core, it has expanded to around 33[2] times the radius of the Sun. The star is radiating 3,287[2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 7,595 K.[2]
References
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