HD 72108
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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) | +5.33Script error: No such module "Unsubst". |
| Characteristics | |
| Spectral type | B2IV + B2IV[3] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[4] km/s |
| Proper motion (μ) | RA: Script error: No such module "val".[2] mas/yr Dec.: Script error: No such module "val".[2] mas/yr |
| Parallax (π) | 1.53±0.34 mas[2] |
| Distance | approx. Template:Rnd ly (approx. Template:Rnd pc) |
| Absolute magnitude (MV) | −1.06Script error: No such module "Unsubst". |
| Orbit[5] | |
| Primary | HD 72018 Aa |
| Companion | HD 72018 Ab |
| Period (P) | Script error: No such module "val". yr |
| Semi-major axis (a) | Script error: No such module "val".″ |
| Eccentricity (e) | Script error: No such module "val". |
| Inclination (i) | Script error: No such module "val".° |
| Longitude of the node (Ω) | Script error: No such module "val".° |
| Periastron epoch (T) | Script error: No such module "val". |
| Argument of periastron (ω) (secondary) | Script error: No such module "val".° |
| Details | |
| HD 72018 Aa | |
| Mass | Script error: No such module "val".[5] Template:Solar mass |
| HD 72018 Ab | |
| Mass | Script error: No such module "val".[5] Template:Solar mass |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| HR 3358, CD−47°4004, HIP 41616, SAO 219985, WDS J08291-4756AB[6] | |
| Database references | |
| SIMBAD | data |
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HD 72108 (A Vel, A Velorum) is a star system in the constellation Vela. It is approximately 1640 light years from Earth.
The primary component, HD 72108 A, is a blue-white B-type subgiant with an apparent magnitude of +5.33. It is a spectroscopic binary, whose components are separated by 0.176 arcseconds. At a distance of 4 arcseconds away is the third component, the magnitude +7.7 HD 72108 B. The fourth component, HD 72108 C has an apparent magnitude of +9.3, and is 19 arcseconds from the primary.
References
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- ↑ Template:Cite constellation
- ↑ a b c d e Script error: No such module "Citation/CS1". Vizier catalog entry
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