HD 222109
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | 5.80[3] (6.08 + 7.38)[4] |
| Characteristics | |
| Spectral type | B8V[5] |
| U−B Template:Engvar | -0.32[3] |
| B−V Template:Engvar | -0.06[3] |
| Astrometry | |
| Radial velocity (Rv) | Script error: No such module "val".[6] 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) | 4.04±0.52 mas[2] |
| Distance | approx. Template:Rnd ly (approx. Template:Rnd pc) |
| Absolute magnitude (MV) | −1.12[1] |
| Orbit[7] | |
| Period (P) | 351.22 yr |
| Semi-major axis (a) | 0.41″ |
| Eccentricity (e) | 0.39 |
| Inclination (i) | 40.3° |
| Longitude of the node (Ω) | 157.1° |
| Periastron epoch (T) | B 2103.29 |
| Argument of periastron (ω) (secondary) | 0.0° |
| Details | |
| Mass | 2.9[8] Template:Solar mass |
| Surface gravity (log g) | Script error: No such module "val".[9] cgs |
| Temperature | Script error: No such module "val".[9] K |
| Rotational velocity (v sin i) | Script error: No such module "val".[9] km/s |
| Age | 54[8] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| BD+43°4508, HD 222109, HIP 116582, HR 8962, SAO 53202 | |
| Database references | |
| SIMBAD | data |
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HD 222109 is a binary star system located in the northern constellation of Andromeda. It has a combined apparent visual magnitude of 5.80,[3] which allows it to be visible to the naked eye as a single star. The system has a combined spectral classification of B8V.[5] It is situated at a distance of approximately 800 light years from the Solar System,[2] and the two stars orbit each other with a period of 351.22 years. They are separated by a distance of 0.41[[arc second|Template:Pprime]] and have an orbital eccentricity of 0.39.[4] Individually, the stars have apparent magnitudes of 6.08 and 7.38, respectively.[4]
References
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- ↑ a b Template:Cite XHIP
- ↑ a b c d e f Script error: No such module "citation/CS1".
- ↑ a b c d Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "citation/CS1".
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- ↑ a b Script error: No such module "Citation/CS1".
- ↑ a b c Script error: No such module "citation/CS1".
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