79 Ceti
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| Observation data Epoch J2000.0 |
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|---|---|---|
| Constellation (pronunciation) |
Cetus | |
| Right ascension | 02h 35m 19.9283s | |
| Declination | -03° 33′ 38.167″ | |
| Apparent magnitude (V) | +6.78 | |
| Characteristics | ||
| Spectral type | G5IV | |
| U-B color index | ? | |
| B-V color index | ? | |
| Variable type | none | |
| Astrometry | ||
| Radial velocity (Rv) | -53 km/s | |
| Proper motion (μ) | RA: -156.89 mas/yr Dec.: -437.07 mas/yr |
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| Parallax (π) | 27.85 ± 1.39 mas | |
| Distance | 117.1 ly (35.91 pc) | |
| Absolute magnitude (MV) | 4.00 | |
| Details | ||
| Mass | 1 M☉ | |
| Radius | 1.57 R☉ | |
| Luminosity | 2.16 L☉ | |
| Temperature | 5770 K | |
| Metallicity | 1.65 × Solar | |
| Rotation | ? | |
| Age | ? years | |
| Planet | ||
| Companion |
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| Other designations | ||
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HD 16141, GJ 9085, HIP 12048
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79 Ceti (also known as HD 16141) is a yellow subgiant star approximately 117 light-years away in the constellation Cetus. It has stopped hydrogen fusion in its core, this implies an age much higher than our Sun's 4.5 billion years. Eventually the outer layers of the star will expand and cool and the star will become a red giant. Currently 79 Ceti has a luminosity twice that of the Sun.
As of 2000, an extrasolar planet, designated 79 Ceti b is known to orbit 79 Ceti.
[edit] See also
[edit] References
- Marcy et al. (2000). "Sub-Saturn Planetary Candidates of HD 16141 and HD 46375". The Astrophysical Journal 536 (1): L43 – L46. doi:.
[edit] External links
- SIMBAD: HD 16141 -- High proper-motion Star
- SolStation: 79 Ceti
- Extrasolar Planets Encyclopaedia: HD 16141
- Extrasolar Visions: 79 Ceti
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