109 Piscium
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Pisces |
| Right ascension | 01h 44m 55.82s [1] |
| Declination | +20° 04′ 59.3″ [1] |
| Apparent magnitude (V) | 6.292 |
| Characteristics | |
| Spectral type | G5IV |
| U−B color index | 0.23 |
| B−V color index | 0.720 |
| Variable type | none |
| Astrometry | |
| Proper motion (μ) | RA: -44.75 ± 0.61 [1] mas/yr Dec.: -105.35 ± 0.37 [1] mas/yr |
| Parallax (π) | 30.70 ± 0.43 mas[1] |
| Distance | 106 ± 1 ly (32.6 ± 0.5 pc) |
| Absolute magnitude (MV) | 3.72 |
| Details | |
| Mass | 1.15 (± 0.03) M☉ |
| Radius | 1.83 (± 0.08) R☉ |
| Luminosity | 2.97 L☉ |
| Temperature | 5614 (± 80) K |
| Metallicity | [Fe/H]=+0.1 (± 0.06) |
| Rotation | ? |
| Age | 6.9 (± 0.6) ×109 years |
| Other designations | |
HD 10697, HIP 8159, Gl 72, HR 508, BD+19°282 | |
109 Piscium is a yellow subgiant star located about 106 light years away in the constellation Pisces. It has a similar mass to our Sun, and has a higher abundance of iron.
Planetary system
In 1999 an extrasolar planet was detected around this star.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | >6.38 ± 0.53 MJ | 2.16 ± 0.12 | 1076.4 ± 2.4 | 0.1023 ± 0.0096 | — | — |
Popular culture
In the 1983 Star Trek novel The Wounded Sky by Diane Duane, the USS Enterprise intentionally causes 109 Piscium to go supernova by entering warp drive too close to the star, in order to destroy a group of pursuing Klingon vessels. Captain Kirk experiences an uneasy sense that he may "get in trouble with Starfleet" over this arguably rash course of action.
See also
References
- ^ a b c d e van Leeuwen, F. (2007). "HIP 8159". Hipparcos, the New Reduction. Retrieved 2009-12-10.
- ^ Vogt; Marcy, Geoffrey W.; Butler, R. Paul; Apps, Kevin; et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal. 536 (2): 902–914. doi:10.1086/308981. Archived from the original on 2009-04-29. Retrieved 2009-04-09.
{{cite journal}}: Explicit use of et al. in:|author=(help); Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ Butler; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. doi:10.1086/504701.
{{cite journal}}: Explicit use of et al. in:|author=(help)
External links
- "HD 10697". SIMBAD. Retrieved 17 April 2006.
- "Notes for star HD 10697". The Extrasolar Planets Encyclopaedia. Retrieved 17 April 2006.
- "109 Piscium". SolStation. Retrieved 17 April 2006.
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