109 Piscium

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109 Piscium

Observation data Epoch J2000.0
Constellation (pronunciation)	Pisces
Right ascension	01h 44m 55.8246s
Declination	+20° 04′ 59.338″
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: -45.05 mas/yr Dec.: -105.39 mas/yr
Parallax (π)	30.71 ± 0.81 mas
Distance	106 ly (30.6 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) Giga- years
Planet
Companion	b
Mass (MJ)	>6.38
Orbital period (days)	1076.4
Semimajor axis (AU)	2.16
Eccentricity	0.1023
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.

In 1999 an extrasolar planet was detected around this star.

Contents 1 Popular Culture 2 References 3 See also 4 External links

[edit] 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.

[edit] References

• Vogt et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal 536 (2): 902 – 914. doi:10.1086/308981. 

[edit] See also

• 109 Piscium b
• 54 Piscium
• List of stars with confirmed extrasolar planets

[edit] External links

• HD 10697. SIMBAD. Retrieved on 17 April 2006.
• Notes for star HD 10697. The Extrasolar Planets Encyclopaedia. Retrieved on 17 April 2006.
• 109 Piscium. SolStation. Retrieved on 17 April 2006.