109 Piscium b

109 Piscium b

Planetbox begin
name=109 Piscium b [ cite journal | url=http://www.journals.uchicago.edu/doi/abs/10.1086/504701 | author=Butler "et al." | title=Catalog of Nearby Exoplanets | journal=The Astrophysical Journal | volume=646 | issue=1 | pages=505 – 522 | year=2006 | doi=10.1086/504701 ( [http://xxx.lanl.gov/abs/astro-ph?papernum=0607493 web Preprint] ) ]
Planetbox orbit
semimajor=2.16±0.12
period=1076.4±2.4
eccentricity=0.1023±0.0096
ang_dist=65.418
long_peri=108.9±8.2
t_peri=2,450,396±29
semi-amp=115±1.5
Planetbox character
mass=>6.38±0.53
Planetbox discovery
discovery_date=November 14, 1999
discovery_site=Keck Observatory
discoverers=Vogt et al.
discovery_method=Radial velocity
discovery_status=Published

109 Piscium b (aka HD 10697 b) is a long-period extrasolar planet discovered in orbit around 109 Piscium. It is at least 6.38 times the mass of Jupiter and is likely to be a gas giant. As typical for long-period planets discovered around other stars, it has an orbital eccentricity greater than that of Jupiter.

The discoverers estimate its effective temperature as 264 K from solar heating, but it could be at least 10-20 K warmer because of internal heating [ cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/308981 | author=Vogt "et al." | title=Six New Planets from the Keck Precision Velocity Survey | journal=The Astrophysical Journal | year=2000 | volume=536 | issue=2 | pages=902 – 914 | doi=10.1086/308981 ] .

Preliminary astrometric measurements suggested that the orbital inclination is 170.3° [cite journal | url=http://www.journals.uchicago.edu/doi/full/10.1086/318927 | author=Han "et al." | title=Preliminary astrometric masses for proposed extrasolar planetary companions | journal=The Astrophysical Journal | volume=548| issue=1 | pages=L57 – L60 | year=2001 | doi=10.1086/318927 ] , yielding an object mass of 38 times that of Jupiter, which would make it a brown dwarf. However, subsequent analysis indicates that the precision of the measurements used to derive the astrometric orbit is insufficient to constrain the parameters, so the true inclination and mass remain unknown. [cite journal|url=http://adsabs.harvard.edu/abs/2001A%26A...372..935P|title=Screening the Hipparcos-based astrometric orbits of sub-stellar objects|author=Pourbaix, D. and Arenou, F.|journal=Astronomy and Astrophysics|volume=372|pages=935 – 944|year=2001|doi=10.1051/0004-6361:20010597]

ee also

*109 Piscium
*54 Piscium b

References

External links

*cite web|url=http://voparis-exoplanet.obspm.fr/star.php?st=HD+10697&p2=b|work=The Extrasolar Planets Encyclopaedia|title=The Extrasolar Planets Encyclopaedia: HD 10697 b|accessdate=26 August|accessyear=2008


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  • 109 Piscium — Données d observation (Époque J2000.0) Ascension droite 01h 44m 55,82s [1] Déclinaison +20° 04′ 59,3″ …   Wikipédia en Français

  • 109 Piscium b — 109 Piscium b[1] Descubrimiento Descubridor Vogt et al. Fecha 14 de noviembre 1999 …   Wikipedia Español

  • 109 Piscium — Datos de observación (Época J2000.0) Constelación Piscis Ascensión recta (α) 01h 44m 55.8246s …   Wikipedia Español

  • 109 Piscium — Starbox begin name=109 PisciumStarbox observe epoch=J2000.0 constell=Pisces ra=RA|01|44|55.8246 dec=DEC|+20|04|59.338 appmag v=6.292Starbox character class=G3 5Va IV b v=0.720 u b=0.23 variable=NoneStarbox astrometry radial v= prop mo ra= 45.05… …   Wikipedia

  • 109 Piscium — Datenbanklinks zu 109 Piscium Stern 109 Piscium …   Deutsch Wikipedia

  • 109 Piscium — …   Википедия

  • 109 Рыб — Звезда Наблюдательные данные (Эпоха J2000.0) Прямое восхождение …   Википедия

  • 54 Piscium — Starbox begin name = 54 PisciumStarbox image caption = 54 Piscium A and the brown dwarf 54 Piscium B (circled).Starbox observe epoch = J2000.0 constell = Pisces ra = RA|00|39|21.8 dec = DEC|+21|15|01.7 appmag v = 5.80Starbox character class = K0V …   Wikipedia

  • 54 Piscium b — Planetbox begin name = 54 Piscium bPlanetbox image caption = An artist s impression of 54 Piscium b.Planetbox star star = 54 Piscium A constell = Pisces ra = RA|00|39|21.8 dec = DEC|+21|15|01.7 dist ly = 36.2 ± 0.3 dist pc = 11.11 ± 0.0 class =… …   Wikipedia

  • 54 Piscium b — 54 Piscium b[1] Descubrimiento Descubridor Fischer, Butler, Marcy et al. Fecha 2003 …   Wikipedia Español

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