From Surf Wiki (app.surf) — the open knowledge base

109 Piscium b

Long-period gas giant orbiting 109 Piscium

Field	Value
name	109 Piscium b
image	Rendering of 109 Piscium b.png
image_alt	Render of 109 Piscium b made with SpaceEngine
caption	Render of 109 Piscium b made with SpaceEngine
discovery_ref
discoverer	California and
Carnegie Planet Search
discovery_site	W. M. Keck Observatory
discovered	November 1, 1999
discovery_method	Doppler spectroscopy
orbit_ref
semimajor
eccentricity
period	2.944 ±
inclination
asc_node
time_periastron
arg_peri
semi-amplitude
star	109 Piscium
physical_ref
mean_radius
mass

Carnegie Planet Search](california-and-carnegie-planet-search) | semi-amplitude = 109 Piscium b (aka HD 10697 b) is a long-period extrasolar planet discovered in orbit around 109 Piscium. It is about 5.74 times the mass of Jupiter and is likely to be a gas giant. As is common 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 from solar heating, but it could be at least 10 to 20 K warmer because of internal heating. It orbits within the habitable zone.

Preliminary astrometric measurements suggested that the orbital inclination is 170.3°, 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. A more plausible suggestion is that this planet shares its star's inclination, of 69°.{{Cite encyclopedia |access-date=November 12, 2012

References

{{cite EPE
(2001). "Preliminary astrometric masses for proposed extrasolar planetary companions". The Astrophysical Journal Letters.
(November 1, 1999). "Astronomers discover six new planets orbiting nearby stars". W. M. Keck Observatory.
(2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal.
(2001). "Screening the Hipparcos-based astrometric orbits of sub-stellar objects". Astronomy and Astrophysics.
(2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal.
(August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". [[The Astrophysical Journal Supplement Series]].

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

109-piscium giant-planets exoplanets-discovered-in-1999 exoplanets-detected-by-radial-velocity exoplanets-detected-by-astrometry giant-planets-in-the-habitable-zone

Want to explore this topic further?

Ask Mako anything about 109 Piscium b — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report