HD 40307 g
Exoplanet candidate in the constellation of Pictor / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about HD 40307 g?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
HD 40307 g is an exoplanet candidate suspected to be orbiting in the habitable zone of HD 40307. It is located 42 light-years away in the direction of the southern constellation Pictor. The planet was discovered by the radial velocity method, using the European Southern Observatory's HARPS apparatus[1][4][5] by a team of astronomers led by Mikko Tuomi at the University of Hertfordshire and Guillem Anglada-Escude of the University of Göttingen, Germany.[6]
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | Mikko Tuomi et al. |
Discovery site | La Silla Observatory, Chile |
Discovery date | October 28, 2012 |
radial velocity, using HARPS | |
Orbital characteristics | |
0.600 AU (89,800,000 km) | |
Eccentricity | 0.22[1] |
197.8 ± 9.0[1] d | |
Semi-amplitude | 0.95 ± 0.3[1] |
Star | HD 40307 |
Physical characteristics | |
Mean radius | 2.39[2] R🜨 |
Mass | 7.09[2] ME |
Temperature | 277.6[3] |
Close
The existence of the planet was disputed in 2015, as more Doppler spectroscopy data has become available.[7]