Orbit Characteristics
| Title | Planet | Star | Data | Notes |
|---|---|---|---|---|
| Longest orbital period |
Fomalhaut b | Fomalhaut | 320,000 days (876 years) | DT Virginis c has an orbital period of 33,081 years. It is below brown dwarf mass limit but its origin is currently unknown. |
| Shortest orbital period |
KOI-55.01 | KOI-55 | 0.2407 ± 0.000004 days (5.7768 hours) | Star is a post-red-giant with another close-period planet, KOI-55.02 |
| Most eccentric orbit | HD 80606 b | HD 80606 | eccentricity of 0.9349 | HD 20782 b has an orbital eccentricity of 0.92 to 0.97 |
| Least eccentric orbit | HD 209458 b | HD 209458 | eccentricity of 0.001 | |
| Most inclined orbit | HAT-P-2b | HD 147506 | inclination 90° | |
| Largest orbit | 1RXS1609 b | 1RXS1609 | ~330 AU | Proper motion confirmed Nov 9, 2010 |
| Smallest orbit | KOI-55.01 | KOI-55 | 0.006 AU | |
| Smallest orbit around binary star | Kepler-47b | Kepler-47AB | ≃0.3 AU | |
| Smallest ratio of semi-major axis of a planet orbit to binary star orbit | Kepler-16b | Kepler-16AB | 3.14 ± 0.01 | Ratio of planet orbit to binary star orbit (by semi-major axis) |
| Largest orbit around binary star | DT Virginis c | DT Virginis | 1168 AU | Star system is also known as Ross 458 AB. The planet was eventually confirmed to be below deuterium burning limit but its formation origin is unknown. |
Read more about this topic: List Of Extrasolar Planet Extremes
Famous quotes containing the word orbit:
“The Fitchburg Railroad touches the pond about a hundred rods south of where I dwell. I usually go to the village along its causeway, and am, as it were, related to society by this link. The men on the freight trains, who go over the whole length of the road, bow to me as to an old acquaintance, they pass me so often, and apparently they take me for an employee; and so I am. I too would fain be a track-repairer somewhere in the orbit of the earth.”
—Henry David Thoreau (1817–1862)