47 Ursae Majoris c
47 Ursae Majoris c (abbreviated 47 UMa c), formally named Taphao Kaew (/təˌpaʊ ˈɡaʊ/ tə-POW GOW; Thai: ตะเภาแก้ว [tāpʰāwkɛ̂ːw]) is an extrasolar planet approximately 46 light-years from Earth in the constellation of Ursa Major. The planet was discovered located in a long-period around the star 47 Ursae Majoris. Its orbit lasts 6.55 years and the planet has a mass at least 0.540 times that of Jupiter.
An artist's impression of 47 UMa c | |
| Discovery | |
|---|---|
| Discovered by | Fischer, Butler, and Marcy et al. |
| Discovery site | United States |
| Discovery date | 15 August 2001 19 March 2002 (confirmed) |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 3.6 ± 0.1 astronomical units (539 ± 15 million kilometres) | |
| Eccentricity | 0.098+0.047 −0.096 |
| 2391+100 −70 d ~6.55 y | |
| 2,452,441+628 −825 | |
| 295+114 −160 | |
| Semi-amplitude | 7.0 ± 2.3 |
| Star | 47 Ursae Majoris |
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