Astronomy:HD 121504 b
From HandWiki
Short description: Extrasolar planet in the constellation Centaurus
| Discovery | |
|---|---|
| Discovered by | Mayor et al. |
| Discovery site | La Silla Observatory |
| Discovery date | August 7, 2000 |
| Radial velocity (CORALIE) | |
| Designations | |
| HIP 68162 b | |
| Orbital characteristics | |
| astron|astron|helion}} | 0.34 50 Gm |
| astron|astron|helion}} | 0.32 48 Gm |
| 0.33 AU 49 Gm | |
| Eccentricity | 0.03 ± 0.01 |
| Orbital period | 63.33 ± 0.03 d 0.1734 year |
| Angular distance | 7 mas |
| 265° ± 12° | |
| astron|astron|helion}} | 2,451,450 ± 2 JD |
| Semi-amplitude | 50.8 ± 0.9 m/s |
| Star | HD 121504 |
| Physical characteristics | |
| Mass | >1.22 MJ >388 ME |
HD 121504 b is an exoplanet that is likely to be slightly less massive than Jupiter. Although the radial velocity method that was used to detect the planet can only measure the minimum mass of the planet, it is very unlikely that its true mass would be much higher.[1]
HD 121504 b orbits the star at a distance of about one third of Earth's distance from the Sun, and has a slightly eccentric orbit.
References
- ↑ Mayor, M. et al. (2004). "The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE". Astronomy and Astrophysics 415 (1): 391–402. doi:10.1051/0004-6361:20034250. Bibcode: 2004A&A...415..391M. http://www.aanda.org/articles/aa/full/2004/07/aa0250/aa0250.html.
External links
- "HD 121504 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/hd_121504_b--39/.
- "HD 121504". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+121504.
Coordinates: 
13h 57m 17.2375s, −56° 02′ 24.153″
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