Mu Arae c
| Discovery | |
|---|---|
| Discovered by | Santos, Bouchy Mayor, Pepe |
| Discovery site | La Silla Observatory, Chile |
| Discovery date | August 25, 2004 |
| HARPS | |
| Orbital characteristics | |
| Apastron | 0.10659 AU (15.946 million km) |
| Periastron | 0.07529 AU (11.263 million km) |
| 0.09094 AU (13.604 million km) | |
| Eccentricity | 0.172 ± 0.040 |
| 9.6386 ± 0.0015 d 0.02639 y | |
| 2,452,991.1 ± 0.4 | |
| 212.7 ± 13.3 | |
| Semi-amplitude | 3.06 ± 0.13 |
| Star | Mu Arae |
Mu Arae c, also known as HD 160691 c, formally named Dulcinea (pronounced /dʌlˈsɪniə/ or /dʌlsɪˈniːə/), is an extrasolar planet orbiting the star Mu Arae of the constellation Ara. It was the first 'hot Neptune' to be discovered.
None of the four planets orbiting Mu Arae are directly visible from Earth using currently available tools. All four were found using the radial velocity method of extrasolar planet detection.