| Proper Name | None | | Designations | HD 100546 c, KR Muscae c, HIP 56379 c | | Classification | Gas giant (probable brown dwarf) | | Orbital Period | Not known | | Mean Distance from HD 100546 | c. 1,500 million km
10.0 AU | | Mass | Highly uncertain; estimates suggest 15 x Jupiter | | Diameter | Approximately 1.26 x Jupiter | | Temperature | Not known | | Parent star | KR Muscae (HD 100546), blue main sequence star in Musca | | Other planets in this system |
HD 100546 b (unconfirmed)
HD 100546 d (unconfirmed)
HD 100546 e (unconfirmed)
HD 100546 h (unconfirmed)
HD 100546 candidate 1 (unconfirmed)
HD 100546 candidate 2 (unconfirmed)
| | Notes | KR Muscae (the star designated HD 100546) is a complex system, in which the young star is surrounded by two thick, concentric rings of dusty material. Within and around those circumstellar discs, apparent indications of several massive planets have been detected, but the configuration of the system makes them difficult to distinguish from anomalies within the discs themselves. The status of HD 100546 c (and other potential planets in the system) has yet to be confirmed, but the available data seems to point to it being a ringed planet, much more massive than Jupiter, that is likely responsible for the gap between the star's inner and outer discs. |
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