OTS 44
 An artist's concept of OTS 44's dust disk | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Chamaeleon |
| Right ascension | 11h 10m 11.5s |
| Declination | -76° 32' 13" |
| Apparent magnitude (V) | +14.61 |
| Characteristics | |
| Spectral type | M9.5V |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | ? |
| Astrometry | |
| Radial velocity (Rv) | ? km/s |
| Proper motion (μ) | RA: ? mas/yr Dec.: ? mas/yr |
| Parallax (π) | ? ± ? mas |
| Distance | 554 ly (170 pc) |
| Absolute magnitude (MV) | ? |
| Details | |
| Mass | 15 MJ (0.0143 M☉ |
| Radius | 2.5 RJ (0.258 R☉ |
| Luminosity | ? L☉ |
| Temperature | 2,300 K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
OTS 44 is a brown dwarf about 550 light-years away in the constellation Chamaeleon. Prior to the discovery of Cha 110913-773444 it was the smallest known brown dwarf.
OTS 44 has a mass of about 15 times that of Jupiter, or about 1.5 % that of the Sun. Its radius is about 20% of the Sun.
There are indications that OTS is surrounded by a disc of dust and particles of stone and ice, a disc that could eventually develop into a planetary system.
See also
- SCR 1845-6357, a binary system comprising a red dwarf and a brown dwarf
- Cha 110913-773444, an astronomical object surrounded by what appears to be a protoplanetary disk
External links
 | This star-related article is a stub. You can help Wikipedia by expanding it. |