TrES-3b
Size comparison of TrES-3b with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | O'Donovan et al. |
| Discovery site | United States |
| Discovery date | 2007 |
| Transit | |
| Orbital characteristics | |
| 0.0226 ± 0.0013 AU (3,380,000 ± 190,000 km) | |
| 1.30619 ± 0.00005 d | |
| Inclination | 82.15 |
| Star | GSC 03089-00929 |
| Physical characteristics | |
| 1.341 ± 0.081 RJ | |
| Mass | 1.92 ± 0.23 MJ |
Mean density | 1.172 g/cm3 |
| 2.7 g | |
| Temperature | 1555 K |
TrES-3b is an extrasolar planet orbiting the star GSC 03089-00929. It has an orbital period of just 31 hours and nearly twice the mass of Jupiter.
The planet TrES-3b is named Umbäässa. The name was selected in the NameExoWorlds campaign by Liechtenstein, during the 100th anniversary of the IAU. In the local dialect of southern Liechtenstein, Umbäässa is a small and barely visible ant.