Ypsilon Andromedae e
|
Exoplanet Ypsilon Andromedae e |
|
|---|---|
| Constellation | Andromeda |
| Position equinox : J2000.0 |
|
| Right ascension | 01h 36m 47.843s |
| declination | + 41 ° 24 ′ 19.65 ″ |
| Orbit data | |
| Central star | Titawin A |
| Major semi-axis | 5.24558 ± 0.00067 AU |
| eccentricity | 0.00536 ± 0.00044 |
| Period of circulation | 3848.86 ± 0.74 d |
| Further data | |
| Minimum dimensions | 1.059 ± 0.028 |
| distance | 13.57 ± 0.02 pc |
| history | |
| discovery | Curiel et al. |
| Date of discovery | 2010 |
| Catalog names | |
| υ And e, 50 And e, HR 458 e, GJ 61 e, HD 9826 e | |
Upsilon Andromedae e (also abbreviated υ And e ) is an extrasolar planet which the approximately 44.25 light years from the sun distant main sequence star Titawin A in the binary system Titawin in the constellation Andromeda orbits. It is the outermost of the four known planets in the star's planetary system .
discovery
The planet was discovered in 2010 by a team of astronomers led by S. Curiel from the Astronomical Institute of the National Autonomous University of Mexico . The discovery was made using the radial velocity method .
properties
υ And e has similarities with Jupiter in the solar system in terms of its orbital properties and its minimum mass . It orbits its central star at 5.24558 AU distance in 3848.86 days. Unlike the further inward orbiting planets Samh and Majriti , its orbit is almost circular. υ And e has a track response with Samh of 3: 1. The minimum mass is slightly larger than the mass of Jupiter, although the actual mass could be higher.