ENCYCLOPEDIA 4U .com

Encyclopedia Home Page

Upsilon Andromedae

Upsilon Andromedae was the first star determined to have more than one extrasolar planet. So far, three such objects have been discovered within the system; all three are believed to be gas giants.

The Three Extrasolar Planets of Upsilon Andromedae

A
- Distance from UA: 0.06AU
- Mass: 0.71 M_J
- Orbital Period: 4.6 days
B
- Distance from UA: 0.83AU
- Mass: 2.11 M_J
- Orbital Period: 242 days
C
- Distance from UA: 2.5AU
- Mass: 4.61 M_J
- Orbital Period: 3.5 years

Content on this web site is provided for informational purposes only. We accept no responsibility for any loss, injury or inconvenience sustained by any person resulting from information published on this site. We encourage you to verify any critical information with the relevant authorities.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Upsilon Andromedae".