Encyclopedia > Upsilon Andromedae

Article Content

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

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Great River, New York

... of 18, 5.0% from 18 to 24, 29.0% from 25 to 44, 24.2% from 45 to 64, and 12.7% who are 65 years of age or older. The median age is 39 years. For every 100 females th ...