upsilon Andromedae Planetary System Data
| Planet | Orbital Elements |
Orbital Period (years) |
Minimum Mass (ME) |
Discovery |
| Designation | Name |
Semimajor Axis (AU) | Eccentricity |
Discoverer Name | Announcement Date |
| upsilon And b | |
0.059 | 0.02 |
0.01264 | 220 |
G.W. Marcy & R.P. Butler | 1996 Jun 23 |
| upsilon And c | |
0.828 | 0.24 |
0.6606 | 652 |
R.P. Butler, et al. | 1999 Apr 15 |
| upsilon And d | |
2.56 | 0.31 |
3.582 | 1360 |
R.P. Butler, et al. | 1999 Apr 15 |
1 AU = 1.49597870691·1011 m
1 year = 365.25 days = 31557600 s
1 ME = 5.9742·1024 kg
Copyright © 1996, Alexander J. Willman, Jr. All rights reserved.
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