tau Bootes A Planetary System Data
| Planet | Orbital Elements |
Orbital Period (years) |
Minimum Mass (ME) |
Discovery |
| Designation | Name |
Semimajor Axis (AU) | Eccentricity |
Discoverer Name | Announcement Date |
| tau Bootes A b | |
0.047 | 0.02 |
0.009070 | 1320 |
G. Marcy & R.P. Butler | 1996 Jun 14 |
1 AU = 1.49597870691·1011 m
1 year = 365.25 days = 31557600 s
1 ME = 5.9742·1024 kg
tau Bootes A has an M2 dwarf companion, tau Bootes B, which orbits with a period of ~2000 years, semi-major axis of 245 AU, and an eccentricity of 0.91 [Ref: Hale (1994)]
Copyright © 1996, Alexander J. Willman, Jr. All rights reserved.
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