Orbital Elements for Upsilon Andromedae
Orbital Parameters Table
| Parameters |
Lick data |
AFOE data |
Combined Lick/AFOE |
| Companion b |
|
|
|
|---|
| P (d) |
4.6171  0.0001 |
4.6171 0.0003 |
4.6170 0.0003 |
| Tperi (JD) |
2450315.34 0.7 |
2450001.99 0.51 |
2450002.24 3.1 |
| e |
0.042 0.030 |
0.042 0.033 |
0.034 0.15 |
 (deg) |
16.0 139 |
63.8 40 |
83.0 243 |
| K1 (m/s) |
74.5 2.3 |
75.6 2.3 |
73.0 5 |
| a1 sin i (AU) |
3.16e-5 |
3.21e-5 |
3.10e-5 |
| ab (AU) |
0.059 |
0.059 |
0.059 |
| Mb sin i (MJup) |
0.72 |
0.74 |
0.71 |
| |
|
|
|
| Companion c |
|
|
|
|---|
| P (d) |
242.0 0.7 |
243.5 1.0 |
241.2 1.1 |
| Tperi (JD) |
2451131.24 23.4 |
2450140.4 8.3 |
2450154.9 20.8 |
| e |
0.23 0.06 |
0.22 0.06 |
0.18 0.11 |
| (deg) |
261.0 47 |
219.2 14 |
243.6 33 |
| K1 (m/s) |
56.0 2.5 |
53.7 3.5 |
58.0 7.9 |
| a1 sin i (AU) |
0.0012 |
0.0012 |
0.0013 |
| ac (AU) |
0.83 |
0.83 |
0.83 |
| Mc sin i (MJup) |
1.98 |
1.96 |
2.11 |
| |
|
|
|
| Companion d |
|
|
|
|---|
| P (d) |
1269.0 8.5 |
1481.2 35 |
1266.6 30 |
| Tperi (JD) |
2453813.46 32.0 |
2450046.8 16.1 |
2451308.7 40.5 |
| e |
0.36 0.05 |
0.44 0.05 |
0.41 0.11 |
| (deg) |
236.0 14.6 |
245.9 5.9 |
247.7 17.0 |
| K1 (m/s) |
69.5 2.1 |
85.5 4.0 |
72.9 7.1 |
| a1 sin i (AU) |
0.0076 |
0.0105 |
0.0077 |
| ad (AU) |
2.50 |
2.78 |
2.50 |
| Md sin i (MJup) |
4.11 |
5.70 |
4.61 |
| |
|
|
|
| N(obs) |
89 |
52 |
141 |
| RMS residuals (m/s) |
15.12 |
12.1 |
18.7 |
There is more on the AFOE's planet detection
program.
__________________________________________________
Adam Contos
(acontos@cfa.harvard.edu)
Last modified: Fri Apr 23 19:07:15 1999