Basic data (System:1542)
| C1900.0 | : | 16211+4836
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| C2000.0 | : | 162409324+48211046
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| Comp. | : | A
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| Magn. | : | 10.27(V)
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| Spect. | : | M2.5V
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Identifiers:
| GAIADR2 1411178510887026048 | GAIADR3 1411178510887026048 | GJ 623 | HIP 80346
|
Orbit
| Element | | Value | Std. dev.
|
|---|
| Period (d.) | : | 1366.1 | 0.4
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| Periastron time (xJD-2,400,000.0) | : | 51298 | 10
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| Reference T0/epoch | : | JD
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| Eccentricity | : | 0.67 | 0.01
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| omega primary (deg.) | : | 251 | 1
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| K1 (km/s) | : | 2.08 | 0.04
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| K2 (km/s) | : | |
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| V0 (km/s) | : | -27.654 | 0.3
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| sigma residuals primary | : | 0.0510
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| sigma residuals secondary | : |
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| #RV primary | : | 12
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| #RV secondary | : |
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| Grade | : | 5
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| Contributor | : | NID
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| Status | : | PUB
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| Bibcode | : | 2002ApJS..141..503N
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| Derived quantities (on the fly, from the above quantities) |
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| a1sini (km) | : | 2.90065e+07 | 660000
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| f(m) (sol.mass) | : | 0.000523094 | 3.6e-05
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Note
Other references in text.
The 3 m/s precision is achieved thanks to relative velocities: a high
resolution spectrum of the very same star is used as a reference
template and the displacements measured according to that spectrum.
The listed RV are nevertheless absolute (see publication for details).
Radial velocities used in this orbit
| xJD | Rad.Vel. | O-C or error | Weight | Component | Offset | Comment
|
| -2,400,000.0 | (km/s) | (km/s) | | | (km/s) |
|
| 46959.90000 | -28.8484 | 0.0622 | 258.475 | a | |
|
| 48846.78340 | -26.4582 | 0.0362 | 763.102 | a | |
|
| 48905.63130 | -26.5884 | 0.0293 | 1164.836 | a | |
|
| 49114.92350 | -27.13 | 0.0385 | 674.650 | a | |
|
| 49172.73540 | -27.225 | 0.0376 | 707.334 | a | |
|
| 49200.70600 | -27.3486 | 0.0473 | 446.969 | a | |
|
| 49350.09750 | -27.5737 | 0.0463 | 466.485 | a | |
|
| 49469.92780 | -28.037 | 0.0362 | 763.102 | a | |
|
| 49622.62930 | -28.5604 | 0.0299 | 1118.556 | a | |
|
| 49794.05190 | -29.5333 | 0.0085 | 13840.830 | a | |
|
| 49881.90860 | -30.1869 | 0.0094 | 11317.338 | a | |
|
| 50181.92450 | -26.3404 | 0.0084 | 14172.336 | a | |
|
Plot
Encapsulated PostScript file
T. Merle
