Basic data (System:865)
| C1900.0 | : | 15475-1952
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| C2000.0 | : | 155320059-20100135
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| Comp. | :
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| Magn. | : | 5.03(V)
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| Spect. | : | B2.5V
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Identifiers:
| Bayer $\lambda$ Lib | BD -19 4249 | GAIADR2 6246914247094934272 | GAIADR3 6246914247094934272
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| HD 142096 | HIP 77811 | HR 5902
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Orbit
| Element | | Value | Std. dev.
|
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| Period (d.) | : | 12.4619 | 0.0005
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| Periastron time (xJD-2,400,000.0) | : | 35159.000 | 0.087
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| Reference T0/epoch | : | JD
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| Eccentricity | : | 0.40 | 0.03
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| omega primary (deg.) | : | 268 | 3
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| K1 (km/s) | : | 33.5 | 1.0
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| K2 (km/s) | : | |
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| V0 (km/s) | : | -2.0 | 0.5
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| sigma residuals primary | : |
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| sigma residuals secondary | : |
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| #RV primary | : | 35
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| #RV secondary | : |
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| Grade | : |
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| Contributor | : | LEITON
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| Status | : | PUB
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| Bibcode | : | 1999A&A...343..273L
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| Derived quantities (on the fly, from the above quantities) |
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| a1sini (km) | : | 5.26142e+06 | 170000
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| f(m) (sol.mass) | : | 0.0375145 | 0.0037
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Note
-Observations using the Coude Auxiliary Telescope (CAT) equipped with
the Coude Echelle Spectrometer of the European Southern Observatory
and the 0.9m telescope of the Catania Astrophysical Observatory, which
is fibre linked to a REOSC echelle spectrograph.
-ESO(CAT)+CES configuration: sigma (standard deviation) =0.7 km/s
-SLN + REOSC spectrograph: sigma=1.1 km/s
The RV of van Hoof et al. (1963) are used in the orbital solution.
SB9: The T0 listed in the paper was wrong. The authors supplied us with
a revised value.
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) |
|
| 35146.992 | +29.2 | | 1 | a | |
|
| 35147.923 | +33.3 | | 1 | a | |
|
| 35148.986 | +36.2 | | 1 | a | |
|
| 35149.926 | +26.5 | | 1 | a | |
|
| 35149.936 | +27.8 | | 1 | a | |
|
| 35151.937 | +14.1 | | 1 | a | |
|
| 35151.946 | +16.1 | | 1 | a | |
|
| 35153.887 | +5.4 | | 1 | a | |
|
| 35153.898 | -1.0 | | 1 | a | |
|
| 35159.904 | +35.7 | | 1 | a | |
|
| 35164.014 | +10.2 | | 1 | a | |
|
| 49787.877 | -40.0 | | 1 | a | |
|
| 50498.630 | -33.0 | | 1 | a | |
|
| 50500.641 | 24.5 | | 1 | a | |
|
| 50501.634 | 32.1 | | 1 | a | |
|
| 50502.653 | 24.4 | | 1 | a | |
|
| 50503.612 | 18.1 | | 1 | a | |
|
| 50505.614 | 1.6 | | 1 | a | |
|
| 50506.604 | -8.8 | | 1 | a | |
|
| 50621.415 | -34.8 | | 1 | a | |
|
| 50622.422 | -37.8 | | 1 | a | |
|
| 50623.389 | -32.3 | | 1 | a | |
|
| 50624.415 | 5.4 | | 1 | a | |
|
| 50625.415 | 19.2 | | 1 | a | |
|
| 50627.405 | 13.6 | | 1 | a | |
|
| 50628.401 | 9.7 | | 1 | a | |
|
| 50629.433 | -1.0 | | 1 | a | |
|
| 50630.406 | -8.6 | | 1 | a | |
|
| 50644.334 | -21.4 | | 1 | a | |
|
| 50645.330 | -28.2 | | 1 | a | |
|
| 50646.367 | -32.6 | | 1 | a | |
|
| 50648.344 | -26.7 | | 1 | a | |
|
| 50649.342 | -0.6 | | 1 | a | |
|
| 50650.334 | 17.3 | | 1 | a | |
|
| 50651.356 | 18.1 | | 1 | a | |
|
Plot
Encapsulated PostScript file
T. Merle
