| C1900.0 | : | 12148-0007 |
|---|---|---|
| C2000.0 | : | 121954357-00400049 |
| Comp. | : | A |
| Magn. | : | 3.88(V) |
| Spect. | : | A2V |
| Bayer $\eta$ Vir | BD +00 2926 | Flamsteed 15 Vir | GAIADR2 3695061317956684160 |
| GAIADR3 3695061317956684160 | HD 107259 | HIP 60129 | HR 4689 |
| Element | Value | Std. dev. | |
|---|---|---|---|
| Period (d.) | : | 71.9 | |
| Periastron time (xJD-2,400,000.0) | : | 17644.41 | |
| Reference T0/epoch | : | JD | |
| Eccentricity | : | 0.34 | |
| omega primary (deg.) | : | 191.6 | |
| K1 (km/s) | : | 30.5 | |
| K2 (km/s) | : | 43.7 | |
| V0 (km/s) | : | +5.3 | |
| sigma residuals primary | : | ||
| sigma residuals secondary | : | ||
| #RV primary | : | ||
| #RV secondary | : | ||
| Grade | : | 3.0 | |
| Contributor | : | DAO | |
| Status | : | PUB | |
| Bibcode | : | 1935PDAO....6..207H | |
| Derived quantities (on the fly, from the above quantities) | |||
| a1sini (km) | : | 2.83587e+07 | 0 |
| a2sini (km) | : | 4.0632e+07 | 0 |
| m1sin**3 i (sol.mass) | : | 1.49642 | 0 |
| m2sin**3 i (sol.mass) | : | 1.04441 | 0 |
The elements given in the Catalogue supersede those derived from Harper's earlier study (Astrophys. J., 27, 160, 1908) and those found by N. Ichinohe (Astrophys. J., 26, 282, 1907). A peculiar velocity-curve derived by Ichinohe for the secondary component was not confirmed by Harper. Harper suggests the period should be revised to 71.8d. Petrie(II) found Delta m=0.36.
