| C1900.0 | : | 05097-0819 |
|---|---|---|
| C2000.0 | : | 051432272-08120591 |
| Comp. | : | B |
| Magn. | : | 6.67 |
| Spect. | : | B9 |
| Bayer $\beta$ Ori | BD -08 1063 | HIP 24436 |
| Element | Value | Std. dev. | |
|---|---|---|---|
| Period (d.) | : | 9.860 | |
| Periastron time (xJD-2,400,000.0) | : | 29633.196 | |
| Reference T0/epoch | : | JD | |
| Eccentricity | : | 0.1 | |
| omega primary (deg.) | : | 10. | |
| K1 (km/s) | : | 25.0 | |
| K2 (km/s) | : | 32.6 | |
| V0 (km/s) | : | +19.1 | |
| sigma residuals primary | : | ||
| sigma residuals secondary | : | ||
| #RV primary | : | ||
| #RV secondary | : | ||
| Grade | : | 2.0 | |
| Contributor | : | DAO | |
| Status | : | PUB | |
| Bibcode | : | 1942ApJ....95..421S | |
| Derived quantities (on the fly, from the above quantities) | |||
| a1sini (km) | : | 3.37263e+06 | 0 |
| a2sini (km) | : | 4.39791e+06 | 0 |
| m1sin**3 i (sol.mass) | : | 0.109258 | 0 |
| m2sin**3 i (sol.mass) | : | 0.0837871 | 0 |
Fainter component (BC) of beta Ori (A.D.S. 3823, at least a quadruple system). Separation from beta Ori A is 9.5" and the pair seems to be a common-proper-motion pair. This fainter component has been suspected of visual duplicity (separation always less than 0.2"), but since its two subcomponents are apparently equal in magnitude, it is difficult to reconcile these observations with the failure to observe any spectrum of C. Star C cannot be identified with the star producing the secondary spectrum of the spectroscopic pair. The bright component, beta Ori A, has been suspected of being a binary and an orbit was derived by J.S. Plaskett (Astrophys. J., 30, 26, 1909). In view of the small amplitude (3.8 km/s), however, and the known tendency of supergiants to display random atmospheric motions, it seems unlikely that this star is a real binary (see R.F. Sanford, Astrophys. J., 105, 222, 1947).
