| C1900.0 | : | 01518+3735 |
|---|---|---|
| C2000.0 | : | 015746056+38042844 |
| Comp. | : | |
| Magn. | : | 10.44(V) ; 10.93(V) |
| Spect. | : | F3IV-Vnnp ; F8 |
| BD +37 435 | Cl* NGC 752 FRAN 260 | Cl* NGC 752 PLA 897 | Cl* NGC 752 REB 228 |
| Cl* NGC 752 RV 79 | Cl* NGC 752 STOCK 291 | GAIADR2 342946885113758720 | GAIADR3 342946885113758720 |
| GCVS DS And | Misc NGC 752 219 | TYC 2816-2203-1 |
| Element | Value | Std. dev. | |
|---|---|---|---|
| Period (d.) | : | 1.0105 | |
| Primary minimum (xJD-2,400,000.0) | : | 36142.405 | |
| Reference T0/epoch | : | JD | |
| Eccentricity | : | 0.0 | |
| omega primary (deg.) | : | 0.0 | |
| K1 (km/s) | : | 110. | |
| K2 (km/s) | : | 180. | |
| V0 (km/s) | : | +5.4 | |
| sigma residuals primary | : | ||
| sigma residuals secondary | : | ||
| #RV primary | : | ||
| #RV secondary | : | ||
| Grade | : | 2.0 | |
| Contributor | : | DAO | |
| Status | : | PUB | |
| Bibcode | : | 1986BAAS...18..682S | |
| Derived quantities (on the fly, from the above quantities) | |||
| a1sini (km) | : | 1.52849e+06 | 0 |
| a2sini (km) | : | 2.50117e+06 | 0 |
| m1sin**3 i (sol.mass) | : | 1.59099 | 0 |
| m2sin**3 i (sol.mass) | : | 0.972272 | 0 |
The reference given in the Catalogue is to an abstract and most of the information given here is taken from a preprint of the full paper. The spectral type of the secondary is estimated from the effective temperature computed from the light-curve by Schiller and Milone. The epoch is the time of primary minimum and the orbit is assumed circular. Schiller and Milone do not compute K1 and K2 directly (the values given are estimates from their velocity-curves); they solve light-curves and velocity-curve together by the Wilson-Devinney method and find a mass-ratio of 0.6 and a total mass of 2.5 MSol. They believe that the primary nearly fills its Roche lobe. They find an orbital inclination of about 84 deg and a visual magnitude difference of 1.85m between the components. The star is a member of the cluster N.G.C. 752.
