| C1900.0 | : | 18407+5526 |
|---|---|---|
| C2000.0 | : | 184237953+55322205 |
| Comp. | : | |
| Magn. | : | 5.05(V) |
| Spect. | : | A0 ; A0 |
| BD +55 2107 | Flamsteed 46 Dra | GAIADR2 2147865732587997056 | GAIADR3 2147865732587997056 |
| HD 173524 | HIP 91755 |
| Element | Value | Std. dev. | |
|---|---|---|---|
| Period (d.) | : | 9.8107 | |
| Periastron time (xJD-2,400,000.0) | : | 40003.22 | |
| Reference T0/epoch | : | JD | |
| Eccentricity | : | 0.20 | |
| omega primary (deg.) | : | 173. | |
| K1 (km/s) | : | 25.1 | |
| K2 (km/s) | : | 29.5 | |
| V0 (km/s) | : | -31.0 | |
| sigma residuals primary | : | ||
| sigma residuals secondary | : | ||
| #RV primary | : | ||
| #RV secondary | : | ||
| Grade | : | 4.0 | |
| Contributor | : | DAO | |
| Status | : | PUB | |
| Bibcode | : | 1976PDAO...14..379A | |
| Derived quantities (on the fly, from the above quantities) | |||
| a1sini (km) | : | 3.31775e+06 | 0 |
| a2sini (km) | : | 3.89934e+06 | 0 |
| m1sin**3 i (sol.mass) | : | 0.0844067 | 0 |
| m2sin**3 i (sol.mass) | : | 0.0718172 | 0 |
The values found for K1 and K2 by Aikman are lower than those found by R.M. Petrie (Publ. Dom. Astrophys. Obs., 6, 285, 1935), but since Aikman's are derived from spectrograms of higher dispersion they are probably the more reliable. The values of e, omega and V0 obtained in the two investigations agree reasonably well. Petrie(I) found Delta m=0.29. He estimated i=23 deg.
