BE Cep
| Simbad link | BE Cep |
|---|---|
| Source publication | Dai, H. -F. (2012) - A comprehensive photometric study of the marginal-contact binary BE Cephei |
| ADS link | 2012NewA...17..347D |
| Name in Source publication | BE Cep |
| Orbital period in days (P [d]) | 0.424395 |
| Mass ratio (q) | 0.43 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.424395 |
| Mass ratio (q) | 0.43 |
| Orbital inclination in degrees (i [o]) | 82.2 |
| Fillout (f) | 0.07 |
| Primary temperature in Kelvins (T1 [K]) | 5310 |
| Secondary temperature in Kelvins (T2 [K]) | 5906 |
| Primary polar radius in units of orbital separation (r1p) | 0.4305 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2909 |
| Surface potential (Ω) | 2.7155 |
| Orbital separation in solar radii (a [R]) | 2.54 |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | 0.86 |
| Secondary mass in solar units (M2 [M]) | 0.37 |
| Primary temperature in kelvins (T1 [K]) | 5310 |
| Secondary temperature in Kelvins (T2 [K]) | 5906 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.424395 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.004182 |
| Cyclic period variation in years (Pc [y]) | 59.26 |
| Designation | Gaia DR2 2008169894076900736 |
|---|---|
| RA | 340:20:11.54508 |
| DEC | 58:36:30.939228 |
| l | 106.6689867 |
| b | -0.093814221 |
| G magnitude | 11.979078 |
| G_bp magnitude | 12.369325 |
| G_rp magnitude | 11.406839 |
| Radial velocity [km/s] | |
| Parallax | 2.432062254 |
| Distance [pc] | 411.173685 |
| Temperature [K] | 5256.343 |
| Radius [R] | 1.7654488 |
| Luminosity [L] | 2.14358 |
| Simbad link | BE Cep |
|---|---|
| J magnitude | 11.001 |
| H magnitude | 10.672 |
| K magnitude | 10.643 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.94 |
| Johnson_V magnitude | 12.05 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.9791 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |