V502 Her
| Simbad link | V502 Her |
|---|---|
| Source publication | Zhao, Ergang (2018) - First Photometric Investigation of the Neglected EW-type Binary System V502 Her |
| ADS link | 2018PASP..130d4201Z |
| Name in Source publication | V502 Her |
| Orbital period in days (P [d]) | 0.369276 |
| Mass ratio (q) | 0.31 |
| Mass ratio determination | Photometric |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.369276 |
| Mass ratio (q) | 0.31 |
| Orbital inclination in degrees (i [o]) | 79.3 |
| Fillout (f) | 0.38 |
| Primary temperature in Kelvins (T1 [K]) | 6180 |
| Secondary temperature in Kelvins (T2 [K]) | 6143 |
| Primary polar radius in units of orbital separation (r1p) | 0.4681 |
| Secondary polar radius in units of orbital separation (r2p) | 0.281 |
| Surface potential (Ω) | 2.42 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | |
| Secondary mass in solar units (M2 [M]) | |
| Primary temperature in kelvins (T1 [K]) | 6180 |
| Secondary temperature in Kelvins (T2 [K]) | 6143 |
| 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]) | 0.369276 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.002765 |
| Cyclic period variation in years (Pc [y]) | 26.8 |
| Simbad link | V502 Her |
|---|---|
| J magnitude | 11.903 |
| H magnitude | 11.656 |
| K magnitude | 11.586 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 13.12 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.0784 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |