V1197 Her
| Simbad link | V1197 Her |
|---|---|
| Source publication | Zhou, Xiao (2020) - Photometric investigation on the W-subtype contact binary V1197 Her |
| ADS link | 2020RAA....20...10Z |
| Name in Source publication | V1197 Her |
| Orbital period in days (P [d]) | 0.26268 |
| Mass ratio (q) | 0.38 |
| 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]) | 0.26268 |
| Mass ratio (q) | 0.38 |
| Orbital inclination in degrees (i [o]) | 82.7 |
| Fillout (f) | 0.15 |
| Primary temperature in Kelvins (T1 [K]) | 4973 |
| Secondary temperature in Kelvins (T2 [K]) | 5113 |
| Primary polar radius in units of orbital separation (r1p) | 0.4431 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2865 |
| Surface potential (Ω) | 2.6073 |
| Orbital separation in solar radii (a [R]) | 1.76 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.83 |
| Secondary radius in solar units (R2 [R]) | 0.54 |
| Primary mass in solar units (M1 [M]) | 0.77 |
| Secondary mass in solar units (M2 [M]) | 0.3 |
| Primary temperature in kelvins (T1 [K]) | 4973 |
| Secondary temperature in Kelvins (T2 [K]) | 5113 |
| Primary luminosity in solar units (L1 [L]) | 0.38 |
| Secondary luminosity in solar units (L2 [L]) | 0.18 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 10.09 |
| Orbital period in days (P [d]) | 0.26268 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.022291 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 1305635874341056512 |
|---|---|
| RA | 248:20:42.81432 |
| DEC | 28:18:19.742148 |
| l | 47.94277852 |
| b | 41.31488188 |
| G magnitude | 12.764465 |
| G_bp magnitude | 13.245763 |
| G_rp magnitude | 12.133168 |
| Radial velocity [km/s] | |
| Parallax | 3.633309551 |
| Distance [pc] | 275.231159 |
| Temperature [K] | 4972.57 |
| Radius [R] | 0.94419116 |
| Luminosity [L] | 0.49106404 |
| Simbad link | V1197 Her |
|---|---|
| J magnitude | 11.226 |
| H magnitude | 10.742 |
| K magnitude | 10.646 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 13.2 |
| Johnson_V magnitude | 12.78 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.7645 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |