PZ UMa
| Simbad link | PZ UMa |
|---|---|
| Source publication | Zhou, Xiao (2019) - The W-subtype active contact binary PZ UMa with a possible more massive tertiary component |
| ADS link | 2019PASJ...71...39Z |
| Name in Source publication | PZ UMa |
| Orbital period in days (P [d]) | 0.262675 |
| Mass ratio (q) | 0.18 |
| 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]) | 0.262675 |
| Mass ratio (q) | 0.18 |
| Orbital inclination in degrees (i [o]) | 74.8 |
| Fillout (f) | 0.4 |
| Primary temperature in Kelvins (T1 [K]) | 4972 |
| Secondary temperature in Kelvins (T2 [K]) | 5430 |
| Primary polar radius in units of orbital separation (r1p) | 0.5069 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2379 |
| Surface potential (Ω) | 2.1317 |
| Orbital separation in solar radii (a [R]) | 1.67 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.92 |
| Secondary radius in solar units (R2 [R]) | 0.43 |
| Primary mass in solar units (M1 [M]) | 0.77 |
| Secondary mass in solar units (M2 [M]) | 0.14 |
| Primary temperature in kelvins (T1 [K]) | 4972 |
| Secondary temperature in Kelvins (T2 [K]) | 5430 |
| Primary luminosity in solar units (L1 [L]) | 0.46 |
| Secondary luminosity in solar units (L2 [L]) | 0.15 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 8.76 |
| Orbital period in days (P [d]) | 0.262675 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 13.22 |
| Designation | Gaia DR2 1018042012342622592 |
|---|---|
| RA | 142:16:45.8508 |
| DEC | 49:51:23.179212 |
| l | 168.185082 |
| b | 45.47283254 |
| G magnitude | 12.589161 |
| G_bp magnitude | 12.988021 |
| G_rp magnitude | 12.06082 |
| Radial velocity [km/s] | |
| Parallax | 3.086380243 |
| Distance [pc] | 324.004148 |
| Temperature [K] | 5429.85 |
| Radius [R] | 0.97320503 |
| Luminosity [L] | 0.7417452 |
| Simbad link | PZ UMa |
|---|---|
| J magnitude | 11.421 |
| H magnitude | 11.024 |
| K magnitude | 10.966 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.5 |
| Johnson_V magnitude | 12.71 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.5892 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |