W UMa
| Simbad link | W UMa |
|---|---|
| Source publication | Linnell, Albert P. (1991) - A Light Synthesis Study of W Ursae Majoris |
| ADS link | 1991ApJ...374..307L |
| Name in Source publication | W UMa |
| Orbital period in days (P [d]) | 0.333636 |
| Mass ratio (q) | 0.49 |
| Mass ratio determination | Spectroscopic |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | LI |
|---|---|
| Orbital period in days (P [d]) | 0.333636 |
| Mass ratio (q) | 0.49 |
| Orbital inclination in degrees (i [o]) | 86 |
| Fillout (f) | 0.1 |
| Primary temperature in Kelvins (T1 [K]) | 5746 |
| Secondary temperature in Kelvins (T2 [K]) | 5984 |
| Primary polar radius in units of orbital separation (r1p) | 0.4209 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3033 |
| Surface potential (Ω) | 2.8273 |
| Orbital separation in solar radii (a [R]) | 2.4 |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | 1.12 |
| Secondary mass in solar units (M2 [M]) | 0.55 |
| Primary temperature in kelvins (T1 [K]) | 5746 |
| Secondary temperature in Kelvins (T2 [K]) | 5984 |
| Primary luminosity in solar units (L1 [L]) | 1.22 |
| Secondary luminosity in solar units (L2 [L]) | 0.73 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 4.71 |
| Orbital period in days (P [d]) | 0.333636 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | |
| Period study | Pribulla, T. (2001) - New Photoelectric Minima and Updated Ephemerides of Selected Eclipsing Binaries |
| ADS link | 2001IBVS.5056....1P |
| Designation | Gaia DR2 1022096392749670016 |
|---|---|
| RA | 145:56:22.53228 |
| DEC | 55:57:08.61372 |
| l | 158.9225743 |
| b | 45.90248212 |
| G magnitude | 7.7937016 |
| G_bp magnitude | 8.1552515 |
| G_rp magnitude | 7.367436 |
| Radial velocity [km/s] | |
| Parallax | 19.27753231 |
| Distance [pc] | 51.873859 |
| Temperature [K] | 5881 |
| Radius [R] | 1.1875179 |
| Luminosity [L] | 1.5197766 |
| Simbad link | W UMa |
|---|---|
| J magnitude | 6.573 |
| H magnitude | 6.223 |
| K magnitude | 6.184 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 8.54 |
| Johnson_V magnitude | 7.75 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 7.7937 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |