MQ UMa
| Simbad link | MQ UMa |
|---|---|
| Source publication | Zhou, X. (2015) - The First Photometric Analysis of the Overcontact Binary MQ UMa with an Additional Component |
| ADS link | 2015AJ....150...83Z |
| Name in Source publication | MQ UMa |
| Orbital period in days (P [d]) | 0.476058 |
| Mass ratio (q) | 0.19 |
| 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]) | 0.476058 |
| Mass ratio (q) | 0.19 |
| Orbital inclination in degrees (i [o]) | 65.6 |
| Fillout (f) | 0.83 |
| Primary temperature in Kelvins (T1 [K]) | 6352 |
| Secondary temperature in Kelvins (T2 [K]) | 6224 |
| Primary polar radius in units of orbital separation (r1p) | 0.5145 |
| Secondary polar radius in units of orbital separation (r2p) | 0.261 |
| Surface potential (Ω) | 2.1172 |
| 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]) | 6352 |
| Secondary temperature in Kelvins (T2 [K]) | 6224 |
| 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]) | 0.476058 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 13.6 |
| Designation | Gaia DR2 783867373022334592 |
|---|---|
| RA | 170:25:15.78792 |
| DEC | 43:36:52.612308 |
| l | 164.7587182 |
| b | 65.519712 |
| G magnitude | 11.41181 |
| G_bp magnitude | 11.623842 |
| G_rp magnitude | 11.066032 |
| Radial velocity [km/s] | |
| Parallax | 1.674014959 |
| Distance [pc] | 597.366227 |
| Temperature [K] | 6917.25 |
| Radius [R] | 1.855961 |
| Luminosity [L] | 7.1050353 |
| Simbad link | MQ UMa |
|---|---|
| J magnitude | 10.616 |
| H magnitude | 10.402 |
| K magnitude | 10.387 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.77 |
| Johnson_V magnitude | 11.22 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.4118 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |