AA UMa
| Simbad link | AA UMa |
|---|---|
| Source publication | Lee, Jae Woo (2011) - The Light and Period Variations of the Eclipsing Binary AA Ursae Majoris |
| ADS link | 2011PASP..123...34L |
| Name in Source publication | AA UMa |
| Orbital period in days (P [d]) | 0.468135 |
| Mass ratio (q) | 0.55 |
| Mass ratio determination | Spectroscopic |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.468135 |
| Mass ratio (q) | 0.55 |
| Orbital inclination in degrees (i [o]) | 79.6 |
| Fillout (f) | 0.14 |
| Primary temperature in Kelvins (T1 [K]) | 5920 |
| Secondary temperature in Kelvins (T2 [K]) | 5964 |
| Primary polar radius in units of orbital separation (r1p) | 0.4138 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3152 |
| Surface potential (Ω) | 2.9255 |
| Orbital separation in solar radii (a [R]) | 3.44 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.53 |
| Secondary radius in solar units (R2 [R]) | 1.17 |
| Primary mass in solar units (M1 [M]) | 1.61 |
| Secondary mass in solar units (M2 [M]) | 0.89 |
| Primary temperature in kelvins (T1 [K]) | 5920 |
| Secondary temperature in Kelvins (T2 [K]) | 5964 |
| Primary luminosity in solar units (L1 [L]) | 2.57 |
| Secondary luminosity in solar units (L2 [L]) | 1.55 |
| Distance in parsecs (d [pc]) | 351 |
| Age in gigayears (τ [gyr]) | 2.75 |
| Orbital period in days (P [d]) | 0.468135 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.004044 |
| Cyclic period variation in years (Pc [y]) | 28.2 |
| Designation | Gaia DR2 821434970926235904 |
|---|---|
| RA | 146:44:49.27128 |
| DEC | 45:45:56.351412 |
| l | 173.2483454 |
| b | 49.21015963 |
| G magnitude | 11.162122 |
| G_bp magnitude | 11.448671 |
| G_rp magnitude | 10.628027 |
| Radial velocity [km/s] | |
| Parallax | 3.016103155 |
| Distance [pc] | 331.553647 |
| Temperature [K] | 5737 |
| Radius [R] | 1.6978458 |
| Luminosity [L] | 2.8133943 |
| Simbad link | AA UMa |
|---|---|
| J magnitude | 9.972 |
| H magnitude | 9.673 |
| K magnitude | 9.605 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.48 |
| Johnson_V magnitude | 11.71 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.1621 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |