AP UMi
| Simbad link | AP UMi |
|---|---|
| Source publication | Awadalla, N. S. (2016) - New CCD Observations and the First Photometric Study of the Contact Binary AP UMi |
| ADS link | 2016JKAS...49...65H |
| Name in Source publication | GSC 4405-00129 |
| Orbital period in days (P [d]) | 0.258287 |
| Mass ratio (q) | 0.39 |
| Mass ratio determination | Photometric |
| Temperature determination | Spectral type |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | PHOEBE |
|---|---|
| Orbital period in days (P [d]) | 0.258287 |
| Mass ratio (q) | 0.39 |
| Orbital inclination in degrees (i [o]) | 81.3 |
| Fillout (f) | 0.28 |
| Primary temperature in Kelvins (T1 [K]) | 4500 |
| Secondary temperature in Kelvins (T2 [K]) | 3865 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.604 |
| 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]) | 4500 |
| Secondary temperature in Kelvins (T2 [K]) | 3865 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 110 | 80 | 9 | 0.2 |
| Secondary | 110 | 90 | 5 | 1.55 |
| Designation | Gaia DR3 1686639605669721856 |
|---|---|
| RA | 205:43:20.067864 |
| DEC | 70:01:49.552831 |
| l | 116.59542618843008 |
| b | 46.459672702844195 |
| G [mag] | 14.515517 |
| G_bp [mag] | 15.010073 |
| G_rp [mag] | 13.728222 |
| Parallax | 1.7593599027224238 |
| Distance [pc] | |
| Temperature [K] | |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 0.99 |
| Luminosity [L] | 0.504 |
| Simbad link | AP UMi |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 15.168 |
| Sloan_r magnitude | 14.305 |
| Sloan_i magnitude | |
| Sloan_z magnitude |