AU Ser
| Simbad link | AU Ser |
|---|---|
| Source publication | Alton, K. B. (2018) - Period Analysis, Roche Modeling and Absolute Parameters for AU Ser, an Overcontact Binary System |
| ADS link | 2018IBVS.6256....1A |
| Name in Source publication | AU Ser |
| Orbital period in days (P [d]) | 0.386497 |
| Mass ratio (q) | 0.69 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | PHOEBE |
|---|---|
| Orbital period in days (P [d]) | 0.386497 |
| Mass ratio (q) | 0.69 |
| Orbital inclination in degrees (i [o]) | 82.4 |
| Fillout (f) | 0.04 |
| Primary temperature in Kelvins (T1 [K]) | 5140 |
| Secondary temperature in Kelvins (T2 [K]) | 4986 |
| Primary polar radius in units of orbital separation (r1p) | 0.3894 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3281 |
| Surface potential (Ω) | 3.213 |
| Orbital separation in solar radii (a [R]) | 2.52 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.04 |
| Secondary radius in solar units (R2 [R]) | 0.88 |
| Primary mass in solar units (M1 [M]) | 0.85 |
| Secondary mass in solar units (M2 [M]) | 0.59 |
| Primary temperature in kelvins (T1 [K]) | 5140 |
| Secondary temperature in Kelvins (T2 [K]) | 4986 |
| Primary luminosity in solar units (L1 [L]) | 0.68 |
| Secondary luminosity in solar units (L2 [L]) | 0.43 |
| Distance in parsecs (d [pc]) | 164 |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.386497 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.010195 |
| Cyclic period variation in years (Pc [y]) | 31.36 |
| Designation | Gaia DR2 1218233805261820288 |
|---|---|
| RA | 239:12:21.456 |
| DEC | 22:16:00.830136 |
| l | 36.85725232 |
| b | 47.84430849 |
| G [mag] | 10.876471 |
| G_bp [mag] | 11.325504 |
| G_rp [mag] | 10.248246 |
| Parallax | 6.102533915 |
| Distance [pc] | 1.04E-09 |
| Temperature [K] | 5006.63 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 1.3179631 |
| Luminosity [L] | 0.9832935 |
| Temperature [K] | 5321.26 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.39 |
| Metallicity [Fe/H] | 0.347 |
| Simbad link | AU Ser |
|---|---|
| J magnitude | 9.311 |
| H magnitude | 8.945 |
| K magnitude | 8.802 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.76 |
| Johnson_V magnitude | 11.04 |
| Johnson_R magnitude | 10.93 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 10.8765 |
| Sloan_r magnitude | 10.93 |
| Sloan_i magnitude | |
| Sloan_z magnitude |