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
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 magnitude 10.876471
G_bp magnitude 11.325504
G_rp magnitude 10.248246
Radial velocity [km/s]
Parallax 6.102533915
Distance [pc] 163.866357
Temperature [K] 5006.63
Radius [R] 1.3179631
Luminosity [L] 0.9832935

Orbital period [d] 0.386498
Temperature [K] 5321.26
Surface gravity (log(g)) 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

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