S Ant

Simbad link S Ant
Source publication Russo, G. (1982) - Determination of parameters of W UMa system. II : TW Cet, S Ant, U Peg, ER Ori.
ADS link 1982A&AS...47..211R
Name in Source publication S Ant
Orbital period in days (P [d]) 0.648336
Mass ratio (q) 0.59
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]) 0.648336
Mass ratio (q) 0.59
Orbital inclination in degrees (i [o]) 69.5
Fillout (f) 0.09
Primary temperature in Kelvins (T1 [K]) 7800
Secondary temperature in Kelvins (T2 [K]) 7340
Primary polar radius in units of orbital separation (r1p) 0.4053
Secondary polar radius in units of orbital separation (r2p) 0.3179
Surface potential (Ω) 3.014

Orbital separation in solar radii (a [R]) 3.41
Primary radius in solar units (R1 [R]) 1.46
Secondary radius in solar units (R2 [R]) 1.13
Primary mass in solar units (M1 [M]) 0.79
Secondary mass in solar units (M2 [M]) 0.47
Primary temperature in kelvins (T1 [K]) 7800
Secondary temperature in Kelvins (T2 [K]) 7340
Primary luminosity in solar units (L1 [L]) 7.07
Secondary luminosity in solar units (L2 [L]) 3.32
Distance in parsecs (d [pc])
Age in gigayears (τ [gyr]) 1.94

Orbital period in days (P [d]) 0.648336
Monotonic period variation in seconds per year (dPdt [s/y]) 0.007154
Cyclic period variation in years (Pc [y])
Period study Qian, Shengbang (2001) - Orbital period changes of contact binary systems: direct evidence for thermal relaxation oscillation theory
ADS link 2001MNRAS.328..914Q

Designation Gaia DR2 5633777360297734016
RA 143:04:34.21884
DEC -29:22:20.714052
l 258.5481526
b 16.61444692
G magnitude 6.4964027
G_bp magnitude 6.685366
G_rp magnitude 6.1824064
Radial velocity [km/s]
Parallax 12.51207717
Distance [pc] 0.079923
Temperature [K] 7178.16
Radius [R] 2.2238226
Luminosity [L] 11.828986

Simbad link S Ant
J magnitude 6.087
H magnitude 5.96
K magnitude 5.865
Johnson_U magnitude
Johnson_B magnitude 6.77
Johnson_V magnitude 6.45
Johnson_R magnitude
Johnson_I magnitude
Sloan_u magnitude
Sloan_g magnitude 6.4964
Sloan_r magnitude
Sloan_i magnitude
Sloan_z magnitude

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