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] | 79.922781 |
| 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 |