1SWASP J212454.61+203030.8
| Simbad link | 1SWASP J212454.61+203030.8 |
|---|---|
| Source publication | Loukaidou, G. A. (2022) - CoBiToM Project - II. Evolution of contact binary systems close to the orbital period cut-off |
| ADS link | 2022MNRAS.514.5528L |
| Name in Source publication | 1SWASP J212454.61+203030.8 |
| Orbital period in days (P [d]) | 0.227831 |
| Mass ratio (q) | 0.43 |
| Mass ratio determination | Photometric |
| Temperature determination | Color index |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.227831 |
| Mass ratio (q) | 0.43 |
| Orbital inclination in degrees (i [o]) | 89 |
| Fillout (f) | 0.05 |
| Primary temperature in Kelvins (T1 [K]) | 5250 |
| Secondary temperature in Kelvins (T2 [K]) | 5264 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.721 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.78 |
| Secondary radius in solar units (R2 [R]) | 0.5 |
| Primary mass in solar units (M1 [M]) | 0.85 |
| Secondary mass in solar units (M2 [M]) | 0.36 |
| Primary temperature in kelvins (T1 [K]) | 5250 |
| Secondary temperature in Kelvins (T2 [K]) | 5264 |
| Primary luminosity in solar units (L1 [L]) | 0.42 |
| Secondary luminosity in solar units (L2 [L]) | 0.17 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.227831 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 8.78 |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 354.9 | 40 | 0.963 |
| Designation | Gaia DR3 1790346504475031040 |
|---|---|
| RA | 321:13:37.774383 |
| DEC | 20:30:30.308849 |
| l | 71.08459669924062 |
| b | -20.95636956210877 |
| G [mag] | 15.078977 |
| G_bp [mag] | 15.601164 |
| G_rp [mag] | 14.35322 |
| Parallax | 1.7396955711011588 |
| Distance [pc] | 558.5931 |
| Temperature [K] | 5012.2114 |
| Surface gravity log(g) [cm/s2] | 4.6143 |
| Metallicity [Fe/H] | 0.0302 |
| Monochromatic extinction A0 [mag] | 0.2805 |
| Radius [R] | |
| Luminosity [L] |
| Temperature [K] | 4781.08 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.283 |
| Metallicity [Fe/H] | -0.683 |
| Simbad link | 1SWASP J212454.61+203030.8 |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 14.35 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 15.789 |
| Sloan_r magnitude | 15.003 |
| Sloan_i magnitude | |
| Sloan_z magnitude |