2MASS J21042404+0731381
| Simbad link | 2MASS J21042404+0731381 |
|---|---|
| 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 | 2MASS J21042404+0731381 |
| Orbital period in days (P [d]) | 0.209091 |
| Mass ratio (q) | 0.31 |
| Mass ratio determination | Photometric |
| Temperature determination | Color index |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 283483061 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.209091 |
| Mass ratio (q) | 0.31 |
| Orbital inclination in degrees (i [o]) | 78.9 |
| Fillout (f) | 0.03 |
| Primary temperature in Kelvins (T1 [K]) | 4800 |
| Secondary temperature in Kelvins (T2 [K]) | 4772 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.471 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.75 |
| Secondary radius in solar units (R2 [R]) | 0.41 |
| Primary mass in solar units (M1 [M]) | 0.81 |
| Secondary mass in solar units (M2 [M]) | 0.25 |
| Primary temperature in kelvins (T1 [K]) | 4800 |
| Secondary temperature in Kelvins (T2 [K]) | 4772 |
| Primary luminosity in solar units (L1 [L]) | 0.27 |
| Secondary luminosity in solar units (L2 [L]) | 0.08 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.209091 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.028434 |
| Cyclic period variation in years (Pc [y]) | 2.78 |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 16.6 | 26.6 | 0.672 |
| Designation | Gaia DR3 1737193741566061696 |
|---|---|
| RA | 316:06:00.796606 |
| DEC | 7:31:38.288419 |
| l | 56.65540598561308 |
| b | -25.082123511604053 |
| G [mag] | 14.76735 |
| G_bp [mag] | 15.374039 |
| G_rp [mag] | 13.970642 |
| Parallax | 1.8920565107255265 |
| Distance [pc] | 507.6248 |
| Temperature [K] | 4357.0073 |
| Surface gravity log(g) [cm/s2] | 4.2987 |
| Metallicity [Fe/H] | -0.6872 |
| Monochromatic extinction A0 [mag] | 0.0197 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | 2MASS J21042404+0731381 |
|---|---|
| J magnitude | 12.821 |
| H magnitude | 12.289 |
| K magnitude | 12.13 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |