UCAC4 687-086841
| Simbad link | UCAC4 687-086841 |
|---|---|
| Source publication | Poro, Atila (2025) - BSN. V. The First Detailed Light Curve Modeling of Eight Totally Eclipsing Contact Binary Stars Using Ground-based and TESS Observations |
| ADS link | 2025PASP..137l4202P |
| Name in Source publication | U687 |
| Orbital period in days (P [d]) | 0.276516 |
| Mass ratio (q) | 5.3 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 353335581 |
| Solver | BSN |
|---|---|
| Orbital period in days (P [d]) | 0.276516 |
| Mass ratio (q) | 5.3 |
| Orbital inclination in degrees (i [o]) | 72.5 |
| Fillout (f) | 0.1 |
| Primary temperature in Kelvins (T1 [K]) | 5349 |
| Secondary temperature in Kelvins (T2 [K]) | 4938 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 9.463 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | |
| Secondary mass in solar units (M2 [M]) | |
| Primary temperature in kelvins (T1 [K]) | 5349 |
| Secondary temperature in Kelvins (T2 [K]) | 4938 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Designation | Gaia DR3 2166702183544294784 |
|---|---|
| RA | 312:23:04.408237 |
| DEC | 47:18:40.54867 |
| l | 86.74722375640728 |
| b | 2.1662489563169727 |
| G [mag] | 14.307142 |
| G_bp [mag] | 14.819423 |
| G_rp [mag] | 13.636158 |
| Parallax | 1.772650672668137 |
| Distance [pc] | 557.978 |
| Temperature [K] | 5084.5254 |
| Surface gravity log(g) [cm/s2] | 4.4909 |
| Metallicity [Fe/H] | 0.4791 |
| Monochromatic extinction A0 [mag] | 0.0488 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | UCAC4 687-086841 |
|---|---|
| J magnitude | 12.883 |
| H magnitude | 12.429 |
| K magnitude | 12.281 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 15.388 |
| Johnson_V magnitude | 14.204 |
| Johnson_R magnitude | 14.442 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.993 |
| Sloan_r magnitude | 14.195 |
| Sloan_i magnitude | 13.643 |
| Sloan_z magnitude |