V539 Dra
| Simbad link | V539 Dra |
|---|---|
| Source publication | Kjurkchieva, Diana P. (2019) - Global Parameters of 12 Totally Eclipsing W UMa Stars |
| ADS link | 2019AJ....158..186K |
| Name in Source publication | V539 Dra |
| Orbital period in days (P [d]) | 0.333094 |
| Mass ratio (q) | 3.98 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 259171273 |
| Solver | PHOEBE |
|---|---|
| Orbital period in days (P [d]) | 0.333094 |
| Mass ratio (q) | 3.98 |
| Orbital inclination in degrees (i [o]) | 80.1 |
| Fillout (f) | 0.25 |
| Primary temperature in Kelvins (T1 [K]) | 5670 |
| Secondary temperature in Kelvins (T2 [K]) | 5440 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 7.734 |
| Orbital separation in solar radii (a [R]) | 2.32 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.65 |
| Secondary radius in solar units (R2 [R]) | 1.2 |
| Primary mass in solar units (M1 [M]) | 0.3 |
| Secondary mass in solar units (M2 [M]) | 1.2 |
| Primary temperature in kelvins (T1 [K]) | 5670 |
| Secondary temperature in Kelvins (T2 [K]) | 5440 |
| Primary luminosity in solar units (L1 [L]) | 0.4 |
| Secondary luminosity in solar units (L2 [L]) | 1.12 |
| Distance in parsecs (d [pc]) | 552 |
| Age in gigayears (τ [gyr]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 90 | 48 | 15 | 0.89 |
| Designation | Gaia DR3 2261853889746199168 |
|---|---|
| RA | 292:29:59.622875 |
| DEC | 70:12:37.429864 |
| l | 101.79301204235497 |
| b | 22.24661564882414 |
| G [mag] | 13.264805 |
| G_bp [mag] | 13.691192 |
| G_rp [mag] | 12.642653 |
| Parallax | 2.0226424814923676 |
| Distance [pc] | 488.1372 |
| Temperature [K] | 5386.5757 |
| Surface gravity log(g) [cm/s2] | 4.2276 |
| Metallicity [Fe/H] | -1.1705 |
| Monochromatic extinction A0 [mag] | 0.401 |
| Radius [R] | 1.31 |
| Luminosity [L] | 1.015 |
| Simbad link | V539 Dra |
|---|---|
| J magnitude | 11.891 |
| H magnitude | 11.52 |
| K magnitude | 11.421 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 13.1 |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.705 |
| Sloan_r magnitude | 13.102 |
| Sloan_i magnitude | |
| Sloan_z magnitude |