USNO-A2.0 1200-18678842
| Simbad link | USNO-A2.0 1200-18678842 |
|---|---|
| Source publication | Elkhateeb, M. M. (2015) - Photometric solution and evolutionary state for the newly discovered W UMa systems GSC-02137-0222 and USNO-A2.0 1200-18678842 |
| ADS link | 2015NewA...34...47E |
| Name in Source publication | USNO-A2.0 1200-18678842 |
| Orbital period in days (P [d]) | 0.442868 |
| Mass ratio (q) | 0.3 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.442868 |
| Mass ratio (q) | 0.3 |
| Orbital inclination in degrees (i [o]) | 53.2 |
| Fillout (f) | 0 |
| Primary temperature in Kelvins (T1 [K]) | 5767 |
| Secondary temperature in Kelvins (T2 [K]) | 5562 |
| Primary polar radius in units of orbital separation (r1p) | 0.456 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2614 |
| Surface potential (Ω) | 2.466 |
| Orbital separation in solar radii (a [R]) | 2.76 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.2 |
| Secondary radius in solar units (R2 [R]) | 1.14 |
| Primary mass in solar units (M1 [M]) | 1.11 |
| Secondary mass in solar units (M2 [M]) | 0.33 |
| Primary temperature in kelvins (T1 [K]) | 5767 |
| Secondary temperature in Kelvins (T2 [K]) | 5562 |
| Primary luminosity in solar units (L1 [L]) | 1.44 |
| Secondary luminosity in solar units (L2 [L]) | 1.11 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.64 |
| Designation | Gaia DR2 1949139966627224704 |
|---|---|
| RA | 328:37:32.0718 |
| DEC | 35:51:45.984708 |
| l | 87.21167282 |
| b | -14.45677808 |
| G [mag] | 14.586267 |
| G_bp [mag] | 14.980405 |
| G_rp [mag] | 14.012636 |
| Parallax | 0.386791989 |
| Distance [pc] | 2.1E-09 |
| Temperature [K] | 5290.5 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 3.2900746 |
| Luminosity [L] | 7.6399946 |
| Simbad link | USNO-A2.0 1200-18678842 |
|---|---|
| J magnitude | 13.288 |
| H magnitude | 12.962 |
| K magnitude | 12.853 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 15.7 |
| Johnson_V magnitude | 15.1 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.5863 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |