BX Dra
| Simbad link | BX Dra |
|---|---|
| Source publication | Park, Jang-Ho (2013) - The Light and Period Variations of the Eclipsing Binary BX Draconis |
| ADS link | 2013PASJ...65....1P |
| Name in Source publication | BX Dra |
| Orbital period in days (P [d]) | 0.579025 |
| Mass ratio (q) | 0.29 |
| Mass ratio determination | Spectroscopic |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.579025 |
| Mass ratio (q) | 0.29 |
| Orbital inclination in degrees (i [o]) | 81.8 |
| Fillout (f) | 0.6 |
| Primary temperature in Kelvins (T1 [K]) | 6980 |
| Secondary temperature in Kelvins (T2 [K]) | 6758 |
| Primary polar radius in units of orbital separation (r1p) | 0.4828 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2843 |
| Surface potential (Ω) | 2.3308 |
| Orbital separation in solar radii (a [R]) | 4.06 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.13 |
| Secondary radius in solar units (R2 [R]) | 1.28 |
| Primary mass in solar units (M1 [M]) | 2.08 |
| Secondary mass in solar units (M2 [M]) | 0.6 |
| Primary temperature in kelvins (T1 [K]) | 6980 |
| Secondary temperature in Kelvins (T2 [K]) | 6758 |
| Primary luminosity in solar units (L1 [L]) | 9.66 |
| Secondary luminosity in solar units (L2 [L]) | 3.05 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 2.32 |
| Orbital period in days (P [d]) | 0.579025 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.048816 |
| Cyclic period variation in years (Pc [y]) | 30.2 |
| Designation | Gaia DR2 1629262759606001920 |
|---|---|
| RA | 241:34:20.13384 |
| DEC | 62:45:46.246284 |
| l | 95.18025381 |
| b | 42.39136306 |
| G magnitude | 10.698428 |
| G_bp magnitude | 10.907275 |
| G_rp magnitude | 10.438047 |
| Radial velocity [km/s] | |
| Parallax | 1.918332181 |
| Distance [pc] | 521.286152 |
| Temperature [K] | 6904 |
| Radius [R] | 2.2579043 |
| Luminosity [L] | 10.435394 |
| Simbad link | BX Dra |
|---|---|
| J magnitude | 9.995 |
| H magnitude | 9.835 |
| K magnitude | 9.809 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11 |
| Johnson_V magnitude | 10.62 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 10.6984 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |