GW Tau
| Simbad link | GW Tau |
|---|---|
| Source publication | Zhu, Liying (2006) - BL Andromedae and GW Tauri: close binary stars in a key evolutionary stage |
| ADS link | 2006MNRAS.367..423Z |
| Name in Source publication | GW Tau |
| Orbital period in days (P [d]) | 0.641359 |
| Mass ratio (q) | 0.31 |
| Mass ratio determination | Photometric |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.641359 |
| Mass ratio (q) | 0.31 |
| Orbital inclination in degrees (i [o]) | 88.3 |
| Fillout (f) | 0.15 |
| Primary temperature in Kelvins (T1 [K]) | 8750 |
| Secondary temperature in Kelvins (T2 [K]) | 5667 |
| Primary polar radius in units of orbital separation (r1p) | 0.4578 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2709 |
| Surface potential (Ω) | 2.4706 |
| Orbital separation in solar radii (a [R]) | 4.8 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.35 |
| Secondary radius in solar units (R2 [R]) | 1.38 |
| Primary mass in solar units (M1 [M]) | 2.75 |
| Secondary mass in solar units (M2 [M]) | 0.85 |
| Primary temperature in kelvins (T1 [K]) | 8750 |
| Secondary temperature in Kelvins (T2 [K]) | 5667 |
| Primary luminosity in solar units (L1 [L]) | 29 |
| Secondary luminosity in solar units (L2 [L]) | 1.7 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 7.08 |
| Orbital period in days (P [d]) | 0.641359 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.036461 |
| Cyclic period variation in years (Pc [y]) | 86.6 |
| Designation | Gaia DR2 150983704071647744 |
|---|---|
| RA | 67:32:21.967008 |
| DEC | 25:32:26.750436 |
| l | 172.7571199 |
| b | -15.52507704 |
| G magnitude | 10.835946 |
| G_bp magnitude | 11.175199 |
| G_rp magnitude | 10.35033 |
| Radial velocity [km/s] | |
| Parallax | 2.44227939 |
| Distance [pc] | 409.453564 |
| Temperature [K] | 5801 |
| Radius [R] | 2.37838 |
| Luminosity [L] | 5.771234 |
| Simbad link | GW Tau |
|---|---|
| J magnitude | 9.627 |
| H magnitude | 9.427 |
| K magnitude | 9.305 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.59 |
| Johnson_V magnitude | 10.86 |
| Johnson_R magnitude | 10.42 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 10.8359 |
| Sloan_r magnitude | 10.42 |
| Sloan_i magnitude | |
| Sloan_z magnitude |