TU Boo
| Simbad link | TU Boo |
|---|---|
| Source publication | Coughlin, Jeffrey L. (2008) - Long-Term Photometric Analysis of the Active W UMa-Type System TU Bootis |
| ADS link | 2008AJ....136.1089C |
| Name in Source publication | TU Boo |
| Orbital period in days (P [d]) | 0.324284 |
| Mass ratio (q) | 0.5 |
| 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]) | 0.324284 |
| Mass ratio (q) | 0.5 |
| Orbital inclination in degrees (i [o]) | 89.2 |
| Fillout (f) | 0.11 |
| Primary temperature in Kelvins (T1 [K]) | 5900 |
| Secondary temperature in Kelvins (T2 [K]) | 5870 |
| Primary polar radius in units of orbital separation (r1p) | 0.4204 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3049 |
| Surface potential (Ω) | 2.8365 |
| Orbital separation in solar radii (a [R]) | 2.29 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.03 |
| Secondary radius in solar units (R2 [R]) | 0.75 |
| Primary mass in solar units (M1 [M]) | 1.03 |
| Secondary mass in solar units (M2 [M]) | 0.51 |
| Primary temperature in kelvins (T1 [K]) | 5900 |
| Secondary temperature in Kelvins (T2 [K]) | 5870 |
| Primary luminosity in solar units (L1 [L]) | 1.11 |
| Secondary luminosity in solar units (L2 [L]) | 0.57 |
| Distance in parsecs (d [pc]) | 290 |
| Age in gigayears (τ [gyr]) | 9.01 |
| Orbital period in days (P [d]) | 0.324284 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.029894 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 1453346327999716224 |
|---|---|
| RA | 211:14:30.65676 |
| DEC | 30:00:01.802232 |
| l | 47.3590128 |
| b | 73.62048104 |
| G magnitude | 11.495241 |
| G_bp magnitude | 11.803577 |
| G_rp magnitude | 10.952092 |
| Radial velocity [km/s] | |
| Parallax | 3.834421122 |
| Distance [pc] | 260.795559 |
| Temperature [K] | 5757 |
| Radius [R] | 1.1368818 |
| Luminosity [L] | 1.2791169 |
| Orbital period [d] | 0.3242868 |
|---|---|
| Temperature [K] | 5769.855 |
| Surface gravity (log(g)) | 4.23 |
| Metallicity ([Fe/H]) | -0.061 |
| Simbad link | TU Boo |
|---|---|
| J magnitude | 10.306 |
| H magnitude | 10.002 |
| K magnitude | 9.934 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.22 |
| Johnson_V magnitude | 11.61 |
| Johnson_R magnitude | 12.09 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.4952 |
| Sloan_r magnitude | 12.09 |
| Sloan_i magnitude | |
| Sloan_z magnitude |