V1128 Tau
| Simbad link | V1128 Tau |
|---|---|
| Source publication | Çalışkan, Ş. (2014) - Photometric Analysis of Overcontact Binaries AK Her, HI Dra, V1128 Tau, and V2612 Oph |
| ADS link | 2014AJ....148..126C |
| Name in Source publication | V1128 Tau |
| Orbital period in days (P [d]) | 0.305371 |
| Mass ratio (q) | 0.53 |
| Mass ratio determination | Spectroscopic |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | DC |
|---|---|
| Orbital period in days (P [d]) | 0.305371 |
| Mass ratio (q) | 0.53 |
| Orbital inclination in degrees (i [o]) | 86 |
| Fillout (f) | 0.13 |
| Primary temperature in Kelvins (T1 [K]) | 6200 |
| Secondary temperature in Kelvins (T2 [K]) | 6400 |
| Primary polar radius in units of orbital separation (r1p) | 0.4158 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3122 |
| Surface potential (Ω) | 2.8982 |
| Orbital separation in solar radii (a [R]) | 2.27 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.01 |
| Secondary radius in solar units (R2 [R]) | 0.76 |
| Primary mass in solar units (M1 [M]) | 1.1 |
| Secondary mass in solar units (M2 [M]) | 0.58 |
| Primary temperature in kelvins (T1 [K]) | 6200 |
| Secondary temperature in Kelvins (T2 [K]) | 6400 |
| Primary luminosity in solar units (L1 [L]) | 1.29 |
| Secondary luminosity in solar units (L2 [L]) | 0.84 |
| Distance in parsecs (d [pc]) | 139 |
| Age in gigayears (τ [gyr]) | 4.32 |
| Orbital period in days (P [d]) | 0.305371 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.002989 |
| Cyclic period variation in years (Pc [y]) | 12.54 |
| Designation | Gaia DR2 37141885040921216 |
|---|---|
| RA | 57:21:55.869048 |
| DEC | 12:54:44.512092 |
| l | 175.8796194 |
| b | -31.11611673 |
| G magnitude | 9.565011 |
| G_bp magnitude | 9.916557 |
| G_rp magnitude | 9.070279 |
| Radial velocity [km/s] | |
| Parallax | 10.05535847 |
| Distance [pc] | 99.449463 |
| Temperature [K] | 5732.5 |
| Radius [R] | 1.0644268 |
| Luminosity [L] | 1.1023068 |
| Simbad link | V1128 Tau |
|---|---|
| J magnitude | 8.848 |
| H magnitude | 8.475 |
| K magnitude | 8.394 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 10.3 |
| Johnson_V magnitude | 9.64 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 9.565 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |