LU Lac
| Simbad link | LU Lac |
|---|---|
| Source publication | Liao, W. -P. (2014) - First photometric study of W UMa binary star LU Lac |
| ADS link | 2014NewA...31...65L |
| Name in Source publication | LU Lac |
| Orbital period in days (P [d]) | 0.298802 |
| Mass ratio (q) | 0.48 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.298802 |
| Mass ratio (q) | 0.48 |
| Orbital inclination in degrees (i [o]) | 82.2 |
| Fillout (f) | 0.09 |
| Primary temperature in Kelvins (T1 [K]) | 4899 |
| Secondary temperature in Kelvins (T2 [K]) | 5310 |
| Primary polar radius in units of orbital separation (r1p) | 0.4221 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3011 |
| Surface potential (Ω) | 2.8107 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | |
| Secondary mass in solar units (M2 [M]) | |
| Primary temperature in kelvins (T1 [K]) | 4899 |
| Secondary temperature in Kelvins (T2 [K]) | 5310 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.298802 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 51.92 |
| Designation | Gaia DR2 2000927376623111424 |
|---|---|
| RA | 335:25:37.88904 |
| DEC | 51:22:03.166824 |
| l | 100.5451692 |
| b | -4.877074819 |
| G magnitude | 14.138407 |
| G_bp magnitude | 14.617175 |
| G_rp magnitude | 13.475251 |
| Radial velocity [km/s] | |
| Parallax | 1.567410835 |
| Distance [pc] | 637.994824 |
| Temperature [K] | 4926.2334 |
| Radius [R] | 1.1908216 |
| Luminosity [L] | 0.7523988 |
| Simbad link | LU Lac |
|---|---|
| J magnitude | 12.55 |
| H magnitude | 12.136 |
| K magnitude | 11.994 |
| Johnson_U magnitude | 13.85 |
| Johnson_B magnitude | 15.26 |
| Johnson_V magnitude | 14.34 |
| Johnson_R magnitude | 14.13 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.86 |
| Sloan_r magnitude | 14.13 |
| Sloan_i magnitude | 13.85 |
| Sloan_z magnitude |