V344 Lac
| Simbad link | V344 Lac |
|---|---|
| Source publication | Liu, Liang (2020) - The contact binary V344 Lacertae: is it a triple system? |
| ADS link | 2020Ap&SS.365...71L |
| Name in Source publication | V344 Lac |
| Orbital period in days (P [d]) | 0.392241 |
| Mass ratio (q) | 0.39 |
| 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]) | 0.392241 |
| Mass ratio (q) | 0.39 |
| Orbital inclination in degrees (i [o]) | 70.3 |
| Fillout (f) | 0.45 |
| Primary temperature in Kelvins (T1 [K]) | 6312 |
| Secondary temperature in Kelvins (T2 [K]) | 6201 |
| Primary polar radius in units of orbital separation (r1p) | 0.4559 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3019 |
| Surface potential (Ω) | 2.5457 |
| Orbital separation in solar radii (a [R]) | 2.64 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.31 |
| Secondary radius in solar units (R2 [R]) | 0.88 |
| Primary mass in solar units (M1 [M]) | 1.16 |
| Secondary mass in solar units (M2 [M]) | 0.45 |
| Primary temperature in kelvins (T1 [K]) | 6312 |
| Secondary temperature in Kelvins (T2 [K]) | 6201 |
| Primary luminosity in solar units (L1 [L]) | 2.51 |
| Secondary luminosity in solar units (L2 [L]) | 1.06 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 4.45 |
| Orbital period in days (P [d]) | 0.392241 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 12.4 |
| Simbad link | V344 Lac |
|---|---|
| J magnitude | 11.417 |
| H magnitude | 11.186 |
| K magnitude | 11.121 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.3044 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |