V574 Lyr
| Simbad link | V574 Lyr |
|---|---|
| Source publication | Long, Liu (2019) - Spectroscopic and photometric studies of four W UMa-type eclipsing binaries |
| ADS link | 2019MNRAS.487.5520L |
| Name in Source publication | V574 Lyr |
| Orbital period in days (P [d]) | 0.273126 |
| Mass ratio (q) | 0.95 |
| 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]) | 0.273126 |
| Mass ratio (q) | 0.95 |
| Orbital inclination in degrees (i [o]) | 76 |
| Fillout (f) | 0.1 |
| Primary temperature in Kelvins (T1 [K]) | 4929 |
| Secondary temperature in Kelvins (T2 [K]) | 4690 |
| Primary polar radius in units of orbital separation (r1p) | 0.3671 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3585 |
| Surface potential (Ω) | 3.616 |
| Orbital separation in solar radii (a [R]) | 1.95 |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | 0.69 |
| Secondary mass in solar units (M2 [M]) | 0.65 |
| Primary temperature in kelvins (T1 [K]) | 4929 |
| Secondary temperature in Kelvins (T2 [K]) | 4690 |
| 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]) | 0.273126 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 12.37 |
| Simbad link | V574 Lyr |
|---|---|
| J magnitude | 10.686 |
| H magnitude | 10.169 |
| K magnitude | 10.079 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.3 |
| Johnson_V magnitude | 12.289 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.4252 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |