V724 And
| Simbad link | V724 And |
|---|---|
| Source publication | Wang, Shuang (2022) - Photometric and Spectroscopic Studies for Two Magnetic-activity Contact Binaries: V724 And and QR Com |
| ADS link | 2022RAA....22k5004W |
| Name in Source publication | V724 And |
| Orbital period in days (P [d]) | 0.268176 |
| Mass ratio (q) | 2.31 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.268176 |
| Mass ratio (q) | 2.31 |
| Orbital inclination in degrees (i [o]) | 84 |
| Fillout (f) | 0.12 |
| Primary temperature in Kelvins (T1 [K]) | 5376 |
| Secondary temperature in Kelvins (T2 [K]) | 5276 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 5.612 |
| Orbital separation in solar radii (a [R]) | 1.87 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.59 |
| Secondary radius in solar units (R2 [R]) | 0.86 |
| Primary mass in solar units (M1 [M]) | 0.37 |
| Secondary mass in solar units (M2 [M]) | 0.85 |
| Primary temperature in kelvins (T1 [K]) | 5376 |
| Secondary temperature in Kelvins (T2 [K]) | 5276 |
| Primary luminosity in solar units (L1 [L]) | 0.26 |
| Secondary luminosity in solar units (L2 [L]) | 0.52 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.268176 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.014342 |
| Cyclic period variation in years (Pc [y]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Secondary | 77.2 | 10.8 | 0.74 |
| Designation | Gaia DR3 2807504883128329216 |
|---|---|
| RA | 8:10:56.92362 |
| DEC | 25:06:41.687061 |
| l | 117.5873497947912 |
| b | -37.56595182944703 |
| G [mag] | 13.477062 |
| G_bp [mag] | 13.846739 |
| G_rp [mag] | 12.8010435 |
| Parallax | 2.2916648506665687 |
| Distance [pc] | |
| Temperature [K] | |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | |
| Luminosity [L] |
| Temperature [K] | 5211.67 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.157 |
| Metallicity [Fe/H] | -0.475 |
| Simbad link | V724 And |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 13.38 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.941 |
| Sloan_r magnitude | 13.316 |
| Sloan_i magnitude | |
| Sloan_z magnitude |