V694 Peg
| Simbad link | V694 Peg |
|---|---|
| Source publication | Loukaidou, G. A. (2022) - CoBiToM Project - II. Evolution of contact binary systems close to the orbital period cut-off |
| ADS link | 2022MNRAS.514.5528L |
| Name in Source publication | 1SWASP J212808.86+151622.0 |
| Orbital period in days (P [d]) | 0.224842 |
| Mass ratio (q) | 2.11 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 426893937 |
| Solver | DC |
|---|---|
| Orbital period in days (P [d]) | 0.224842 |
| Mass ratio (q) | 2.11 |
| Orbital inclination in degrees (i [o]) | 75.4 |
| Fillout (f) | 0.16 |
| Primary temperature in Kelvins (T1 [K]) | 4700 |
| Secondary temperature in Kelvins (T2 [K]) | 4342 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 5.305 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.78 |
| Secondary radius in solar units (R2 [R]) | 0.53 |
| Primary mass in solar units (M1 [M]) | 0.84 |
| Secondary mass in solar units (M2 [M]) | 0.4 |
| Primary temperature in kelvins (T1 [K]) | 4700 |
| Secondary temperature in Kelvins (T2 [K]) | 4342 |
| Primary luminosity in solar units (L1 [L]) | 0.26 |
| Secondary luminosity in solar units (L2 [L]) | 0.09 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.224842 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 13.57 |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 155.4 | 35.7 | 0.853 |
| Designation | Gaia DR3 1771574954770894336 |
|---|---|
| RA | 322:02:13.337157 |
| DEC | 15:16:21.960422 |
| l | 67.34652127955721 |
| b | -24.977304530189105 |
| G [mag] | 14.527382 |
| G_bp [mag] | 15.216334 |
| G_rp [mag] | 13.741059 |
| Parallax | 2.5785308696812272 |
| Distance [pc] | 380.224 |
| Temperature [K] | 4464.4395 |
| Surface gravity log(g) [cm/s2] | 4.5577 |
| Metallicity [Fe/H] | 0.4685 |
| Monochromatic extinction A0 [mag] | 0.0541 |
| Radius [R] | 0.81312 |
| Luminosity [L] | 0.23193921 |
| Simbad link | V694 Peg |
|---|---|
| J magnitude | 12.677 |
| H magnitude | 12.063 |
| K magnitude | 11.904 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 16.108 |
| Johnson_V magnitude | 14.49 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 15.494 |
| Sloan_r magnitude | 14.493 |
| Sloan_i magnitude | |
| Sloan_z magnitude |