V502 Oph
| Simbad link | V502 Oph |
|---|---|
| Source publication | Gazeas, K. (2021) - Physical parameters of close binary systems: VIII |
| ADS link | 2021MNRAS.501.2897G |
| Name in Source publication | V502 Oph |
| Orbital period in days (P [d]) | 0.453386 |
| Mass ratio (q) | 2.91 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Spectral type |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 282056563 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.453386 |
| Mass ratio (q) | 2.91 |
| Orbital inclination in degrees (i [o]) | 71.4 |
| Fillout (f) | 0.28 |
| Primary temperature in Kelvins (T1 [K]) | 5920 |
| Secondary temperature in Kelvins (T2 [K]) | 5850 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 6.327 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.53 |
| Secondary radius in solar units (R2 [R]) | 0.93 |
| Primary mass in solar units (M1 [M]) | 1.48 |
| Secondary mass in solar units (M2 [M]) | 0.5 |
| Primary temperature in kelvins (T1 [K]) | 5920 |
| Secondary temperature in Kelvins (T2 [K]) | 5850 |
| Primary luminosity in solar units (L1 [L]) | 2.48 |
| Secondary luminosity in solar units (L2 [L]) | 0.95 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.453386 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.014602 |
| Cyclic period variation in years (Pc [y]) | 18.7 |
| Period study | Xiao, Zhou (2016) - Physical properties and evolutionary status of the W-subtype contact binary V502 Oph with a stellar companion |
| ADS link | 2016PASJ...68..102X |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 226 | 45.5 | 0.475 |
| Designation | Gaia DR3 4383725101572110720 |
|---|---|
| RA | 250:20:12.505195 |
| DEC | 0:30:27.738692 |
| l | 17.215629131877577 |
| b | 28.849393137250892 |
| G [mag] | 8.445568 |
| G_bp [mag] | 8.746148 |
| G_rp [mag] | 7.950474 |
| Parallax | 10.374362094500793 |
| Distance [pc] | 96.0813 |
| Temperature [K] | 5872.4146 |
| Surface gravity log(g) [cm/s2] | 4.1369 |
| Metallicity [Fe/H] | 0.3168 |
| Monochromatic extinction A0 [mag] | 0.0012 |
| Radius [R] | 1.6453192 |
| Luminosity [L] | 2.9399796 |
| Simbad link | V502 Oph |
|---|---|
| J magnitude | 7.342 |
| H magnitude | 7.112 |
| K magnitude | 6.997 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 9.15 |
| Johnson_V magnitude | 8.5 |
| Johnson_R magnitude | |
| Johnson_I magnitude | 7.865 |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |