EG CVn
| Simbad link | EG CVn |
|---|---|
| Source publication | Hu, Ke (2022) - First photometric and orbital period investigations of four W UMa-type eclipse binaries |
| ADS link | 2022PASA...39...57H |
| Name in Source publication | EG CVn |
| Orbital period in days (P [d]) | 0.349276 |
| Mass ratio (q) | 3.82 |
| Mass ratio determination | Photometric |
| Temperature determination | Color index |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 22847364 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.349276 |
| Mass ratio (q) | 3.82 |
| Orbital inclination in degrees (i [o]) | 77.1 |
| Fillout (f) | 0.57 |
| Primary temperature in Kelvins (T1 [K]) | 6304 |
| Secondary temperature in Kelvins (T2 [K]) | 6178 |
| Primary polar radius in units of orbital separation (r1p) | 0.2747 |
| Secondary polar radius in units of orbital separation (r2p) | 0.4865 |
| Surface potential (Ω) | 7.32 |
| Orbital separation in solar radii (a [R]) | 2.46 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.72 |
| Secondary radius in solar units (R2 [R]) | 1.27 |
| Primary mass in solar units (M1 [M]) | 0.34 |
| Secondary mass in solar units (M2 [M]) | 1.3 |
| Primary temperature in kelvins (T1 [K]) | 6304 |
| Secondary temperature in Kelvins (T2 [K]) | 6178 |
| Primary luminosity in solar units (L1 [L]) | 0.73 |
| Secondary luminosity in solar units (L2 [L]) | 2.15 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.349276 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.023242 |
| Cyclic period variation in years (Pc [y]) | 22.95 |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 219.1 | 15.4 | 0.81 |
| Designation | Gaia DR3 1472525006244290432 |
|---|---|
| RA | 204:21:32.643338 |
| DEC | 37:34:59.596106 |
| l | 82.99696639853778 |
| b | 75.7521122392081 |
| G [mag] | 12.863843 |
| G_bp [mag] | 13.123298 |
| G_rp [mag] | 12.458035 |
| Parallax | 1.487412440511104 |
| Distance [pc] | 662.8295 |
| Temperature [K] | 6438.5215 |
| Surface gravity log(g) [cm/s2] | 4.2993 |
| Metallicity [Fe/H] | -0.2737 |
| Monochromatic extinction A0 [mag] | 0.0078 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | EG CVn |
|---|---|
| J magnitude | 12.051 |
| H magnitude | 11.761 |
| K magnitude | 11.742 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 13.06 |
| Johnson_R magnitude | 12.89 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.135 |
| Sloan_r magnitude | 12.841 |
| Sloan_i magnitude | |
| Sloan_z magnitude |