EZ Hya
| Simbad link | EZ Hya |
|---|---|
| Source publication | Yang, Y. -G. (2004) - A CCD Photometric Study of the W UMa-Type Binary System EZ Hydrae |
| ADS link | 2004PASP..116..826Y |
| Name in Source publication | EZ Hya |
| Orbital period in days (P [d]) | 0.449748 |
| Mass ratio (q) | 0.26 |
| Mass ratio determination | Spectroscopic |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.449748 |
| Mass ratio (q) | 0.26 |
| Orbital inclination in degrees (i [o]) | 83.3 |
| Fillout (f) | 0.34 |
| Primary temperature in Kelvins (T1 [K]) | 5721 |
| Secondary temperature in Kelvins (T2 [K]) | 6100 |
| Primary polar radius in units of orbital separation (r1p) | 0.4803 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2635 |
| Surface potential (Ω) | 2.3137 |
| Orbital separation in solar radii (a [R]) | 2.98 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.54 |
| Secondary radius in solar units (R2 [R]) | 0.85 |
| Primary mass in solar units (M1 [M]) | 1.37 |
| Secondary mass in solar units (M2 [M]) | 0.35 |
| Primary temperature in kelvins (T1 [K]) | 5721 |
| Secondary temperature in Kelvins (T2 [K]) | 6100 |
| Primary luminosity in solar units (L1 [L]) | 2.28 |
| Secondary luminosity in solar units (L2 [L]) | 0.9 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.15 |
| Orbital period in days (P [d]) | 0.449748 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 30.9 |
| Designation | Gaia DR2 5689693157269867776 |
|---|---|
| RA | 141:40:15.51036 |
| DEC | -14:14:53.649204 |
| l | 245.8062642 |
| b | 25.68510297 |
| G magnitude | 10.565955 |
| G_bp magnitude | 10.921415 |
| G_rp magnitude | 10.09213 |
| Radial velocity [km/s] | |
| Parallax | 3.985500723 |
| Distance [pc] | 250.909502 |
| Temperature [K] | 5769 |
| Radius [R] | 1.670384 |
| Luminosity [L] | 2.7843864 |
| Simbad link | EZ Hya |
|---|---|
| J magnitude | 9.378 |
| H magnitude | 9.084 |
| K magnitude | 8.936 |
| Johnson_U magnitude | 9.842 |
| Johnson_B magnitude | 11.39 |
| Johnson_V magnitude | 10.56 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 10.566 |
| Sloan_r magnitude | |
| Sloan_i magnitude | 9.842 |
| Sloan_z magnitude |