DF Hya
| Simbad link | DF Hya |
|---|---|
| Source publication | Kamenidis, I. (2012) - The contact system DF Hya revisited |
| ADS link | 2012hell.conf...28K |
| Name in Source publication | DF Hya |
| Orbital period in days (P [d]) | 0.330602 |
| Mass ratio (q) | 0.42 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | PHOEBE |
|---|---|
| Orbital period in days (P [d]) | 0.330602 |
| Mass ratio (q) | 0.42 |
| Orbital inclination in degrees (i [o]) | 84.8 |
| Fillout (f) | 0.17 |
| Primary temperature in Kelvins (T1 [K]) | 5620 |
| Secondary temperature in Kelvins (T2 [K]) | 6000 |
| Primary polar radius in units of orbital separation (r1p) | 0.4364 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2944 |
| Surface potential (Ω) | 2.6765 |
| Orbital separation in solar radii (a [R]) | 3.08 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.44 |
| Secondary radius in solar units (R2 [R]) | 0.97 |
| Primary mass in solar units (M1 [M]) | 2.5 |
| Secondary mass in solar units (M2 [M]) | 1.07 |
| Primary temperature in kelvins (T1 [K]) | 5620 |
| Secondary temperature in Kelvins (T2 [K]) | 6000 |
| Primary luminosity in solar units (L1 [L]) | 2.41 |
| Secondary luminosity in solar units (L2 [L]) | 1.1 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.330602 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 583594147522154368 |
|---|---|
| RA | 133:45:33.81768 |
| DEC | 6:05:37.417294 |
| l | 222.1433608 |
| b | 30.18986134 |
| G magnitude | 10.80326 |
| G_bp magnitude | 11.122781 |
| G_rp magnitude | 10.266211 |
| Radial velocity [km/s] | |
| Parallax | 5.263666784 |
| Distance [pc] | 189.981631 |
| Temperature [K] | 5645.6665 |
| Radius [R] | 1.1890627 |
| Luminosity [L] | 1.2940918 |
| Orbital period [d] | 0.330604 |
|---|---|
| Temperature [K] | 5743.98 |
| Surface gravity (log(g)) | 4.151 |
| Metallicity ([Fe/H]) | -0.015 |
| Simbad link | DF Hya |
|---|---|
| J magnitude | 10.067 |
| H magnitude | 9.708 |
| K magnitude | 9.597 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.45 |
| Johnson_V magnitude | 10.8 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 10.8033 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |