EP And
| Simbad link | EP And |
|---|---|
| Source publication | Liao, W. -P. (2013) - The Multi-color Light Curves of the W UMa type Contact Binary EP Andromedae |
| ADS link | 2013AJ....146...79L |
| Name in Source publication | EP And |
| Orbital period in days (P [d]) | 0.404109 |
| Mass ratio (q) | 0.37 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.404109 |
| Mass ratio (q) | 0.37 |
| Orbital inclination in degrees (i [o]) | 81.8 |
| Fillout (f) | 0.25 |
| Primary temperature in Kelvins (T1 [K]) | 6171 |
| Secondary temperature in Kelvins (T2 [K]) | 6250 |
| Primary polar radius in units of orbital separation (r1p) | 0.4495 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2888 |
| Surface potential (Ω) | 2.5645 |
| Orbital separation in solar radii (a [R]) | 2.64 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.27 |
| Secondary radius in solar units (R2 [R]) | 0.82 |
| Primary mass in solar units (M1 [M]) | 1.1 |
| Secondary mass in solar units (M2 [M]) | 0.41 |
| Primary temperature in kelvins (T1 [K]) | 6171 |
| Secondary temperature in Kelvins (T2 [K]) | 6250 |
| Primary luminosity in solar units (L1 [L]) | 2.07 |
| Secondary luminosity in solar units (L2 [L]) | 0.91 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.4 |
| Orbital period in days (P [d]) | 0.404109 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.00451 |
| Cyclic period variation in years (Pc [y]) | 40.89 |
| Designation | Gaia DR2 350288706506804864 |
|---|---|
| RA | 25:37:19.736004 |
| DEC | 44:45:42.273504 |
| l | 132.3812474 |
| b | -17.17131231 |
| G [mag] | 11.460849 |
| G_bp [mag] | 11.728378 |
| G_rp [mag] | 10.91797 |
| Parallax | 1.730253946 |
| Distance [pc] | 2.27E-09 |
| Temperature [K] | 5860.305 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 2.4628727 |
| Luminosity [L] | 6.4455442 |
| Simbad link | EP And |
|---|---|
| J magnitude | 10.545 |
| H magnitude | 10.284 |
| K magnitude | 10.191 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.81 |
| Johnson_V magnitude | 11.4 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 11.4608 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |