EK Com
| Simbad link | EK Com |
|---|---|
| Source publication | Tavakkoli, F. (2017) - Light curve analysis of three W Ursae Majoris-type binaries: V0449 Peg, EP And, and EK Com |
| ADS link | 2017NewA...56...14T |
| Name in Source publication | EK Com |
| Orbital period in days (P [d]) | 0.266685 |
| Mass ratio (q) | 0.29 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | Binary Maker |
|---|---|
| Orbital period in days (P [d]) | 0.266685 |
| Mass ratio (q) | 0.29 |
| Orbital inclination in degrees (i [o]) | 88 |
| Fillout (f) | 0.16 |
| Primary temperature in Kelvins (T1 [K]) | 5150 |
| Secondary temperature in Kelvins (T2 [K]) | 5290 |
| Primary polar radius in units of orbital separation (r1p) | 0.4658 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2641 |
| Surface potential (Ω) | 2.4057 |
| Orbital separation in solar radii (a [R]) | 1.91 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.98 |
| Secondary radius in solar units (R2 [R]) | 0.57 |
| Primary mass in solar units (M1 [M]) | 1.03 |
| Secondary mass in solar units (M2 [M]) | 0.28 |
| Primary temperature in kelvins (T1 [K]) | 5150 |
| Secondary temperature in Kelvins (T2 [K]) | 5290 |
| Primary luminosity in solar units (L1 [L]) | 0.89 |
| Secondary luminosity in solar units (L2 [L]) | 0.16 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 11.15 |
| Orbital period in days (P [d]) | 0.266685 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.002825 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 3961709277286878592 |
|---|---|
| RA | 192:50:20.3928 |
| DEC | 27:13:46.434324 |
| l | 133.1223275 |
| b | 89.89705956 |
| G magnitude | 12.191066 |
| G_bp magnitude | 12.671812 |
| G_rp magnitude | 11.54401 |
| Radial velocity [km/s] | |
| Parallax | 5.104599993 |
| Distance [pc] | 195.901736 |
| Temperature [K] | 4958.54 |
| Radius [R] | 0.8815019 |
| Luminosity [L] | 0.42321056 |
| Orbital period [d] | 0.2666852 |
|---|---|
| Temperature [K] | 4975.50333333333 |
| Surface gravity (log(g)) | 4.238 |
| Metallicity ([Fe/H]) | -0.344666666666667 |
| Simbad link | EK Com |
|---|---|
| J magnitude | 10.892 |
| H magnitude | 10.448 |
| K magnitude | 10.332 |
| Johnson_U magnitude | 11.593 |
| Johnson_B magnitude | 13 |
| Johnson_V magnitude | 12.166 |
| Johnson_R magnitude | 11.898 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.571 |
| Sloan_r magnitude | 11.898 |
| Sloan_i magnitude | 11.593 |
| Sloan_z magnitude |