EI Cen
| Simbad link | EI Cen |
|---|---|
| Source publication | Yang, Yuan-Gui (2011) - A photometric study of the K-type contact binary EI CVn |
| ADS link | 2011RAA....11..181Y |
| Name in Source publication | EI Cen |
| Orbital period in days (P [d]) | 0.260767 |
| Mass ratio (q) | 0.46 |
| Mass ratio determination | Photometric |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.260767 |
| Mass ratio (q) | 0.46 |
| Orbital inclination in degrees (i [o]) | 83.9 |
| Fillout (f) | 0.21 |
| Primary temperature in Kelvins (T1 [K]) | 4410 |
| Secondary temperature in Kelvins (T2 [K]) | 4341 |
| Primary polar radius in units of orbital separation (r1p) | 0.4312 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3041 |
| Surface potential (Ω) | 2.7422 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | |
| Secondary radius in solar units (R2 [R]) | |
| Primary mass in solar units (M1 [M]) | |
| Secondary mass in solar units (M2 [M]) | |
| Primary temperature in kelvins (T1 [K]) | 4410 |
| Secondary temperature in Kelvins (T2 [K]) | 4341 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.260767 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.02687 |
| Cyclic period variation in years (Pc [y]) | 4.96 |
| Designation | Gaia DR2 6064012824275372032 |
|---|---|
| RA | 202:25:10.04052 |
| DEC | -56:55:12.104328 |
| l | 308.4329875 |
| b | 7.382818213 |
| G magnitude | 16.900064 |
| G_bp magnitude | |
| G_rp magnitude | |
| Radial velocity [km/s] | |
| Parallax | 0.205083766 |
| Distance [pc] | 4876.056353 |
| Temperature [K] | |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | EI Cen |
|---|---|
| J magnitude | 12.859 |
| H magnitude | 12.448 |
| K magnitude | 12.315 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |