EF CVn
| Simbad link | EF CVn |
|---|---|
| Source publication | Xia, Qi-Qi (2018) - The first photometric investigation and period study of two W UMa-type binary systems: EF CVn and EH CVn |
| ADS link | 2018PASJ...70..104X |
| Name in Source publication | EF CVn |
| Orbital period in days (P [d]) | 0.27205 |
| Mass ratio (q) | 0.29 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.27205 |
| Mass ratio (q) | 0.29 |
| Orbital inclination in degrees (i [o]) | 67.7 |
| Fillout (f) | 0.32 |
| Primary temperature in Kelvins (T1 [K]) | 5573 |
| Secondary temperature in Kelvins (T2 [K]) | 5998 |
| Primary polar radius in units of orbital separation (r1p) | 0.4718 |
| Secondary polar radius in units of orbital separation (r2p) | 0.271 |
| Surface potential (Ω) | 2.3784 |
| Orbital separation in solar radii (a [R]) | 2.56 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.29 |
| Secondary radius in solar units (R2 [R]) | 0.75 |
| Primary mass in solar units (M1 [M]) | 0.92 |
| Secondary mass in solar units (M2 [M]) | 0.26 |
| Primary temperature in kelvins (T1 [K]) | 5573 |
| Secondary temperature in Kelvins (T2 [K]) | 5998 |
| Primary luminosity in solar units (L1 [L]) | 1.44 |
| Secondary luminosity in solar units (L2 [L]) | 0.66 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.53 |
| Orbital period in days (P [d]) | 0.27205 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.039053 |
| Cyclic period variation in years (Pc [y]) | 15.65 |
| Designation | Gaia DR2 1448960547915658752 |
|---|---|
| RA | 204:09:35.38188 |
| DEC | 28:11:39.76674 |
| l | 41.62229484 |
| b | 79.93832686 |
| G magnitude | 13.002129 |
| G_bp magnitude | 13.325438 |
| G_rp magnitude | 12.499354 |
| Radial velocity [km/s] | |
| Parallax | 2.24460598 |
| Distance [pc] | 445.51249 |
| Temperature [K] | 5693 |
| Radius [R] | 0.99437916 |
| Luminosity [L] | 0.9357578 |
| Orbital period [d] | 0.2720494 |
|---|---|
| Temperature [K] | 5425.6 |
| Surface gravity (log(g)) | 3.825 |
| Metallicity ([Fe/H]) | -1.29 |
| Simbad link | EF CVn |
|---|---|
| J magnitude | 11.965 |
| H magnitude | 11.59 |
| K magnitude | 11.541 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 13 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.0021 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |