GK Aqr
| Simbad link | GK Aqr |
|---|---|
| Source publication | Zhang, Liyun (2015) - The first multi-color photometric study of the short-period contact eclipsing binary GK Aqr |
| ADS link | 2015NewA...38...50Z |
| Name in Source publication | GK Aqr |
| Orbital period in days (P [d]) | 0.327413 |
| Mass ratio (q) | 0.44 |
| 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]) | 0.327413 |
| Mass ratio (q) | 0.44 |
| Orbital inclination in degrees (i [o]) | 87.6 |
| Fillout (f) | 0.05 |
| Primary temperature in Kelvins (T1 [K]) | 4995 |
| Secondary temperature in Kelvins (T2 [K]) | 5326 |
| Primary polar radius in units of orbital separation (r1p) | 0.4281 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2913 |
| Surface potential (Ω) | 2.7359 |
| 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]) | 4995 |
| Secondary temperature in Kelvins (T2 [K]) | 5326 |
| 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]) | 0.327413 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.024192 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 2677855484207663104 |
|---|---|
| RA | 334:59:14.46972 |
| DEC | -1:20:13.312288 |
| l | 62.59558159 |
| b | -45.05379274 |
| G magnitude | 12.061736 |
| G_bp magnitude | 12.528507 |
| G_rp magnitude | 11.373823 |
| Radial velocity [km/s] | |
| Parallax | 5.19511699 |
| Distance [pc] | 192.488447 |
| Temperature [K] | 4897.705 |
| Radius [R] | 0.9491087 |
| Luminosity [L] | 0.46697882 |
| Orbital period [d] | 0.3274145 |
|---|---|
| Temperature [K] | 5333.81 |
| Surface gravity (log(g)) | 4.321 |
| Metallicity ([Fe/H]) | 0.421 |
| Simbad link | GK Aqr |
|---|---|
| J magnitude | 10.631 |
| H magnitude | 10.213 |
| K magnitude | 10.055 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.4 |
| Johnson_V magnitude | 12.25 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 12.0617 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |