AK Her
| Simbad link | AK Her |
|---|---|
| Source publication | Gazeas, K. (2021) - Physical parameters of close binary systems: VIII |
| ADS link | 2021MNRAS.501.2897G |
| Name in Source publication | AK Her |
| Orbital period in days (P [d]) | 0.421523 |
| Mass ratio (q) | 0.28 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Spectral type |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 154664604 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.421523 |
| Mass ratio (q) | 0.28 |
| Orbital inclination in degrees (i [o]) | 84.8 |
| Fillout (f) | 0.23 |
| Primary temperature in Kelvins (T1 [K]) | 6530 |
| Secondary temperature in Kelvins (T2 [K]) | 6060 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.383 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 11.38 |
| Secondary radius in solar units (R2 [R]) | 0.76 |
| Primary mass in solar units (M1 [M]) | 1.19 |
| Secondary mass in solar units (M2 [M]) | 0.33 |
| Primary temperature in kelvins (T1 [K]) | 6530 |
| Secondary temperature in Kelvins (T2 [K]) | 6060 |
| Primary luminosity in solar units (L1 [L]) | 3.13 |
| Secondary luminosity in solar units (L2 [L]) | 0.69 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 35 | 66.4 | 0.943 |
| Designation | Gaia DR3 4546891252744542976 |
|---|---|
| RA | 258:29:27.778791 |
| DEC | 16:20:59.864833 |
| l | 37.510866714041065 |
| b | 28.732599055495037 |
| G [mag] | 8.470885 |
| G_bp [mag] | 8.722449 |
| G_rp [mag] | 8.05107 |
| Parallax | 9.558610950887093 |
| Distance [pc] | 104.2891 |
| Temperature [K] | 6216.927 |
| Surface gravity log(g) [cm/s2] | 4.0291 |
| Metallicity [Fe/H] | -0.4501 |
| Monochromatic extinction A0 [mag] | 0.0046 |
| Radius [R] | 1.5535175 |
| Luminosity [L] | 3.3029375 |
| Simbad link | AK Her |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | 9.04 |
| Johnson_V magnitude | 8.51 |
| Johnson_R magnitude | |
| Johnson_I magnitude | 7.874 |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |