KIC 8842170
| Simbad link | KIC 8842170 |
|---|---|
| Source publication | Debski, B. (2022) - The light-curve intrinsic variability in 47 Kepler contact binary stars |
| ADS link | 2022MNRAS.516.5003D |
| Name in Source publication | KIC 8842170 |
| Orbital period in days (P [d]) | 0.349392 |
| Mass ratio (q) | 0.14 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search Kepler catalog of Eclipsing Binaries | KIC 8842170 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.349392 |
| Mass ratio (q) | 0.14 |
| Orbital inclination in degrees (i [o]) | 79.2 |
| Fillout (f) | 0.96 |
| Primary temperature in Kelvins (T1 [K]) | 5589 |
| Secondary temperature in Kelvins (T2 [K]) | 5836 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 1.981 |
| 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]) | 2.82 |
| Secondary mass in solar units (M2 [M]) | 0.38 |
| Primary temperature in kelvins (T1 [K]) | 5589 |
| Secondary temperature in Kelvins (T2 [K]) | 5836 |
| Primary luminosity in solar units (L1 [L]) | |
| Secondary luminosity in solar units (L2 [L]) | |
| 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 | 295 | 22 | 0.75 |
| Designation | Gaia DR3 2079174224687507072 |
|---|---|
| RA | 299:18:37.814328 |
| DEC | 45:03:48.669715 |
| l | 79.7262854817328 |
| b | 8.32363842763008 |
| G [mag] | 14.771011 |
| G_bp [mag] | 15.199502 |
| G_rp [mag] | 14.175355 |
| Parallax | 0.7337637279424503 |
| Distance [pc] | 1227.006 |
| Temperature [K] | 5700.9077 |
| Surface gravity log(g) [cm/s2] | 4.1835 |
| Metallicity [Fe/H] | -0.5812 |
| Monochromatic extinction A0 [mag] | 0.5179 |
| Radius [R] | |
| Luminosity [L] |
| Temperature [K] | 6143.82 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.123 |
| Metallicity [Fe/H] | -0.055 |
| Simbad link | KIC 8842170 |
|---|---|
| J magnitude | 13.34 |
| H magnitude | 13.048 |
| K magnitude | 12.979 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | 14.882 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 15.268 |
| Sloan_r magnitude | 14.709 |
| Sloan_i magnitude | |
| Sloan_z magnitude |