V844 Aur
| Simbad link | V844 Aur |
|---|---|
| Source publication | Wang, Yi-Fan (2025) - Photometric and spectroscopic studies of four low mass-ratio contact binaries with period longer than 0.7 d |
| ADS link | 2025MNRAS.544.1958W |
| Name in Source publication | V844 Aur |
| Orbital period in days (P [d]) | 0.822216 |
| Mass ratio (q) | 0.19 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 311223025 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.822216 |
| Mass ratio (q) | 0.19 |
| Orbital inclination in degrees (i [o]) | 78.4 |
| Fillout (f) | 0.45 |
| Primary temperature in Kelvins (T1 [K]) | 6537 |
| Secondary temperature in Kelvins (T2 [K]) | 6604 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.159 |
| Orbital separation in solar radii (a [R]) | 5.13 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.76 |
| Secondary radius in solar units (R2 [R]) | 1.37 |
| Primary mass in solar units (M1 [M]) | 2.23 |
| Secondary mass in solar units (M2 [M]) | 0.44 |
| Primary temperature in kelvins (T1 [K]) | 6537 |
| Secondary temperature in Kelvins (T2 [K]) | 6604 |
| Primary luminosity in solar units (L1 [L]) | 13.32 |
| Secondary luminosity in solar units (L2 [L]) | 2.37 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Designation | Gaia DR3 263713672034656000 |
|---|---|
| RA | 85:46:24.417656 |
| DEC | 53:02:35.390328 |
| l | 158.90618098663617 |
| b | 11.956162668079452 |
| G [mag] | 11.925963 |
| G_bp [mag] | 12.2390995 |
| G_rp [mag] | 11.429597 |
| Parallax | 1.0976176255704022 |
| Distance [pc] | 863.4655 |
| Temperature [K] | 6683.983 |
| Surface gravity log(g) [cm/s2] | 3.7775 |
| Metallicity [Fe/H] | -0.2524 |
| Monochromatic extinction A0 [mag] | 0.5355 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | V844 Aur |
|---|---|
| J magnitude | 11.091 |
| H magnitude | 10.873 |
| K magnitude | 10.781 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 12.29 |
| Johnson_V magnitude | 11.82 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |