ASASSN-V J075442.44+555623.2
| Simbad link | ASASSN-V J075442.44+555623.2 |
|---|---|
| Source publication | Liu, Fei (2025) - Extremely low mass ratio contact binaries ─ II. The first photometric and spectroscopic investigations of six systems with orbital periods longer than 0.5 d |
| ADS link | 2025MNRAS.540.1290L |
| Name in Source publication | J075442 |
| Orbital period in days (P [d]) | 0.507282 |
| Mass ratio (q) | 0.08 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.507282 |
| Mass ratio (q) | 0.08 |
| Orbital inclination in degrees (i [o]) | 78.4 |
| Fillout (f) | 0.64 |
| Primary temperature in Kelvins (T1 [K]) | 6927 |
| Secondary temperature in Kelvins (T2 [K]) | 6726 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 1.871 |
| Orbital separation in solar radii (a [R]) | 3.35 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.05 |
| Secondary radius in solar units (R2 [R]) | 0.72 |
| Primary mass in solar units (M1 [M]) | 1.81 |
| Secondary mass in solar units (M2 [M]) | 0.15 |
| Primary temperature in kelvins (T1 [K]) | 6927 |
| Secondary temperature in Kelvins (T2 [K]) | 6726 |
| Primary luminosity in solar units (L1 [L]) | 8.66 |
| Secondary luminosity in solar units (L2 [L]) | 0.96 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.28 |
| Designation | Gaia DR3 1081202392648211072 |
|---|---|
| RA | 118:40:37.684051 |
| DEC | 55:56:23.291595 |
| l | 161.83662624794462 |
| b | 30.90562107558273 |
| G [mag] | 14.166781 |
| G_bp [mag] | 14.383115 |
| G_rp [mag] | 13.809297 |
| Parallax | 0.4642703028051711 |
| Distance [pc] | 1809.6212 |
| Temperature [K] | 7059.376 |
| Surface gravity log(g) [cm/s2] | 4.0753 |
| Metallicity [Fe/H] | -0.4908 |
| Monochromatic extinction A0 [mag] | 0.288 |
| Radius [R] | |
| Luminosity [L] |
| Temperature [K] | 6905.7 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.149 |
| Metallicity [Fe/H] | -0.412 |
| Simbad link | ASASSN-V J075442.44+555623.2 |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 14.12 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.388 |
| Sloan_r magnitude | 14.15 |
| Sloan_i magnitude | |
| Sloan_z magnitude |