ATO J028.6197+20.7129
| Simbad link | ATO J028.6197+20.7129 |
|---|---|
| Source publication | Popov, Velimir A. (2022) - Absolute parameters of four W UMa stars with extreme low mass ratios |
| ADS link | 2022NewA...9701862P |
| Name in Source publication | ASAS0154+20 |
| Orbital period in days (P [d]) | 0.472488 |
| Mass ratio (q) | 0.14 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | PHOEBE |
|---|---|
| Orbital period in days (P [d]) | 0.472488 |
| Mass ratio (q) | 0.14 |
| Orbital inclination in degrees (i [o]) | 79.9 |
| Fillout (f) | 0.16 |
| Primary temperature in Kelvins (T1 [K]) | 6680 |
| Secondary temperature in Kelvins (T2 [K]) | 6011 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 2.053 |
| Orbital separation in solar radii (a [R]) | 3.31 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.86 |
| Secondary radius in solar units (R2 [R]) | 0.77 |
| Primary mass in solar units (M1 [M]) | 1.92 |
| Secondary mass in solar units (M2 [M]) | 0.26 |
| Primary temperature in kelvins (T1 [K]) | 6680 |
| Secondary temperature in Kelvins (T2 [K]) | 6011 |
| Primary luminosity in solar units (L1 [L]) | 6.2 |
| 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 | 240 | 15 | 0.9 | |
| Secondary | 160 | 25 | 1.2 |
| Designation | Gaia DR3 97052276476308992 |
|---|---|
| RA | 28:37:11.227438 |
| DEC | 20:42:46.545787 |
| l | 142.23737949217568 |
| b | -39.78381921478107 |
| G [mag] | 12.029287 |
| G_bp [mag] | 12.242247 |
| G_rp [mag] | 11.649506 |
| Parallax | 1.5841649063527088 |
| Distance [pc] | 612.6018 |
| Temperature [K] | 6633.2637 |
| Surface gravity log(g) [cm/s2] | 4.1343 |
| Metallicity [Fe/H] | -0.2225 |
| Monochromatic extinction A0 [mag] | 0.0045 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | ATO J028.6197+20.7129 |
|---|---|
| J magnitude | 11.116 |
| H magnitude | 10.95 |
| K magnitude | 10.908 |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | |
| Johnson_R magnitude | 12.231 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |