1SWASP J161858.05+261303.5
| Simbad link | 1SWASP J161858.05+261303.5 |
|---|---|
| Source publication | Li, Kai (2020) - The First Light Curve Modeling and Orbital Period Change Investigation of Nine Contact Binaries around the Short-period Cutoff |
| ADS link | 2020AJ....159..189L |
| Name in Source publication | 1SWASP J161858.05+261303.5 |
| Orbital period in days (P [d]) | 0.228781 |
| Mass ratio (q) | 0.6 |
| Mass ratio determination | Photometric |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.228781 |
| Mass ratio (q) | 0.6 |
| Orbital inclination in degrees (i [o]) | 50.8 |
| Fillout (f) | 0.04 |
| Primary temperature in Kelvins (T1 [K]) | 4400 |
| Secondary temperature in Kelvins (T2 [K]) | 4578 |
| Primary polar radius in units of orbital separation (r1p) | 0.4016 |
| Secondary polar radius in units of orbital separation (r2p) | 0.316 |
| Surface potential (Ω) | 3.044 |
| Orbital separation in solar radii (a [R]) | 1.62 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.69 |
| Secondary radius in solar units (R2 [R]) | 0.54 |
| Primary mass in solar units (M1 [M]) | 0.68 |
| Secondary mass in solar units (M2 [M]) | 0.4 |
| Primary temperature in kelvins (T1 [K]) | 4400 |
| Secondary temperature in Kelvins (T2 [K]) | 4578 |
| Primary luminosity in solar units (L1 [L]) | 0.23 |
| Secondary luminosity in solar units (L2 [L]) | 0.14 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 6.66 |
| Orbital period in days (P [d]) | 0.228781 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.023328 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 1303664896668956928 |
|---|---|
| RA | 244:44:25.77444 |
| DEC | 26:13:42.002616 |
| l | 44.21747422 |
| b | 43.97493037 |
| G magnitude | 18.537762 |
| G_bp magnitude | 19.442621 |
| G_rp magnitude | 17.216534 |
| Radial velocity [km/s] | |
| Parallax | 2.21200023 |
| Distance [pc] | 452.079519 |
| Temperature [K] | |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | 1SWASP J161858.05+261303.5 |
|---|---|
| J magnitude | 12.33 |
| H magnitude | 11.796 |
| K magnitude | 11.698 |
| Johnson_U magnitude | 13.55 |
| Johnson_B magnitude | 15.37 |
| Johnson_V magnitude | 14.36 |
| Johnson_R magnitude | 13.95 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.81 |
| Sloan_r magnitude | 13.95 |
| Sloan_i magnitude | 13.55 |
| Sloan_z magnitude |