CRTS J063808.2+441213
| Simbad link | CRTS J063808.2+441213 |
|---|---|
| Source publication | Xia, Qiqi (2025) - Minute-cadence Observations of the LAMOST Fields with the TMTS. VI. Physical Parameters of Contact Binaries |
| ADS link | 2025AJ....169..139X |
| Name in Source publication | J0638 |
| Orbital period in days (P [d]) | 0.354385 |
| Mass ratio (q) | 1.37 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Unknown |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.354385 |
| Mass ratio (q) | 1.37 |
| Orbital inclination in degrees (i [o]) | 71.6 |
| Fillout (f) | 0.14 |
| Primary temperature in Kelvins (T1 [K]) | 5518 |
| Secondary temperature in Kelvins (T2 [K]) | 5263 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 4.26 |
| Orbital separation in solar radii (a [R]) | 2.35 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.86 |
| Secondary radius in solar units (R2 [R]) | 0.98 |
| Primary mass in solar units (M1 [M]) | 0.59 |
| Secondary mass in solar units (M2 [M]) | 0.81 |
| Primary temperature in kelvins (T1 [K]) | 5518 |
| Secondary temperature in Kelvins (T2 [K]) | 5263 |
| Primary luminosity in solar units (L1 [L]) | 0.61 |
| Secondary luminosity in solar units (L2 [L]) | 0.67 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.354385 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.032858 |
| Cyclic period variation in years (Pc [y]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 48.5 | 14.8 | 0.7 |
| Designation | Gaia DR3 964274759873249152 |
|---|---|
| RA | 99:32:03.269292 |
| DEC | 44:12:13.606349 |
| l | 171.14976151075925 |
| b | 16.31458758848712 |
| G [mag] | 13.273979 |
| G_bp [mag] | 13.708406 |
| G_rp [mag] | 12.675872 |
| Parallax | 1.892216602340274 |
| Distance [pc] | 513.9014 |
| Temperature [K] | 5692.8013 |
| Surface gravity log(g) [cm/s2] | 4.228 |
| Metallicity [Fe/H] | -0.076 |
| Monochromatic extinction A0 [mag] | 0.4809 |
| Radius [R] | |
| Luminosity [L] |
| Temperature [K] | 5518.43 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.378 |
| Metallicity [Fe/H] | -0.164 |
| Simbad link | CRTS J063808.2+441213 |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 13.16 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 13.821 |
| Sloan_r magnitude | 13.199 |
| Sloan_i magnitude | |
| Sloan_z magnitude |