TIC 8989778
| Simbad link | TIC 8989778 |
|---|---|
| Source publication | Guo, Yani (2025) - The Investigation of 84 TESS Totally Eclipsing Contact Binaries |
| ADS link | 2025AJ....170..115G |
| Name in Source publication | TIC 8989778 |
| Orbital period in days (P [d]) | 0.612798 |
| Mass ratio (q) | 0.19 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 8989778 |
| Solver | PHOEBE2 |
|---|---|
| Orbital period in days (P [d]) | 0.612798 |
| Mass ratio (q) | 0.19 |
| Orbital inclination in degrees (i [o]) | 75.9 |
| Fillout (f) | 0.32 |
| Primary temperature in Kelvins (T1 [K]) | 7688 |
| Secondary temperature in Kelvins (T2 [K]) | 6891 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) |
| Orbital separation in solar radii (a [R]) | 3.97 |
|---|---|
| Primary radius in solar units (R1 [R]) | 2.14 |
| Secondary radius in solar units (R2 [R]) | 1.05 |
| Primary mass in solar units (M1 [M]) | 1.87 |
| Secondary mass in solar units (M2 [M]) | 0.36 |
| Primary temperature in kelvins (T1 [K]) | 7688 |
| Secondary temperature in Kelvins (T2 [K]) | 6891 |
| Primary luminosity in solar units (L1 [L]) | 3.72 |
| Secondary luminosity in solar units (L2 [L]) | 0.65 |
| 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 | 91 | 90 | 27 | 0.955 |
| Designation | Gaia DR3 2438737101308168576 |
|---|---|
| RA | 354:49:02.572227 |
| DEC | -10:50:54.723653 |
| l | 76.06768148955871 |
| b | -65.22730237569779 |
| G [mag] | 11.113104 |
| G_bp [mag] | 11.214923 |
| G_rp [mag] | 10.880015 |
| Parallax | 1.4707008461242776 |
| Distance [pc] | 650.8167 |
| Temperature [K] | 7496.736 |
| Surface gravity log(g) [cm/s2] | 4.0145 |
| Metallicity [Fe/H] | -0.5111 |
| Monochromatic extinction A0 [mag] | 0.0235 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | TIC 8989778 |
|---|---|
| J magnitude | 10.695 |
| H magnitude | 10.632 |
| K magnitude | 10.578 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 11.46 |
| Johnson_V magnitude | 11.09 |
| Johnson_R magnitude | 10.663 |
| Johnson_I magnitude | 10.495 |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |