V1104 Her
| Simbad link | V1104 Her |
|---|---|
| Source publication | Loukaidou, G. A. (2022) - CoBiToM Project - II. Evolution of contact binary systems close to the orbital period cut-off |
| ADS link | 2022MNRAS.514.5528L |
| Name in Source publication | 1SWASP J180947.64+490255.0 |
| Orbital period in days (P [d]) | 0.227877 |
| Mass ratio (q) | 0.97 |
| Mass ratio determination | Photometric |
| Temperature determination | Color index |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 298661555 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.227877 |
| Mass ratio (q) | 0.97 |
| Orbital inclination in degrees (i [o]) | 82.3 |
| Fillout (f) | 0.16 |
| Primary temperature in Kelvins (T1 [K]) | 4050 |
| Secondary temperature in Kelvins (T2 [K]) | 3833 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 3.614 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.76 |
| Secondary radius in solar units (R2 [R]) | 0.7 |
| Primary mass in solar units (M1 [M]) | 0.82 |
| Secondary mass in solar units (M2 [M]) | 0.8 |
| Primary temperature in kelvins (T1 [K]) | 4050 |
| Secondary temperature in Kelvins (T2 [K]) | 3833 |
| Primary luminosity in solar units (L1 [L]) | 0.14 |
| Secondary luminosity in solar units (L2 [L]) | 0.1 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.227877 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 8.35 |
| Designation | Gaia DR3 2122992065148038784 |
|---|---|
| RA | 272:26:53.201035 |
| DEC | 49:02:54.608364 |
| l | 76.73151753257609 |
| b | 26.730979202181796 |
| G [mag] | 13.447868 |
| G_bp [mag] | 14.32903 |
| G_rp [mag] | 12.525254 |
| Parallax | 5.4019685237292325 |
| Distance [pc] | 184.1651 |
| Temperature [K] | 4231.886 |
| Surface gravity log(g) [cm/s2] | 4.4618 |
| Metallicity [Fe/H] | 0.488 |
| Monochromatic extinction A0 [mag] | 0.5494 |
| Radius [R] | 0.85100484 |
| Luminosity [L] | 0.17164417 |
| Temperature [K] | 3796.81 |
|---|---|
| Surface gravity log(g) [cm/s2] | 4.5 |
| Metallicity [Fe/H] |
| Simbad link | V1104 Her |
|---|---|
| J magnitude | 11.362 |
| H magnitude | 10.71 |
| K magnitude | 10.56 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 14 |
| Johnson_V magnitude | 13.51 |
| Johnson_R magnitude | 13.56 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.753 |
| Sloan_r magnitude | 13.505 |
| Sloan_i magnitude | 12.873 |
| Sloan_z magnitude |