V1458 Her
| Simbad link | V1458 Her |
|---|---|
| Source publication | Acerbi, F. (2024) - Investigation on Four Contact Binary Systems and a Semi-Detached One at the Beginning of the Contact Phase |
| ADS link | 2024RMxAA..60...69A |
| Name in Source publication | J161858 |
| Orbital period in days (P [d]) | 0.228777 |
| Mass ratio (q) | 0.55 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? | |
| Search TESS catalog of Eclipsing Binaries | TIC 236393166 |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.228777 |
| Mass ratio (q) | 0.55 |
| Orbital inclination in degrees (i [o]) | 46 |
| Fillout (f) | 0.64 |
| Primary temperature in Kelvins (T1 [K]) | 4580 |
| Secondary temperature in Kelvins (T2 [K]) | 4065 |
| Primary polar radius in units of orbital separation (r1p) | 0.4421 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3436 |
| Surface potential (Ω) | 2.7618 |
| Orbital separation in solar radii (a [R]) | 1.65 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.8 |
| Secondary radius in solar units (R2 [R]) | 0.63 |
| Primary mass in solar units (M1 [M]) | 0.75 |
| Secondary mass in solar units (M2 [M]) | 0.41 |
| Primary temperature in kelvins (T1 [K]) | 4580 |
| Secondary temperature in Kelvins (T2 [K]) | 4065 |
| Primary luminosity in solar units (L1 [L]) | 0.25 |
| 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]) | 0.228777 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.027734 |
| Cyclic period variation in years (Pc [y]) | |
| Period study | 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 |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 79.2 | 36.7 | 0.75 |
| Designation | Gaia DR3 1303664896668956800 |
|---|---|
| RA | 244:44:27.61955 |
| DEC | 26:13:38.492612 |
| l | 44.216303630570835 |
| b | 43.97425778485491 |
| G [mag] | 14.042213 |
| G_bp [mag] | 14.632011 |
| G_rp [mag] | 13.30663 |
| Parallax | 2.7382529400005944 |
| Distance [pc] | 346.4373 |
| Temperature [K] | 5126.2866 |
| Surface gravity log(g) [cm/s2] | 4.527 |
| Metallicity [Fe/H] | -0.0307 |
| Monochromatic extinction A0 [mag] | 0.7616 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | V1458 Her |
|---|---|
| J magnitude | 12.33 |
| H magnitude | 11.796 |
| K magnitude | 11.698 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 15.37 |
| Johnson_V magnitude | 14.36 |
| Johnson_R magnitude | 14.18 |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 14.81 |
| Sloan_r magnitude | 13.95 |
| Sloan_i magnitude | 13.55 |
| Sloan_z magnitude |