V1487 Her
| Simbad link | V1487 Her |
|---|---|
| Source publication | Poro, Atila (2025) - BSN-III: The First Multiband Photometric Study on the Eight Total Eclipse Contact Binary Stars |
| ADS link | 2025arXiv250720607P |
| Name in Source publication | V1487 Her |
| Orbital period in days (P [d]) | 0.224495 |
| Mass ratio (q) | 0.62 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | PHOEBE2 |
|---|---|
| Orbital period in days (P [d]) | 0.224495 |
| Mass ratio (q) | 0.62 |
| Orbital inclination in degrees (i [o]) | 83 |
| Fillout (f) | 0.2 |
| Primary temperature in Kelvins (T1 [K]) | 4901 |
| Secondary temperature in Kelvins (T2 [K]) | 4879 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 3.028 |
| Orbital separation in solar radii (a [R]) | 1.53 |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.67 |
| Secondary radius in solar units (R2 [R]) | 0.54 |
| Primary mass in solar units (M1 [M]) | 0.59 |
| Secondary mass in solar units (M2 [M]) | 0.36 |
| Primary temperature in kelvins (T1 [K]) | 4901 |
| Secondary temperature in Kelvins (T2 [K]) | 4879 |
| Primary luminosity in solar units (L1 [L]) | 0.23 |
| Secondary luminosity in solar units (L2 [L]) | 0.15 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.224495 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.02497 |
| Cyclic period variation in years (Pc [y]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 290 | 18 | 0.89 |
| Designation | Gaia DR3 1307061425526398720 |
|---|---|
| RA | 254:23:39.42186 |
| DEC | 27:48:10.472007 |
| l | 48.92482670525931 |
| b | 36.00854919107646 |
| G [mag] | 15.683448 |
| G_bp [mag] | 16.257816 |
| G_rp [mag] | 14.948228 |
| Parallax | 1.3575040252720938 |
| Distance [pc] | 797.4555 |
| Temperature [K] | 4911.3 |
| Surface gravity log(g) [cm/s2] | 4.611 |
| Metallicity [Fe/H] | 0.496 |
| Monochromatic extinction A0 [mag] | 0.0815 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | V1487 Her |
|---|---|
| J magnitude | |
| H magnitude | |
| K magnitude | |
| Johnson_U magnitude | |
| Johnson_B magnitude | |
| Johnson_V magnitude | 15.45 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 16.397 |
| Sloan_r magnitude | 15.547 |
| Sloan_i magnitude | |
| Sloan_z magnitude |