V899 Her
| Simbad link | V899 Her |
|---|---|
| Source publication | Özdemir, S. (2002) - A photometric study of the recently discovered eclipsing binary V899 Herculis |
| ADS link | 2002A&A...387..240O |
| Name in Source publication | V899 Her |
| Orbital period in days (P [d]) | 0.421172 |
| Mass ratio (q) | 0.57 |
| Mass ratio determination | Spectroscopic |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.421172 |
| Mass ratio (q) | 0.57 |
| Orbital inclination in degrees (i [o]) | 68.7 |
| Fillout (f) | 0.24 |
| Primary temperature in Kelvins (T1 [K]) | 5700 |
| Secondary temperature in Kelvins (T2 [K]) | 5677 |
| Primary polar radius in units of orbital separation (r1p) | 0.4167 |
| Secondary polar radius in units of orbital separation (r2p) | 0.3228 |
| Surface potential (Ω) | 2.922 |
| Orbital separation in solar radii (a [R]) | 3.51 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.57 |
| Secondary radius in solar units (R2 [R]) | 1.22 |
| Primary mass in solar units (M1 [M]) | 2.1 |
| Secondary mass in solar units (M2 [M]) | 1.19 |
| Primary temperature in kelvins (T1 [K]) | 5700 |
| Secondary temperature in Kelvins (T2 [K]) | 5677 |
| Primary luminosity in solar units (L1 [L]) | 2.32 |
| Secondary luminosity in solar units (L2 [L]) | 1.4 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.421172 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 3.7 |
| Period study | Qian, S. -B. (2006) - Is V899 Herculis an unsolved quadruple system containing double close binary stars? |
| ADS link | 2006NewA...12...33Q |
| Designation | Gaia DR2 1325067886936436224 |
|---|---|
| RA | 248:45:30.08952 |
| DEC | 33:12:47.161836 |
| l | 54.48314979 |
| b | 41.85366313 |
| G magnitude | 7.763885 |
| G_bp magnitude | 8.019155 |
| G_rp magnitude | 7.399128 |
| Radial velocity [km/s] | |
| Parallax | 5.81177715 |
| Distance [pc] | 172.064409 |
| Temperature [K] | 6248.17 |
| Radius [R] | 3.5165777 |
| Luminosity [L] | 16.980343 |
| Simbad link | V899 Her |
|---|---|
| J magnitude | 7.016 |
| H magnitude | 6.858 |
| K magnitude | 6.793 |
| Johnson_U magnitude | |
| Johnson_B magnitude | 8.33 |
| Johnson_V magnitude | 7.88 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 7.7639 |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |