V1187 Her
Simbad link | V1187 Her |
---|---|
Source publication | Caton, Daniel (2019) - BVR<SUB>C</SUB>I<SUB>C</SUB> Observations, Analysis, and Spectra of The Most Extreme Mass Ratio (Totally Eclipsing) W UMa Binary, V1187 Herculis |
ADS link | 2019PASP..131e4203C |
Name in Source publication | V1187 Her |
Orbital period in days (P [d]) | 0.310765 |
Mass ratio (q) | 0.04 |
Mass ratio determination | Photometric |
Type | W |
Has total eclipse? | |
Has spots? | |
Has third light? | |
Has period variation? |
Solver | WD |
---|---|
Orbital period in days (P [d]) | 0.310765 |
Mass ratio (q) | 0.04 |
Orbital inclination in degrees (i [o]) | 65.9 |
Fillout (f) | 0.8 |
Primary temperature in Kelvins (T1 [K]) | 6250 |
Secondary temperature in Kelvins (T2 [K]) | 6651 |
Primary polar radius in units of orbital separation (r1p) | 0.5866 |
Secondary polar radius in units of orbital separation (r2p) | 0.1596 |
Surface potential (Ω) | 1.743 |
Orbital separation in solar radii (a [R]) | |
---|---|
Primary radius in solar units (R1 [R]) | |
Secondary radius in solar units (R2 [R]) | |
Primary mass in solar units (M1 [M]) | |
Secondary mass in solar units (M2 [M]) | |
Primary temperature in kelvins (T1 [K]) | 6250 |
Secondary temperature in Kelvins (T2 [K]) | 6651 |
Primary luminosity in solar units (L1 [L]) | |
Secondary luminosity in solar units (L2 [L]) | |
Distance in parsecs (d [pc]) | 175 |
Age in gigayears (τ [gyr]) |
Orbital period in days (P [d]) | 0.310765 |
---|---|
Monotonic period variation in seconds per year (dPdt [s/y]) | -0.01296 |
Cyclic period variation in years (Pc [y]) |
Simbad link | V1187 Her |
---|---|
J magnitude | 10.486 |
H magnitude | 10.201 |
K magnitude | 10.145 |
Johnson_U magnitude | |
Johnson_B magnitude | 11.99 |
Johnson_V magnitude | 11.51 |
Johnson_R magnitude | 11.51 |
Johnson_I magnitude | |
Sloan_u magnitude | |
Sloan_g magnitude | 11.5241 |
Sloan_r magnitude | 11.51 |
Sloan_i magnitude | |
Sloan_z magnitude |