Cl* NGC 6121 SAW V72
| Simbad link | Cl* NGC 6121 SAW V72 |
|---|---|
| Source publication | Li, Kai (2017) - Comprehensive photometric study of an extremely low mass ratio deep contact binary in the globular cluster M 4 |
| ADS link | 2017PASJ...69...79L |
| Name in Source publication | V53 |
| Orbital period in days (P [d]) | 0.308449 |
| Mass ratio (q) | 0.08 |
| Mass ratio determination | Photometric |
| Type | A |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.308449 |
| Mass ratio (q) | 0.08 |
| Orbital inclination in degrees (i [o]) | 74.4 |
| Fillout (f) | 0.67 |
| Primary temperature in Kelvins (T1 [K]) | 7415 |
| Secondary temperature in Kelvins (T2 [K]) | 6611 |
| Primary polar radius in units of orbital separation (r1p) | 0.5598 |
| Secondary polar radius in units of orbital separation (r2p) | 0.1899 |
| Surface potential (Ω) | 1.8543 |
| Orbital separation in solar radii (a [R]) | 2.24 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.38 |
| Secondary radius in solar units (R2 [R]) | 0.48 |
| Primary mass in solar units (M1 [M]) | 1.47 |
| Secondary mass in solar units (M2 [M]) | 0.12 |
| Primary temperature in kelvins (T1 [K]) | 7415 |
| Secondary temperature in Kelvins (T2 [K]) | 6611 |
| Primary luminosity in solar units (L1 [L]) | 7.31 |
| Secondary luminosity in solar units (L2 [L]) | 0.47 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 5 |
| Orbital period in days (P [d]) | 0.308449 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | -0.005089 |
| Cyclic period variation in years (Pc [y]) |
| Designation | Gaia DR2 6045465093907377664 |
|---|---|
| RA | 245:54:33.72876 |
| DEC | -27:27:50.99094 |
| l | 350.9730686 |
| b | 15.95704296 |
| G magnitude | 17.398151 |
| G_bp magnitude | |
| G_rp magnitude | |
| Radial velocity [km/s] | |
| Parallax | |
| Distance [pc] | |
| Temperature [K] | |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | Cl* NGC 6121 SAW V72 |
|---|---|
| J magnitude | 14.29 |
| H magnitude | 14.13 |
| K magnitude | 13.9 |
| Johnson_U magnitude | 15.01 |
| Johnson_B magnitude | 16.46 |
| Johnson_V magnitude | 15.83 |
| Johnson_R magnitude | 15.4 |
| Johnson_I magnitude | |
| Sloan_u magnitude | 16.76 |
| Sloan_g magnitude | |
| Sloan_r magnitude | 15.4 |
| Sloan_i magnitude | 15.01 |
| Sloan_z magnitude |