Cl* NGC 6121 SAW V74
| Simbad link | Cl* NGC 6121 SAW V74 |
|---|---|
| Source publication | Devarapalli, Shanti Priya (2024) - Multi-wavelength photometric study of five contact binaries in the field of globular cluster M4 |
| ADS link | 2024NewA..10702150D |
| Name in Source publication | V55 |
| Orbital period in days (P [d]) | 0.3107 |
| Mass ratio (q) | 1.25 |
| Mass ratio determination | Photometric |
| Temperature determination | Unknown |
| Type | Unspecified |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.3107 |
| Mass ratio (q) | 1.25 |
| Orbital inclination in degrees (i [o]) | 64.5 |
| Fillout (f) | 0.19 |
| Primary temperature in Kelvins (T1 [K]) | 6429 |
| Secondary temperature in Kelvins (T2 [K]) | 5785 |
| Primary polar radius in units of orbital separation (r1p) | |
| Secondary polar radius in units of orbital separation (r2p) | |
| Surface potential (Ω) | 4.117 |
| Orbital separation in solar radii (a [R]) | |
|---|---|
| Primary radius in solar units (R1 [R]) | 0.86 |
| Secondary radius in solar units (R2 [R]) | 0.94 |
| Primary mass in solar units (M1 [M]) | 0.81 |
| Secondary mass in solar units (M2 [M]) | 1.01 |
| Primary temperature in kelvins (T1 [K]) | 6429 |
| Secondary temperature in Kelvins (T2 [K]) | 5785 |
| Primary luminosity in solar units (L1 [L]) | 0.61 |
| Secondary luminosity in solar units (L2 [L]) | 0.73 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) |
| Orbital period in days (P [d]) | 0.3107 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | 0.000386 |
| Cyclic period variation in years (Pc [y]) |
| Host | Longitude λ [o] | Latitude β [o] | Angular radius σ [o] | Temperature contrast Tspot/Tstar |
|---|---|---|---|---|
| Primary | 72 | 20 | 0.98 |
| Designation | Gaia DR3 6045465506234526592 |
|---|---|
| RA | 245:56:26.278474 |
| DEC | -27:28:43.0655 |
| l | 351.0037712785719 |
| b | 15.946078372756471 |
| G [mag] | 16.526894 |
| G_bp [mag] | 16.986664 |
| G_rp [mag] | 15.8007145 |
| Parallax | 0.6182870591051363 |
| Distance [pc] | 939.0458 |
| Temperature [K] | 5542.8564 |
| Surface gravity log(g) [cm/s2] | 4.6709 |
| Metallicity [Fe/H] | -1.7403 |
| Monochromatic extinction A0 [mag] | 0.801 |
| Radius [R] | |
| Luminosity [L] |
| Simbad link | Cl* NGC 6121 SAW V74 |
|---|---|
| J magnitude | 14.8 |
| H magnitude | 14.48 |
| K magnitude | 14.26 |
| Johnson_U magnitude | 17.64 |
| Johnson_B magnitude | 17.7 |
| Johnson_V magnitude | 16.87 |
| Johnson_R magnitude | 16.31 |
| Johnson_I magnitude | 15.72 |
| Sloan_u magnitude | |
| Sloan_g magnitude | |
| Sloan_r magnitude | |
| Sloan_i magnitude | |
| Sloan_z magnitude |