GR Vir
| Simbad link | GR Vir |
|---|---|
| Source publication | Gazeas, K. D. (2005) - Physical Parameters of Components in Close Binary Systems: IV |
| ADS link | 2005AcA....55..123G |
| Name in Source publication | GR Vir |
| Orbital period in days (P [d]) | 0.346967 |
| Mass ratio (q) | 0.11 |
| Mass ratio determination | Spectroscopic |
| Temperature determination | Unknown |
| Type | W |
| Has total eclipse? | |
| Has spots? | |
| Has third light? | |
| Has period variation? |
| Solver | WD |
|---|---|
| Orbital period in days (P [d]) | 0.346967 |
| Mass ratio (q) | 0.11 |
| Orbital inclination in degrees (i [o]) | 81.9 |
| Fillout (f) | 0.93 |
| Primary temperature in Kelvins (T1 [K]) | 6150 |
| Secondary temperature in Kelvins (T2 [K]) | 6554 |
| Primary polar radius in units of orbital separation (r1p) | 0.5494 |
| Secondary polar radius in units of orbital separation (r2p) | 0.2169 |
| Surface potential (Ω) | 1.913 |
| Orbital separation in solar radii (a [R]) | 2.4 |
|---|---|
| Primary radius in solar units (R1 [R]) | 1.49 |
| Secondary radius in solar units (R2 [R]) | 0.55 |
| Primary mass in solar units (M1 [M]) | 1.38 |
| Secondary mass in solar units (M2 [M]) | 0.17 |
| Primary temperature in kelvins (T1 [K]) | 6150 |
| Secondary temperature in Kelvins (T2 [K]) | 6554 |
| Primary luminosity in solar units (L1 [L]) | 2.81 |
| Secondary luminosity in solar units (L2 [L]) | 0.49 |
| Distance in parsecs (d [pc]) | |
| Age in gigayears (τ [gyr]) | 3.87 |
| Orbital period in days (P [d]) | 0.346967 |
|---|---|
| Monotonic period variation in seconds per year (dPdt [s/y]) | |
| Cyclic period variation in years (Pc [y]) | 28.56 |
| Designation | Gaia DR2 6330650681838332032 |
|---|---|
| RA | 221:20:02.61528 |
| DEC | -7:15:56.606159 |
| l | 346.2331953 |
| b | 46.34061487 |
| G [mag] | 7.8983684 |
| G_bp [mag] | 8.250117 |
| G_rp [mag] | 7.5004745 |
| Parallax | 15.86609706 |
| Distance [pc] | 8.1E-09 |
| Temperature [K] | 5996.3335 |
| Surface gravity log(g) [cm/s2] | |
| Metallicity [Fe/H] | |
| Monochromatic extinction A0 [mag] | |
| Radius [R] | 1.31924 |
| Luminosity [L] | 2.0271478 |
| Simbad link | GR Vir |
|---|---|
| J magnitude | 7.048 |
| H magnitude | 6.806 |
| K magnitude | 6.762 |
| Johnson_U magnitude | 7.34 |
| Johnson_B magnitude | 8.54 |
| Johnson_V magnitude | 8 |
| Johnson_R magnitude | |
| Johnson_I magnitude | |
| Sloan_u magnitude | |
| Sloan_g magnitude | 7.8984 |
| Sloan_r magnitude | |
| Sloan_i magnitude | 7.34 |
| Sloan_z magnitude |