All names: EC 21080-6833, GALEX J211233.8-682105, TIC 372421319, Gaia DR2 6375944410510667648, Gaia DR3 6375944410510667648, EC21080-6833, Gaia EDR3 6375944410510667648, UCAC4 109-122731, 2MASS J21123391-6821063
Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|---|
Right ascension | 21 12 33.96 (0.03) | 21 12 33.86 | 21 12 33.91 (0.03) | ||
Declination | -68 21 05.98 (0.03) | -68 21 05.87 | -68 21 05.81 (0.03) | ||
Spectral type | sdB | sdB | |||
Effective temperature | [K] | ||||
log(g) | [cgs] | ||||
Mass | [M☉] | ||||
log(Luminosity) | [L☉] | ||||
Cooling age | [Gyr] | ||||
log(H/He) | |||||
log(C/He) | |||||
log(Ca/He) | |||||
log(Ca/H) | |||||
Parallax | [mas] | 0.84 (0.04) | 0.85 (0.08) | 0.84 (0.04) | |
Distance | [pc] | 1188.50 (60) | 1172.47 (110) | 1188.50 (60) | |
Composition | |||||
Proper motion (right ascension) | [mas/yr] | 15.812 (0.03) | 15.825 (0.08) | 15.812 (0.03) | |
Proper motion (declination) | [mas/yr] | -10.479 (0.03) | -10.458 (0.09) | -10.479 (0.03) | |
Variability | |||||
Magnetic | |||||
Bd | [MG] | ||||
Infrared excess (disk) | |||||
Binarity | |||||
B magnitude | 15.41 | ||||
V magnitude | 15.59 | ||||
R magnitude | 15.94 (0.09) | ||||
I magnitude | |||||
J magnitude | 16.18 (0.1) | 16.18 (0.1) | |||
H magnitude | 16.14 (0.2) | 16.14 (0.2) | |||
K magnitude | 16.13 | ||||
u magnitude | |||||
g magnitude | |||||
r magnitude | |||||
i magnitude | |||||
z magnitude | |||||
G magnitude | 15.62 (0.003) | 15.64 (0.0008) | 15.62 (0.003) | ||
BP magnitude | 15.49 (0.004) | 15.42 (0.007) | |||
RP magnitude | 15.94 (0.008) | 15.90 (0.003) | |||
Pan g magnitude | |||||
Pan r magnitude | |||||
Pan i magnitude | |||||
Pan z magnitude | |||||
Pan y magnitude | |||||
E(B-V) | 0.028 |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.