All names: Gaia DR2 6586323213022942464, EC 21373-3727, GALEXJ214022.87-371414.05, GALEX J214022.8-371414, Gaia DR1 6586323208725599616, Gaia EDR3 6586323487898790656, TYC 7493-652-1, TIC 320965274, Gaia DR3 6586323213022942464, 2MASS J21402289-3714159
Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
---|---|---|---|---|---|
Right ascension | 21 40 19.46 (0.7) | 21 40 22.94 | 21 40 22.90 (0.02) | ||
Declination | -37 13 07.35 (0.7) | -37 14 15.72 | -37 14 15.80 (0.02) | ||
Spectral type | sdB+F6V | sdB+F6V | |||
Effective temperature | [K] | 32660.0 (2610) | |||
log(g) | [cgs] | 5.80 (0.3) | |||
Mass | [M☉] | ||||
log(Luminosity) | [L☉] | ||||
Cooling age | [Gyr] | ||||
log(H/He) | |||||
log(C/He) | |||||
log(Ca/He) | |||||
log(Ca/H) | |||||
Parallax | [mas] | 1.52 (1) | 1.20 (0.07) | 1.46 (0.03) | |
Distance | [pc] | 658.80 (457) | 831.88 (45) | 683.39 (16) | |
Composition | |||||
Proper motion (right ascension) | [mas/yr] | -1.32 (0.8) | -9.721 (0.09) | -10.167 (0.03) | |
Proper motion (declination) | [mas/yr] | -9.589 (0.8) | 3.428 (0.09) | 2.93 (0.02) | |
Variability | |||||
Magnetic | |||||
Bd | [MG] | ||||
Infrared excess (disk) | |||||
Binarity | |||||
B magnitude | 12.57 (0.2) | ||||
V magnitude | 12.84 (0.2) | ||||
R magnitude | |||||
I magnitude | |||||
J magnitude | 12.11 (0.03) | 12.11 (0.03) | |||
H magnitude | 11.90 (0.03) | 11.90 (0.03) | |||
K magnitude | 11.82 (0.03) | 11.82 (0.03) | |||
u magnitude | |||||
g magnitude | |||||
r magnitude | |||||
i magnitude | |||||
z magnitude | |||||
G magnitude | 20.59 (0.008) | 12.66 (0.0005) | 12.65 (0.003) | ||
BP magnitude | 20.87 (0.08) | 12.70 (0.005) | |||
RP magnitude | 20.19 (0.1) | 12.45 (0.0008) | |||
Pan g magnitude | |||||
Pan r magnitude | |||||
Pan i magnitude | |||||
Pan z magnitude | |||||
Pan y magnitude | |||||
E(B-V) | 0.021 |
* 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.