EC 20021-4542

All names: Gaia DR3 6673318222279804160, Gaia EDR3 6673318222279804160, 2MASS J20054151-4533256, Gaia DR2 6673318222279804160, USNO-A1.0 0375-38684700, [BBW2000] FT 52, FAUST 4565, EC20021-4542, TIC 128971400, GALEX J200541.4-453324, EC 20021-4542

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 05 41.50 (0.04) 20 05 41.45 20 05 41.49 (0.04)
Declination -45 33 25.63 (0.04) -45 33 24.98 -45 33 25.41 (0.04)
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] 0.53 (0.06) 0.38 (0.07) 0.53 (0.06)
Distance [pc] 1887.86 (202) 2620.55 (509) 1887.86 (202)
Composition
Proper motion (right ascension) [mas/yr] 4.825 (0.06) 4.953 (0.1) 4.825 (0.06)
Proper motion (declination) [mas/yr] -13.451 (0.04) -13.4 (0.08) -13.451 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.73
V magnitude 15.93
R magnitude
I magnitude
J magnitude 16.41 (0.09) 16.41 (0.09)
H magnitude 16.44 (0.2) 16.44 (0.2)
K magnitude 16.23
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.79 (0.003) 15.81 (0.001) 15.79 (0.003)
BP magnitude 15.66 (0.004) 15.58 (0.01)
RP magnitude 16.07 (0.005) 16.06 (0.005)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.028

* Constant surface field

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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.