EC 20238-2824

All names: EC 20238-2824, UCAC4 309-258778, GALEX J202654.7-281426, 2MASS J20265468-2814267, TIC 164679371, EC20238-2824, Gaia DR3 6798058606725255040, Gaia DR2 6798058606725255040

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 20 26 54.79 20 26 54.69 (0.05)
Declination -28 14 26.88 -28 14 26.76 (0.03)
Spectral type sdB+F sdB+F
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] 0.32 (0.07) 0.25 (0.06)
Distance [pc] 3169.57 (736) 4008.02 (1035)
Composition
Proper motion (right ascension) [mas/yr] 4.111 (0.1) 4.17 (0.05)
Proper motion (declination) [mas/yr] -6.88 (0.07) -6.912 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.93
V magnitude 15.80
R magnitude 16.31 (0.3)
I magnitude
J magnitude 15.17 (0.04) 15.17 (0.04)
H magnitude 14.88 (0.07) 14.88 (0.07)
K magnitude 15.02 (0.1) 15.02 (0.1)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.74 (0.0007) 15.73 (0.003)
BP magnitude 15.80 (0.004)
RP magnitude 15.52 (0.003)
Pan g magnitude 15.85 (0.004)
Pan r magnitude 15.83 (0.002)
Pan i magnitude 15.85 (0.001)
Pan z magnitude 15.92 (0.002)
Pan y magnitude 15.94 (0.005)
E(B-V) 0.059

* 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.