EC 20081-3205

All names: TIC 48939546, EC 20081-3205, GALEX J201118.7-315606, Gaia DR3 6700716918173536768, EC20081-3205, Gaia DR2 6700716918173536768, Gaia EDR3 6700716986890771456, 2MASS J20111873-3156055

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 11 18.54 (0.7) 20 11 18.64 20 11 18.75 (0.05)
Declination -31 56 04.56 (0.7) -31 56 06.36 -31 56 06.11 (0.05)
Spectral type He-sdO sdOHe
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] 3.07 (0.9) 0.24 (0.09) 0.27 (0.07)
Distance [pc] 325.92 (94) 4240.88 (1593) 3759.40 (950)
Composition
Proper motion (right ascension) [mas/yr] -6.519 (0.9) -0.224 (0.1) 0.1 (0.06)
Proper motion (declination) [mas/yr] -9.003 (0.7) -4.375 (0.1) -4.645 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.05
V magnitude 16.23
R magnitude
I magnitude
J magnitude 16.20 (0.1) 16.20 (0.1)
H magnitude 16.55
K magnitude 16.05
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 20.32 (0.009) 16.22 (0.002) 16.19 (0.003)
BP magnitude 20.44 (0.2) 16.00 (0.009)
RP magnitude 19.62 (0.08) 16.39 (0.009)
Pan g magnitude 16.01
Pan r magnitude 16.28
Pan i magnitude 16.71 (0.002)
Pan z magnitude 16.69
Pan y magnitude 16.78
E(B-V) 0.087

* 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.