Gaia DR2 6916942197670351872

All names: WDJ205523.70-013208.04, Gaia EDR3 6916942197670351872, WDJ205523.7-013208.03, Gaia DR2 6916942197670351872, Gaia DR3 6916942197670351872, SDSS J205523.77-013208.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 55 23.83 (0.1) 20 55 23.83 20 55 23.83 20 55 23.70 (0.1) 20 55 23.83
Declination -01 32 09.40 (0.08) -01 32 09.35 -01 32 09.40 -01 32 08.04 (0.08) -01 32 09.35
Spectral type DC DC
Effective temperature [K] 4927.0 4609.0 4929.0 (49)
log(g) [cgs] 7.90 7.67 7.89 (0.03)
Mass [M] 0.518 0.389 0.514 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 4.8160 3.6530
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 17.91 (0.2) 17.76 (0.3) 17.91 17.91 (0.2) 17.76 (0.3)
Distance [pc] 55.85 (0.5) 56.32 (0.8) 55.85 55.85 (0.5) 56.32 (0.8)
Composition
Proper motion (right ascension) [mas/yr] 127.1584834 (0.2) 127.3695044 (0.4) 127.158 (0.2) 127.3695044
Proper motion (declination) [mas/yr] -84.66838109 (0.2) -84.91677643 (0.3) -84.668 (0.2) -84.91677643
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.84 (0.1) 20.84 (0.1)
g magnitude 19.28 (0.01) 19.28 (0.01)
r magnitude 18.51 (0.01) 18.51 (0.01)
i magnitude 18.16 (0.01) 18.16 (0.01)
z magnitude 18.06 (0.03) 18.06 (0.03)
G magnitude 18.55 (0.02) 18.57 18.55 18.55 (0.003) 18.57
BP magnitude 19.06 (0.02) 19.06 19.06
RP magnitude 17.88 (0.01) 17.90 17.90
Pan g magnitude 19.16 (0.005)
Pan r magnitude 18.51 (0.008)
Pan i magnitude 18.24 (0.005)
Pan z magnitude 18.16 (0.008)
Pan y magnitude 18.14 (0.008)
E(B-V) 0.001

* 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.