Gaia DR2 2177744858009335552

All names: Gaia DR3 2177744858009335552, TIC 430120010, Gaia EDR3 2177744858009335552, IPHAS J213520.74+561049.3, Lan 444, WDJ213520.69+561049.25, WDJ213520.69+561049.26, Gaia DR2 2177744858009335552, 2MASS J21352069+5610490

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 21 35 20.82 (0.04) 21 35 20.81 21 35 20.82 21 35 20.69 (0.04) 21 35 20.81
Declination 56 10 49.52 (0.04) 56 10 49.51 56 10 49.52 56 10 49.26 (0.04) 56 10 49.51
Spectral type DB D
Effective temperature [K] 11380.0 12059.0 13977.0 (191)
log(g) [cgs] 7.93 7.93 8.13 (0.02)
Mass [M] 0.562 0.546 0.668 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.3917 0.3430
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.53 (0.04) 10.53 (0.06) 10.53 10.53 (0.04) 10.53 (0.06)
Distance [pc] 94.98 (0.4) 94.93 (0.6) 94.98 94.98 (0.4) 94.93 (0.6)
Composition
Proper motion (right ascension) [mas/yr] 65.47925648 (0.05) 65.45002323 (0.1) 65.479 (0.05) 65.45002323
Proper motion (declination) [mas/yr] 16.46070526 (0.05) 16.47882068 (0.1) 16.461 (0.05) 16.47882068
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude
R magnitude
I magnitude
J magnitude 16.41 (0.1)
H magnitude 16.49
K magnitude 16.19
u magnitude
g magnitude
r magnitude 16.60 (0)
i magnitude 16.58 (0.01)
z magnitude
G magnitude 16.54 (0.003) 16.57 16.54 16.54 (0.003) 16.57
BP magnitude 16.49 (0.003) 16.46 16.46
RP magnitude 16.57 (0.004) 16.56 16.56
Pan g magnitude 16.50 (0.002)
Pan r magnitude 16.71 (0.003)
Pan i magnitude 16.93 (0.002)
Pan z magnitude 17.10 (0.005)
Pan y magnitude 17.20 (0.01)
E(B-V) 0.008

* 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.