Gaia DR2 1004109340296754944

All names: Gaia DR2 1004109340296754944, GD 441, WDJ063958.14+614725.10, Gaia DR3 1004109340296754944, Gaia EDR3 1004109340296754944, USNO-B1.0 1517-00154305, 2MASS J06395807+6147252, LSPM J0639+6147, TIC 55596721, WDJ063958.14+614725.09

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 06 39 58.52 (0.04) 06 39 58.51 06 39 58.52 06 39 58.14 (0.04) 06 39 58.51
Declination 61 47 23.09 (0.05) 61 47 23.15 61 47 23.09 61 47 25.10 (0.05) 61 47 23.15
Spectral type DA DA
Effective temperature [K] 9721.0 9724.0 9634.0 (90)
log(g) [cgs] 7.97 7.91 7.96 (0.02)
Mass [M] 0.584 0.527 0.575 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.6268 0.5947
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.93 (0.07) 13.01 (0.1) 12.93 12.93 (0.07) 13.01 (0.1)
Distance [pc] 77.34 (0.4) 76.89 (0.7) 77.34 77.34 (0.4) 76.89 (0.7)
Composition
Proper motion (right ascension) [mas/yr] 168.9014824 (0.05) 169.0903925 (0.1) 168.901 (0.05) 169.0903925
Proper motion (declination) [mas/yr] -125.4133195 (0.05) -125.3464225 (0.1) -125.413 (0.05) -125.3464225
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.50
V magnitude
R magnitude 16.90
I magnitude
J magnitude 16.66 (0.2)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.65 (0.004) 16.67 16.65 16.65 (0.003) 16.67
BP magnitude 16.72 (0.004) 16.70 16.70
RP magnitude 16.57 (0.004) 16.56 16.56
Pan g magnitude 16.66 (0.004)
Pan r magnitude 16.74 (0.003)
Pan i magnitude 16.87 (0.003)
Pan z magnitude 17.03 (0.004)
Pan y magnitude 17.12 (0.009)
E(B-V) 0.002

* 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.