Gaia DR2 1655757824443490688

All names: GALEX J174200.9+750554, Gaia DR3 1655757824443490688, WDJ174200.93+750555.53, Gaia EDR3 1655757824443490688, WDJ17420.93+750555.52, Gaia DR2 1655757824443490688

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 17 42 00.97 (0.04) 17 42 00.97 17 42 00.97 17 42 00.93 (0.04) 17 42 00.97
Declination 75 05 54.02 (0.05) 75 05 54.06 75 05 54.02 75 05 55.53 (0.05) 75 05 54.06
Spectral type DA DA
Effective temperature [K] 8479.0 8243.0 8454.0 (78)
log(g) [cgs] 7.97 7.88 7.96 (0.02)
Mass [M] 0.581 0.51 0.573 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.8903 0.8859
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 15.52 (0.05) 15.54 (0.06) 15.52 15.52 (0.05) 15.54 (0.06)
Distance [pc] 64.45 (0.2) 64.35 (0.2) 64.45 64.45 (0.2) 64.35 (0.2)
Composition
Proper motion (right ascension) [mas/yr] 9.911783244 (0.05) 9.7370234 (0.1) 9.912 (0.05) 9.7370234
Proper motion (declination) [mas/yr] -94.53115012 (0.06) -94.5024094 (0.2) -94.531 (0.06) -94.5024094
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.73 (0.006) 16.75 16.73 16.73 (0.003) 16.75
BP magnitude 16.85 (0.006) 16.84 16.84
RP magnitude 16.54 (0.006) 16.55 16.55
Pan g magnitude 16.83 (0.003)
Pan r magnitude 16.80 (0.007)
Pan i magnitude 16.86 (0.003)
Pan z magnitude 16.99 (0.008)
Pan y magnitude 17.05 (0.006)
E(B-V) 0.007

* 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.