Gaia DR2 4394490832237094144

All names: WDJ170804.21+064508.99, Gaia DR2 4394490832237094144, WDJ17084.21+064508.99, Gaia DR3 4394490832237094144, Gaia EDR3 4394490832237094144

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 08 04.22 (0.08) 17 08 04.22 17 08 04.22 17 08 04.21 (0.08) 17 08 04.22
Declination 06 45 09.00 (0.06) 06 45 09.00 06 45 09.00 06 45 08.99 (0.06) 06 45 09.00
Spectral type DA: DA
Effective temperature [K] 5199.0 4885.0 5345.0 (42)
log(g) [cgs] 7.89 7.67 7.97 (0.02)
Mass [M] 0.515 0.387 0.564 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.3610 3.0390
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 21.08 (0.1) 21.20 (0.1) 21.08 21.08 (0.1) 21.20 (0.1)
Distance [pc] 47.43 (0.2) 47.18 (0.3) 47.43 47.43 (0.2) 47.18 (0.3)
Composition
Proper motion (right ascension) [mas/yr] 10.3369696 (0.1) 10.16528617 (0.2) 10.337 (0.1) 10.16528617
Proper motion (declination) [mas/yr] 0.552782235 (0.09) 0.427520825 (0.2) 0.553 (0.09) 0.427520825
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 17.93 (0.01) 17.94 17.93 17.93 (0.003) 17.94
BP magnitude 18.32 (0.01) 18.35 18.35
RP magnitude 17.29 (0.009) 17.29 17.29
Pan g magnitude 18.38 (0.005)
Pan r magnitude 17.89 (0.004)
Pan i magnitude 17.67 (0.008)
Pan z magnitude 17.57 (0.007)
Pan y magnitude 17.50 (0.01)
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.