Gaia DR2 4547072324269430784

All names: WDJ172017.93+163624.52, Gaia DR3 4547072324269430784, Gaia EDR3 4547072324269430784, WDJ172017.93+163624.53, Gaia DR2 4547072324269430784

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 20 17.94 (0.1) 17 20 17.94 17 20 17.94 17 20 17.93 (0.1) 17 20 17.94
Declination 16 36 22.83 (0.1) 16 36 22.88 16 36 22.83 16 36 24.53 (0.1) 16 36 22.88
Spectral type DA DA
Effective temperature [K] 6808.0 6555.0 6888.0 (118)
log(g) [cgs] 7.97 7.84 8.01 (0.04)
Mass [M] 0.572 0.484 0.598 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.5530 1.5150
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.69 (0.1) 10.61 (0.2) 10.69 10.69 (0.1) 10.61 (0.2)
Distance [pc] 93.58 (1) 94.28 (2) 93.58 93.58 (1) 94.28 (2)
Composition
Proper motion (right ascension) [mas/yr] 9.49515114 (0.1) 9.807985001 (0.3) 9.495 (0.1) 9.807985001
Proper motion (declination) [mas/yr] -106.4613281 (0.1) -106.1488441 (0.3) -106.461 (0.1) -106.1488441
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 18.35 (0.02) 18.38 18.35 18.35 (0.003) 18.38
BP magnitude 18.59 (0.02) 18.60 18.60
RP magnitude 18.00 (0.02) 18.00 18.00
Pan g magnitude 18.57 (0.006)
Pan r magnitude 18.38 (0.006)
Pan i magnitude 18.34 (0.005)
Pan z magnitude 18.36 (0.007)
Pan y magnitude 18.40 (0.01)
E(B-V) 0.014

* 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.