Gaia DR2 4549767540800306816

All names: WDJ173120.82+155328.45, Gaia DR2 4549767540800306816, Gaia DR3 4549767540800306816, GALEX J173120.8+155327, Gaia EDR3 4549767540800306816, WDJ173120.82+155328.44

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 31 20.89 (0.08) 17 31 20.89 17 31 20.89 17 31 20.82 (0.08) 17 31 20.89
Declination 15 53 26.54 (0.08) 15 53 26.60 15 53 26.54 15 53 28.45 (0.08) 15 53 26.60
Spectral type DA DA
Effective temperature [K] 9725.0 9436.0 9621.0 (197)
log(g) [cgs] 8.62 8.54 8.58 (0.03)
Mass [M] 0.995 0.929 0.97 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.0170 1.8980
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.74 (0.1) 10.87 (0.2) 10.74 10.74 (0.1) 10.87 (0.2)
Distance [pc] 93.15 (1) 91.98 (2) 93.15 93.15 (1) 91.98 (2)
Composition
Proper motion (right ascension) [mas/yr] 61.35063762 (0.1) 61.0940434 (0.2) 61.351 (0.1) 61.0940434
Proper motion (declination) [mas/yr] -119.3333024 (0.1) -119.3161972 (0.3) -119.333 (0.1) -119.3161972
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 18.09 (0.01) 18.12 18.09 18.09 (0.003) 18.12
BP magnitude 18.18 (0.01) 18.14 18.14
RP magnitude 17.98 (0.01) 17.97 17.97
Pan g magnitude 18.14 (0.006)
Pan r magnitude 18.16 (0.003)
Pan i magnitude 18.28 (0.003)
Pan z magnitude 18.46 (0.008)
Pan y magnitude 18.56 (0.02)
E(B-V) 0.020

* 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.