Gaia DR2 545997618721866624

All names: Gaia DR3 545997618721866624, 2MASS J02392815+7300535, Gaia EDR3 545997618721866624, SDSS J023928.07+730054.1, GALEX J023928.0+730053, J0239+7300, WDJ023928.16+730053.67, SDSS J023928.09+730053.9, Gaia DR2 545997618721866624, TIC 396238540

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 02 39 27.96 (0.04) 02 39 27.97 02 39 27.96 02 39 28.16 (0.04) 02 39 27.97
Declination 73 00 54.45 (0.05) 73 00 54.42 73 00 54.45 73 00 53.67 (0.05) 73 00 54.42
Spectral type DA DA DA DA DA
Effective temperature [K] 7856.0 (44) 7823.0 (41) 7857.0 (44) 7728.0 7464.0 7939.0 (65)
log(g) [cgs] 7.94 (0.01) 7.93 (0.01) 7.94 (0.01) 7.90 7.80 7.97 (0.01)
Mass [M] 0.559 (0.008) 0.552 (0.009) 0.558 (0.009) 0.538 0.462 0.574 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.0700 1.0260 1.0230
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 15.28 (0.06) 15.26 (0.09) 15.26 (0.09) 15.28 15.28 (0.06) 15.26 (0.09)
Distance [pc] 65.46 (0.3) 65.53 (0.4) 65.54 (0.4) 65.46 65.46 (0.3) 65.54 (0.4)
Composition H H
Proper motion (right ascension) [mas/yr] -55.92963901 (0.05) -55.7584882 (0.1) -55.93 (0.05) -55.7584882
Proper motion (declination) [mas/yr] 48.42792337 (0.07) 48.16773665 (0.1) 48.428 (0.07) 48.16773665
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.44 (0.1) 16.44 (0.1)
H magnitude 16.38 (0.2) 16.38 (0.2)
K magnitude
u magnitude 17.57 (0.01) 17.58 (0.01) 17.58 (0.01)
g magnitude 17.14 (0.004) 17.14 (0.004)
r magnitude 17.05 (0.005) 17.05 (0.005)
i magnitude 17.05 (0.005) 17.05 (0.005)
z magnitude 17.18 (0.01) 17.18 (0.01)
G magnitude 17.00 (0.005) 17.02 17.00 17.00 (0.003) 17.02
BP magnitude 17.14 (0.005) 17.12 17.12
RP magnitude 16.77 (0.006) 16.77 16.77
Pan g magnitude 17.14 (0.004) 17.14 (0.004)
Pan r magnitude 17.05 (0.004) 17.05 (0.005)
Pan i magnitude 17.08 (0.004) 17.08 (0.004)
Pan z magnitude 17.17 (0.005) 17.17 (0.005)
Pan y magnitude 17.20 (0.01) 17.20 (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.