Gaia DR2 1067421801098857728

All names: SDSS J092320.90+642802.5, Gaia DR2 1067421801098857728, USNO-B1.0 1544-00157461, Gaia DR3 1067421801098857728, WDJ092321.01+642803.70, SDSS J092320.89+642802.5, Gaia EDR3 1067421801098857728, WDJ092321.01+642803.71, LSPM J0923+6428

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 09 23 20.56 (0.09) 09 23 20.57 09 23 20.56 09 23 21.01 (0.09) 09 23 20.57
Declination 64 27 58.75 (0.1) 64 27 58.90 64 27 58.75 64 28 03.71 (0.1) 64 27 58.90
Spectral type DC DA DA
Effective temperature [K] 4962.0 (58) 3818.0 5395.0 (65)
log(g) [cgs] 7.90 (0.03) 7.14 8.16 (0.03)
Mass [M] 0.51 (0.02) 0.194 0.682 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.9690
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 15.93 (0.2) 16.37 (0.2) 15.93 15.93 (0.2) 16.37 (0.2)
Distance [pc] 62.77 (0.6) 61.10 (0.9) 62.77 62.77 (0.6) 61.10 (0.9)
Composition He
Proper motion (right ascension) [mas/yr] -183.081686 (0.1) -182.7064289 (0.2) -183.082 (0.1) -182.7064289
Proper motion (declination) [mas/yr] -309.7796584 (0.2) -309.8178122 (0.4) -309.78 (0.2) -309.8178122
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.80
V magnitude
R magnitude 17.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.59 (0.07) 20.59 (0.07)
g magnitude 19.28 (0.01) 19.28 (0.01)
r magnitude 18.70 (0.01) 18.70 (0.01)
i magnitude 18.50 (0.01) 18.50 (0.01)
z magnitude 18.39 (0.03) 18.39 (0.03)
G magnitude 18.73 (0.03) 18.76 18.73 18.73 (0.003) 18.76
BP magnitude 19.15 (0.03) 19.22 19.22
RP magnitude 18.13 (0.02) 18.13 18.13
Pan g magnitude 19.15 (0.02)
Pan r magnitude 18.70 (0.004)
Pan i magnitude 18.52 (0.006)
Pan z magnitude 18.46 (0.02)
Pan y magnitude 18.39 (0.04)
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.