Gaia DR2 1026514226174393344

All names: WDJ093936.40+591145.72, SDSS J093936.38+591145.7, USNO-B1.0 1491-00191140, J0939+5911, Gaia DR3 1026514226174393344, Gaia EDR3 1026514226174393344, WDJ093936.4+591145.72, SDSS J093936.39+591145.7, Gaia DR2 1026514226174393344, LSPM J0939+5911

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 09 39 36.09 (0.1) 09 39 36.10 09 39 36.09 09 39 36.40 (0.1) 09 39 36.10
Declination 59 11 43.96 (0.1) 59 11 44.01 59 11 43.96 59 11 45.71 (0.1) 59 11 44.01
Spectral type DC DC DC DA DC
Effective temperature [K] 6223.0 (52) 5935.0 (60) 5931.0 (50) 6473.0 6230.0 6640.0 (121)
log(g) [cgs] 8.23 (0.02) 8.10 (0.03) 8.08 (0.03) 8.36 8.24 8.41 (0.04)
Mass [M] 0.721 (0.02) 0.631 (0.03) 0.622 (0.03) 0.82 0.727 0.853 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 3.5000 3.8850 3.8360
log(H/He) -3.0 -3
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] 10.61 (0.2) 10.64 (0.3) 10.64 (0.3) 10.61 10.61 (0.2) 10.64 (0.3)
Distance [pc] 94.27 (2) 93.98 (2) 93.95 (2) 94.27 94.27 (2) 93.95 (2)
Composition He He
Proper motion (right ascension) [mas/yr] -144.7796725 (0.1) -145.3382066 (0.4) -144.78 (0.1) -145.3382066
Proper motion (declination) [mas/yr] -109.6488803 (0.2) -110.1092482 (0.4) -109.649 (0.2) -110.1092482
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.90
V magnitude
R magnitude 19.00
I magnitude
J magnitude 18.35 (0.07)
H magnitude
K magnitude
u magnitude 20.14 (0.04) 20.13 (0.04) 20.13 (0.04)
g magnitude 19.39 (0.01) 19.39 (0.01)
r magnitude 19.13 (0.01) 19.13 (0.01)
i magnitude 19.06 (0.01) 19.06 (0.01)
z magnitude 19.04 (0.05) 19.04 (0.05)
G magnitude 19.11 (0.02) 19.14 19.11 19.11 (0.003) 19.14
BP magnitude 19.39 (0.02) 19.32 19.32
RP magnitude 18.73 (0.02) 18.67 18.67
Pan g magnitude 19.36 (0.006) 19.36 (0.008)
Pan r magnitude 19.12 (0.007) 19.12 (0.007)
Pan i magnitude 19.04 (0.005) 19.04 (0.006)
Pan z magnitude 19.08 (0.01) 19.08 (0.009)
Pan y magnitude 19.06 (0.03) 19.06 (0.03)
E(B-V) 0.006

* 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.