SDSS J094629.78+673854.3

All names: SDSS J094629.78+673854.3, J0946+6738, WDJ094629.78+673854.11, SDSS J094629.78+673854.2, Gaia DR2 1069735341067492224, Gaia DR3 1069735341067492224, SDSS J094629.77+673854.2, GALEX J094629.8+673854, Gaia EDR3 1069735341067492224

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 46 29.74 (0.08) 09 46 29.78 09 46 29.74 (0.1) 09 46 29.74 09 46 29.78 (0.08) 09 46 29.74 09 46 29.78
Declination 67 38 54.88 (0.1) 67 38 54.27 67 38 54.86 (0.2) 67 38 54.88 67 38 54.10 (0.1) 67 38 54.86 67 38 54.28
Spectral type DA DA DA DA DA DA DA DA
Effective temperature [K] 6686.0 (46) 6713.0 (44) 6685.0 (46) 6696.0 6831.0 (98) 6766.0 (49)
log(g) [cgs] 8.05 (0.02) 8.04 (0.02) 8.03 (0.02) 8.04 8.12 (0.03) 7.87 (0.1)
Mass [M] 0.623 (0.01) 0.614 (0.02) 0.608 (0.02) 0.612 0.662 (0.03) 0.523 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 1.8500 1.8000
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] 12.52 (0.1) 12.33 (0.2) 12.33 (0.2) 12.52 12.52 (0.1) 12.33 (0.2)
Distance [pc] 79.87 (0.7) 81.10 (1) 81.07 (1) 79.87 79.87 (0.7) 81.07 (1)
Composition H H H
Proper motion (right ascension) [mas/yr] -16.56511059 (0.1) -16.57650412 (0.2) -16.565 (0.1) -16.57650412
Proper motion (declination) [mas/yr] 48.66799122 (0.1) 48.39076674 (0.3) 48.668 (0.1) 48.39076674
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.04 (0.02) 19.03 (0.02) 19.04 (0.02) 19.04 (0.02) 19.04 (0.03)
g magnitude 18.38 (0.007) 18.38 (0.007) 18.38 (0.007) 18.37 (0.02)
r magnitude 18.19 (0.007) 18.19 (0.007) 18.19 (0.007) 18.18 (0.02)
i magnitude 18.12 (0.009) 18.12 (0.009) 18.12 (0.009) 18.12 (0.04)
z magnitude 18.17 (0.03) 18.17 (0.03) 18.17 (0.03) 18.17 (0.03)
G magnitude 18.19 (0.02) 18.21 18.19 18.19 (0.003) 18.21
BP magnitude 18.40 (0.02) 18.35 18.35
RP magnitude 17.83 (0.02) 17.81 17.81
Pan g magnitude 18.41 (0.006) 18.41 (0.006)
Pan r magnitude 18.20 (0.01) 18.20 (0.01)
Pan i magnitude 18.15 (0.005) 18.15 (0.007)
Pan z magnitude 18.20 (0.01) 18.20 (0.009)
Pan y magnitude 18.17 (0.03) 18.17 (0.02)
E(B-V) 0.004

* 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.