WD 0944+452

All names: SDSS J094723.00+445948.6, Gaia EDR3 820969357814798080, J0947+4459, SDSS J094723.00+445948.7, Gaia DR3 820969357814798080, WD 0944+452, Gaia DR2 820969357814798080, SDSS J094722.99+445948.6, 0944+452B, USNO-B1.0 1349-00213051, SDSS J094722.98+445948.6, WDJ094722.99+445948.59, SDSS J094722.98+445948.5, EQ J0947+4459

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Bergeron et al. 2022 Leggett et al. 2018 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 09 47 23.09 (0.1) 09 47 23.00 09 47 23.09 (0.2) 09 47 23.09 09 47 22.98 (0.1) 09 47 23.09 09 47 22.82
Declination 44 59 49.29 (0.1) 44 59 48.68 44 59 49.27 (0.2) 44 59 49.29 44 59 48.60 (0.1) 44 59 49.27 44 59 47.04
Spectral type DC-IRfaint DC DC DC16.7 DC DC DC: DC DC DC DA:
Effective temperature [K] 4597.0 (44) 4616.0 (46) 4597.0 (44) 3009.0 (27) 7920.0 7589.0
log(g) [cgs] 8.39 (0.02) 8.40 (0.03) 6.86 (0.09) 9.35 9.27
Mass [M] 0.827 (0.01) 0.83 (0.02) 0.827 (0.01) 0.125 (0.02) 1.315 1.285
log(Luminosity) [L]
Cooling age [Gyr] 8.2700 7.7060 3.0720 (0.3) 2.5360 2.4760
log(H/He) -2.58 -2.61 -2.58
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] 18.54 (0.2) 18.50 (0.3) 18.54 (0.4) 18.50 (0.4) 18.54 18.54 (0.2) 18.50 (0.4)
Distance [pc] 53.94 (0.6) 54.05 (1) 53.94 (1) 54.04 (1) 53.94 53.94 (0.6) 54.04 (1)
Composition He
Proper motion (right ascension) [mas/yr] 72.65401904 (0.2) 72.19986769 (0.5) 72.654 (0.2) 72.2
Proper motion (declination) [mas/yr] 43.30774772 (0.2) 43.69281162 (0.5) 43.308 (0.2) 43.693
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.60
V magnitude 19.12 (0.02)
R magnitude 18.70
I magnitude
J magnitude 19.69 (0.07) 19.69 (0.07)
H magnitude 20.34 (0.06) 20.34 (0.06)
K magnitude 20.96 (0.1) 20.96 (0.1)
u magnitude 20.80 (0.06) 20.68 (0.07) 20.80 (0.07) 20.80 (0.07) 20.71
g magnitude 19.46 (0.01) 19.46 (0.01) 19.46 (0.01) 19.45
r magnitude 18.85 (0.01) 18.85 (0.01) 18.85 (0.01) 18.85
i magnitude 18.89 (0.01) 18.89 (0.01) 18.89 (0.01) 18.92
z magnitude 19.49 (0.06) 19.46 (0.06) 19.46 (0.06) 19.40
G magnitude 19.02 (0.02) 19.05 19.02 19.02 (0.003) 19.05
BP magnitude 19.31 (0.02) 19.31 19.31
RP magnitude 18.68 (0.02) 18.67 18.67
Pan g magnitude 19.39 (0.02) 19.39 (0.02)
Pan r magnitude 18.85 (0.009) 18.85 (0.009)
Pan i magnitude 18.95 (0.008) 18.95 (0.008)
Pan z magnitude 19.34 (0.04) 19.34 (0.04)
Pan y magnitude 19.63 (0.03) 19.63 (0.03)
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.