SDSS J101217.24+443529.1

All names: SDSS J101217.24+443529.2, Gaia DR2 808936302560071040, SDSS J101217.24+443529.1, Gaia EDR3 808936302560071040, WD 1009+448, J1012+4435, SDSS J101217.23+443529.0, Gaia DR3 808936302560071040

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 12 17.22 (0.5) 10 12 17.24 10 12 17.26 10 12 17.22 (1) 10 12 17.25 (0.5) 10 12 17.24 10 12 17.09 10 12 17.24
Declination 44 35 28.98 (0.6) 44 35 29.08 44 35 29.14 44 35 28.99 (2) 44 35 29.18 (0.6) 44 35 29.19 44 35 27.60 44 35 29.25
Spectral type DZ DZ DZ+M DZ DZ DZM: DZ
Effective temperature [K] 9065.0 (483) 7870.0 10234.0 (162) 10118.0 (53)
log(g) [cgs] 8.75 8.42 8.11 (0.6) 8.89 (0.8)
Mass [M] 1.0594 0.866
log(Luminosity) [L]
Cooling age [Gyr] 2.5700 2.5540
log(H/He) <-4.8188
log(C/He)
log(Ca/He) -8.4795 (0.7)
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] 1.90 (0.9) 4.56 4.56 (3) 1.90 (0.9)
Distance [pc] 525.68 (235) 219.45 (162) 219.45 (162) 525.68 (235)
Composition He He
Proper motion (right ascension) [mas/yr] -22.56900225 (0.7) -23.59444197 (2) -22.569 (0.7) -24.2
Proper motion (declination) [mas/yr] -12.44451346 (0.8) -9.671597092 (2) -12.445 (0.8) -6.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.70 (0.07) 20.69 (0.09) 20.70 (0.08) 20.70 20.70 (0.08)
g magnitude 20.38 (0.03) 20.41 (0.03) 20.44 (0.04) 20.43 20.43 (0.04)
r magnitude 20.50 (0.04) 20.54 (0.04) 20.59 (0.05) 20.57 (0.05)
i magnitude 20.53 (0.05) 20.54 (0.05) 20.59 (0.05) 20.59 (0.05)
z magnitude 20.33 (0.2) 20.32 (0.2) 20.35 (0.2) 20.36 (0.2)
G magnitude 20.49 (0.1) 20.55 20.49 (0.008)
BP magnitude 20.56 (0.1) 20.42
RP magnitude 20.24 (0.1) 20.17
Pan g magnitude 20.48 (0.03)
Pan r magnitude 20.51 (0.03)
Pan i magnitude 20.54 (0.02)
Pan z magnitude 20.53 (0.08)
Pan y magnitude
E(B-V) 0.019

* 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.