SDSS J083839.37+323031.8

All names: SDSS J083839.38+323031.8, Gaia EDR3 710232907514841344, Gaia DR2 710232907514841344, Gaia DR3 710232907514841344, SDSS J083839.38+323031.9, SDSS J083839.37+323031.8, SDSS J083839.37+323031.9, WD 0835+326, GALEX J083839.3+323031

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 38 39.38 (0.3) 08 38 39.38 08 38 39.38 (0.4) 08 38 39.37 (0.3) 08 38 39.38 08 38 38.81 08 38 39.38
Declination 32 30 30.79 (0.1) 32 30 31.84 32 30 30.83 (0.2) 32 30 32.09 (0.1) 32 30 31.86 32 30 25.56 32 30 31.85
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 12186.0 12510.0 (420) 13006.0 (319) 12993.0 (395)
log(g) [cgs] 7.44 8.02 (0.1) 7.84 (0.09) 7.93 (0.1)
Mass [M] 0.343 0.62 (0.07) 0.571 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.1918 0.3715
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] 2.50 (0.3) 2.14 (0.5) 2.50 (0.3)
Distance [pc] 400.22 (53) 466.71 (98) 400.22 (53)
Composition H H
Proper motion (right ascension) [mas/yr] 5.937326147 (0.3) 5.502980753 (0.8) 5.937 (0.3) -6.1
Proper motion (declination) [mas/yr] -81.33460093 (0.3) -81.19051657 (0.5) -81.335 (0.3) -20.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.53 (0.03) 19.53 (0.03) 19.53 (0.03) 19.53 19.52 (0.03)
g magnitude 19.13 (0.01) 19.13 (0.01) 19.14 (0.02) 19.13 19.13 (0.02)
r magnitude 19.39 (0.01) 19.39 (0.01) 19.40 (0.02) 19.40 19.40 (0.02)
i magnitude 19.58 (0.02) 19.59 (0.02) 19.58 (0.03) 19.58 19.58 (0.02)
z magnitude 19.82 (0.1) 19.82 (0.1) 19.82 (0.1) 19.82 19.82 (0.1)
G magnitude 19.26 (0.02) 19.31 19.26 (0.004)
BP magnitude 19.26 (0.02) 19.15
RP magnitude 19.35 (0.04) 19.26
Pan g magnitude 19.16 (0.01)
Pan r magnitude 19.37 (0.006)
Pan i magnitude 19.67 (0.02)
Pan z magnitude 19.79 (0.03)
Pan y magnitude 19.94 (0.04)
E(B-V) 0.023

* 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.