SDSS J082453.12+303100.5

All names: SDSS J082453.13+303100.5, SDSS J082453.12+303100.5, GALEX J082453.1+303100, Gaia DR3 708828002234517248, WD 0821+306, Gaia DR2 708828002234517248, SDSS J082453.12+303100.4, Gaia EDR3 708828002234517248

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 08 24 53.13 (0.6) 08 24 53.12 08 24 53.13 (0.7) 08 24 53.12 (0.6) 08 24 53.13 08 24 52.78 08 24 53.13
Declination 30 31 00.01 (0.6) 30 31 00.44 30 31 00.02 (0.5) 30 31 00.59 (0.6) 30 31 00.51 30 30 55.44 30 31 00.50
Spectral type DA DA DA_auto DA DA
Effective temperature [K] 12119.0 14711.0 (1219) 14824.0 (1386)
log(g) [cgs] 7.94 7.67 (0.2) 7.67 (0.3)
Mass [M] 0.572 0.471 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.3366
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] -0.90 (0.7) -1.83 (0.8)
Distance [pc]
Composition H
Proper motion (right ascension) [mas/yr] 11.76548556 (0.8) 11.3819753 (1) 11.765 (0.8) 17.3
Proper motion (declination) [mas/yr] -36.30061472 (0.8) -36.00098853 (1) -36.301 (0.8) -44.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.60 (0.05) 20.60 (0.05) 20.51 (0.06) 20.51 20.50 (0.06)
g magnitude 20.20 (0.02) 20.20 (0.02) 20.24 (0.03) 20.24 20.23 (0.03)
r magnitude 20.42 (0.03) 20.42 (0.03) 20.41 (0.04) 20.41 20.41 (0.04)
i magnitude 20.56 (0.04) 20.56 (0.04) 20.64 (0.06) 20.64 20.63 (0.06)
z magnitude 20.87 (0.2) 20.71 (0.2) 20.70 (0.2) 20.71 20.69 (0.2)
G magnitude 20.33 (0.08) 20.40 20.33 (0.008)
BP magnitude 20.36 (0.08) 20.42
RP magnitude 20.23 (0.2) 20.54
Pan g magnitude 20.22 (0.02)
Pan r magnitude 20.45 (0.01)
Pan i magnitude 20.69 (0.03)
Pan z magnitude 20.95 (0.1)
Pan y magnitude
E(B-V)

* 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.