SDSS J082146.36+261627.7

All names: SDSS J082146.36+261627.7, Gaia DR2 682870113250501632, SDSS J082146.36+261627.8, WD 0818+264.1, GALEX J082146.4+261627, Gaia EDR3 682870113250501632, Gaia DR3 682870113250501632

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 08 21 46.35 (0.4) 08 21 46.36 08 21 46.35 (0.5) 08 21 46.37 (0.4) 08 21 46.36 08 21 45.84 08 21 46.36
Declination 26 16 27.65 (0.2) 26 16 27.76 26 16 27.66 (0.3) 26 16 27.75 (0.2) 26 16 27.78 26 16 24.24 26 16 27.77
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 12784.0 13725.0 (542) 13585.0 (535)
log(g) [cgs] 8.41 7.86 (0.1) 7.87 (0.1)
Mass [M☉] 0.868 0.543 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.5946
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] 2.69 (0.5) 3.44 (0.7) 2.69 (0.5)
Distance [pc] 372.38 (67) 291.03 (56) 372.38 (67)
Composition H
Proper motion (right ascension) [mas/yr] -13.18283148 (0.4) -10.79224941 (1) -13.183 (0.4) -0.3
Proper motion (declination) [mas/yr] -5.925711619 (0.3) -5.375692139 (0.6) -5.926 (0.3) -7.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.84 (0.04) 19.84 (0.04) 19.83 (0.04) 19.83 19.80 (0.04)
g magnitude 19.41 (0.01) 19.41 (0.01) 19.42 (0.02) 19.42 19.41 (0.02)
r magnitude 19.66 (0.02) 19.66 (0.02) 19.69 (0.02) 19.69 19.68 (0.02)
i magnitude 19.89 (0.03) 19.89 (0.03) 19.87 (0.03) 19.88 19.87 (0.03)
z magnitude 19.99 (0.1) 19.99 (0.1) 20.29 (0.1) 20.30 20.30 (0.1)
G magnitude 19.53 (0.06) 19.58 19.53 (0.005)
BP magnitude 19.54 (0.06) 19.55
RP magnitude 19.62 (0.1) 19.56
Pan g magnitude 19.44 (0.01)
Pan r magnitude 19.66 (0.009)
Pan i magnitude 19.87 (0.02)
Pan z magnitude 20.06 (0.04)
Pan y magnitude 20.32 (0.2)
E(B-V) 0.020

* 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.