SDSS J084818.58+331744.9

All names: Gaia DR3 716103505034872064, Gaia DR2 716103505034872064, SDSS J084818.59+331745.0, WD 0845+334, SDSS J084818.58+331744.9, Gaia EDR3 716103505034872064, GALEX J084818.5+331744

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 48 18.59 (0.6) 08 48 18.58 08 48 18.59 (1) 08 48 18.59 (0.6) 08 48 18.59 08 48 18.62 08 48 18.59
Declination 33 17 45.02 (0.4) 33 17 44.93 33 17 45.02 (0.7) 33 17 45.04 (0.4) 33 17 44.96 33 17 41.64 33 17 44.96
Spectral type DA DA DA_auto DA DAB DA
Effective temperature [K] 15768.0 20681.0 (1010) 20152.0 (991)
log(g) [cgs] 8.49 8.13 (0.2) 8.30 (0.2)
Mass [M☉] 0.923
log(Luminosity) [L☉]
Cooling age [Gyr] 0.3834
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] 1.33 (0.8) 2.23 (1) 1.33 (0.8)
Distance [pc] 754.41 (439) 447.52 (218) 754.43 (439)
Composition H
Proper motion (right ascension) [mas/yr] -0.51650506 (0.7) -1.57890788 (2) -0.517 (0.7)
Proper motion (declination) [mas/yr] -0.683708088 (0.5) 1.441968143 (2) -0.684 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.24 (0.05) 20.23 (0.05) 20.21 (0.05) 20.20 20.21 (0.05)
g magnitude 20.25 (0.02) 20.25 (0.02) 20.25 (0.03) 20.24 20.25 (0.03)
r magnitude 20.50 (0.04) 20.50 (0.04) 20.49 (0.04) 20.49 20.49 (0.04)
i magnitude 20.86 (0.07) 20.85 (0.07) 20.84 (0.07) 20.84 20.84 (0.07)
z magnitude 20.86 (0.3) 20.85 (0.3) 20.86 (0.2) 20.86 20.86 (0.2)
G magnitude 20.36 (0.08) 20.44 20.36 (0.006)
BP magnitude 20.32 (0.08) 20.19
RP magnitude 20.20 (0.1) 20.19
Pan g magnitude 20.21 (0.02)
Pan r magnitude 20.53 (0.04)
Pan i magnitude 20.84 (0.03)
Pan z magnitude 20.92 (0.07)
Pan y magnitude
E(B-V) 0.024

* 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.