WD 0847+003

All names: Gaia EDR3 3074654112387834624, SDSS J084953.37+001043.0, Gaia DR2 3074654112387834624, WD 0847+003, GALEX J084953.4+001043, Gaia DR3 3074654112387834624, SDSS J084953.37+001043.10, SDSS J084953.37+001043.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE 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 49 53.37 (0.5) 08 49 53.38 08 49 53.37 (0.8) 08 49 53.38 (0.5) 08 49 53.38 08 49 52.97 08 49 53.37
Declination 00 10 42.89 (0.3) 00 10 43.06 00 10 42.90 (0.7) 00 10 43.09 (0.3) 00 10 43.05 00 10 41.52 00 10 43.07
Spectral type DBA DBA DBA DB3.5 DBA DB:
Effective temperature [K] 15317.0 13963.0 12478.0 15291.0 (566) 14776.0 (624)
log(g) [cgs] 8.44 7.80 7.69 8.38 (0.3) 8.48 (0.4)
Mass [M] 0.871 0.481 0.425
log(Luminosity) [L]
Cooling age [Gyr] 0.2307
log(H/He) -4.103
log(C/He)
log(Ca/He)
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] 1.74 (0.8) 1.56 (1) 1.74 (0.8)
Distance [pc] 573.83 (257) 642.30 (410) 573.82 (257)
Composition He
Proper motion (right ascension) [mas/yr] -1.235829447 (0.7) -2.159047828 (2) -1.236 (0.7) -3.9
Proper motion (declination) [mas/yr] -12.32218513 (0.5) -11.98799112 (1) -12.322 (0.5) -19.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.24 (0.04) 20.26 (0.04) 20.25 (0.05) 20.23 20.24 (0.05)
g magnitude 20.18 (0.02) 20.18 (0.02) 20.19 (0.02) 20.19 20.18 (0.02)
r magnitude 20.45 (0.03) 20.44 (0.03) 20.44 (0.03) 20.44 20.44 (0.03)
i magnitude 20.70 (0.05) 20.69 (0.05) 20.67 (0.05) 20.67 20.68 (0.05)
z magnitude 20.85 (0.2) 20.84 (0.2) 20.84 (0.2) 20.83 20.84 (0.2)
G magnitude 20.30 (0.06) 20.36 20.30 (0.006)
BP magnitude 20.33 (0.06) 20.28
RP magnitude 20.53 (0.09) 20.17
Pan g magnitude 20.24 (0.02)
Pan r magnitude 20.48 (0.02)
Pan i magnitude 20.65 (0.02)
Pan z magnitude 20.81 (0.06)
Pan y magnitude 21.07 (0.2)
E(B-V) 0.028

* 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.