WD 0240+008

All names: Gaia DR3 2498928486686282368, SDSS J024332.73+010112.3, SDSS J024332.77+010111.1, SDSS J024332.74+010112.4, Gaia DR2 2498928486686282368, SDSS J024332.75+010111.9, WD 0240+008, J0243+0101, SDSS J024332.75+010111.8, Gaia EDR3 2498928486686282368

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2005 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 02 43 32.80 (0.9) 02 43 32.78 02 43 32.78 02 43 32.80 (0.7) 02 43 32.74 (0.9) 02 43 32.75 02 43 31.44 02 43 32.74
Declination 01 01 10.35 (0.8) 01 01 11.19 01 01 11.19 01 01 10.41 (0.6) 01 01 12.21 (0.8) 01 01 11.91 01 01 11.64 01 01 12.35
Spectral type DQ DQ DQ DQ DQ DQ hotDQ
Effective temperature [K] 8225.0 (172) 8330.0 (190) 10174.0 (109) 10172.0 (103)
log(g) [cgs] 8.63 8.00 (0) 7.95 (0.6) 8.39 (0.9)
Mass [M] 0.9854
log(Luminosity) [L]
Cooling age [Gyr] 2.9000
log(H/He)
log(C/He) -4.2332 (0.2) -3.77 (0.08)
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] 5.48 (0.8) 5.72 5.72 (0.8) 5.48 (0.8)
Distance [pc] 182.44 (27) 174.89 (24) 174.89 (24) 294.00 182.44 (27)
Composition He He
Proper motion (right ascension) [mas/yr] 58.4230596 (1) 58.92909554 (2) 58.423 (1) 60.7
Proper motion (declination) [mas/yr] -116.5376414 (1) -117.4719029 (1) -116.538 (1) -122.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.33 (0.04) 20.33 (0.04) 20.44 (0.07) 20.43 20.45 (0.06)
g magnitude 20.38 (0.02) 20.38 (0.02) 20.37 (0.03) 20.36 20.38 (0.03)
r magnitude 20.25 (0.02) 20.25 (0.02) 20.29 (0.03) 20.30 20.29 (0.03)
i magnitude 20.31 (0.03) 20.31 (0.03) 20.32 (0.04) 20.33 20.32 (0.04)
z magnitude 20.65 (0.1) 20.25 (0.1) 20.27 (0.1) 20.27 20.27 (0.1)
G magnitude 20.26 (0.08) 20.37 20.26 (0.008)
BP magnitude 20.56 (0.08) 20.17
RP magnitude 20.07 (0.1) 19.92
Pan g magnitude 20.34 (0.01)
Pan r magnitude 20.32 (0.01)
Pan i magnitude 20.37 (0.01)
Pan z magnitude 20.46 (0.03)
Pan y magnitude 20.66 (0.2)
E(B-V) 0.013

* 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.