SDSS J001849.43-001204.7

All names: Gaia EDR3 2545263281069744512, GALEX J001849.4-001204, Gaia DR3 2545263281069744512, WD 0016-004, SDSS J001849.47-001204.6, SDSS J001849.44-001204.7, SDSS J001849.43-001204.7, Gaia DR2 2545263281069744512, SDSS J001849.43+001204.7, WD 0016-000, PB 5858, LAMOST J001849.47-001204.6, J0018-0012

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 00 18 49.50 (0.2) 00 18 49.44 00 18 49.43 00 18 49.50 (0.2) 00 18 49.44 00 18 49.50 00 18 49.43 (0.2) 00 18 49.44 00 18 48.74 00 18 49.44
Declination -00 12 04.64 (0.1) -00 12 04.78 -00 12 04.77 -00 12 04.64 (0.1) -00 12 04.79 -00 12 04.64 -00 12 04.77 (0.1) -00 12 04.71 -00 12 02.52 -00 12 04.71
Spectral type DZ DZ DZ DZ DZ DZ DZ DZ
Effective temperature [K] 9958.0 (331) 9600.0 (170) 9742.0 (292) 10544.0 (216) 10520.0 (257)
log(g) [cgs] 8.16 8.00 7.97 (0.05) 7.60 (0.3) 8.93 (0.6)
Mass [M] 0.6789 0.56 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.8010
log(H/He) <-5.814 <-5.0
log(C/He)
log(Ca/He) -9.2781 (0.04) -9.83 (0.07)
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] 6.35 (0.2) 6.61 6.61 (0.2) 6.35 6.35 (0.2)
Distance [pc] 157.54 (5) 151.36 (5) 151.36 (5) 157.00 157.54 157.54 (5)
Composition He He
Proper motion (right ascension) [mas/yr] 60.21470484 (0.3) 60.24706292 (0.6) 60.215 (0.3) 58.9
Proper motion (declination) [mas/yr] 8.627270862 (0.2) 8.287992536 (0.3) 8.627 (0.2) 9.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.52 (0.02) 18.52 (0.02) 18.53 (0.03) 18.52 18.53 (0.03)
g magnitude 18.36 (0.007) 18.36 (0.007) 18.38 (0.02) 18.37 18.38 (0.02)
r magnitude 18.47 (0.009) 18.47 (0.009) 18.45 (0.02) 18.44 18.45 (0.02)
i magnitude 18.62 (0.01) 18.61 (0.01) 18.61 (0.03) 18.60 18.60 (0.02)
z magnitude 18.85 (0.04) 18.85 (0.04) 18.86 (0.05) 18.85 18.86 (0.05)
G magnitude 18.39 (0.01) 18.42 18.39 18.39 (0.003)
BP magnitude 18.42 (0.01) 18.40
RP magnitude 18.32 (0.02) 18.28
Pan g magnitude 18.39 (0.006)
Pan r magnitude 18.48 (0.006)
Pan i magnitude 18.63 (0.008)
Pan z magnitude 18.80 (0.01)
Pan y magnitude 18.88 (0.03)
E(B-V) 0.008

* 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.