WD 1146-011

All names: Gaia EDR3 3794415245931016320, SDSS J114851.69-012612.7, WD 1146-011, Gaia DR3 3794415245931016320, SDSS J114851.68-012612.8, WDJ114851.69-012612.69, Gaia DR2 3794415245931016320, LBQS 1146-0109, SDSS J114851.68-012612.7, HE 1146-0109, J1148-0126

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Dufour et al. 2005 Liebert et al. 2003 Harris et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 48 51.61 (0.1) 11 48 51.69 11 48 51.69 11 48 51.61 (0.1) 11 48 51.61 11 48 51.69 (0.1) 11 48 51.61 11 48 51.69 11 48 51.67 11 48 51.68
Declination -01 26 14.83 (0.06) -01 26 12.71 -01 26 12.69 -01 26 14.76 (0.07) -01 26 14.83 -01 26 12.69 (0.06) -01 26 14.76 -01 26 12.71 -01 26 10.68 -01 26 12.78
Spectral type DQ DQ DQ DQ DQ DQ DQ CI DQ DQ hotDQ DQhot DQ DQ_CI hotDQ
Effective temperature [K] 9875.0 (62) 10632.0 (61) 9680.0 (222) 9174.0 9450.0 (120) 10000.0 9689.0 (107) 10980.0 (160) 11126.0 (221)
log(g) [cgs] 8.49 (0.01) 8.61 (0.01) 8.46 8.00 (0) 8.00 (0) 8.47 (0.02) 8.81 (0.2) 9.11 (0.2)
Mass [M] 0.897 (0.01) 0.972 (0.01) 0.8759 0.882 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.5800 1.4800
log(H/He)
log(C/He) -3.39 -2.72 -3.4811 (0.03) -3.73 (0.01) -3.25 (0.1)
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] 14.66 (0.1) 14.68 (0.1) 14.68 14.68 (0.2) 14.66 14.66 (0.1) 14.68 (0.2)
Distance [pc] 68.21 (0.6) 68.12 (0.7) 68.11 (0.7) 68.11 (0.7) 93.00 68.21 68.21 (0.6) 68.11 (0.7)
Composition He He He He He
Proper motion (right ascension) [mas/yr] -70.73105702 (0.1) -70.47863433 (0.3) -70.731 (0.1) -70.479 -70.0
Proper motion (declination) [mas/yr] -133.3780685 (0.08) -133.5739727 (0.1) -133.378 (0.08) -133.574 -126.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.56 (0.02)
H magnitude 17.48 (0.05)
K magnitude 17.52 (0.1)
u magnitude 17.38 (0.009) 17.36 (0.009) 17.38 17.38 (0.009) 17.38 (0.009) 17.39 (0.02) 17.38 17.38 (0.02)
g magnitude 17.37 (0.005) 17.38 17.37 (0.005) 17.37 (0.005) 17.38 (0.02) 17.38 17.37 (0.02)
r magnitude 17.43 (0.005) 17.45 17.43 (0.005) 17.43 (0.005) 17.45 (0.01) 17.45 17.46 (0.01)
i magnitude 17.60 (0.007) 17.58 17.60 (0.007) 17.60 (0.007) 17.57 (0.02) 17.58 17.59 (0.02)
z magnitude 17.80 (0.02) 17.83 17.80 (0.02) 17.80 (0.02) 17.82 (0.03) 17.83 17.81 (0.03)
G magnitude 17.37 (0.009) 17.41 17.37 17.37 (0.003) 17.41
BP magnitude 17.40 (0.009) 17.37 17.37
RP magnitude 17.33 (0.009) 17.32 17.32
Pan g magnitude 17.42 (0.006) 17.42 (0.008)
Pan r magnitude 17.46 (0.005) 17.46 (0.005)
Pan i magnitude 17.64 (0.004) 17.64 (0.004)
Pan z magnitude 17.84 (0.005) 17.84 (0.006)
Pan y magnitude 17.95 (0.01) 17.95 (0.02)
E(B-V) 0.002

* 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.