WD 0149+143

All names: WDJ015221.55+143630.45, SDSS J015221.56+143630.4, NLTT 6259, SDSS J015221.55+143630.6, J0152+1436, SDSS J015221.55+143630.5, Gaia DR3 90076974709491968, GALEX J015221.5+143631, SDSS J015221.54+143630.4, Gaia DR2 90076974709491968, SDSS J015221.54+143630.5, WD 0149+143, Gaia EDR3 90076974709491968, LP 468-293

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism 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 01 52 21.67 (0.2) 01 52 21.55 01 52 21.66 (0.2) 01 52 21.67 01 52 21.55 (0.2) 01 52 21.66 01 52 21.56 01 52 20.78 01 52 21.54
Declination 14 36 31.59 (0.2) 14 36 30.57 14 36 31.55 (0.2) 14 36 31.59 14 36 30.46 (0.2) 14 36 31.55 14 36 30.45 14 36 28.80 14 36 30.49
Spectral type DC DC DC DC DA DC DA DC DC DC DA
Effective temperature [K] 6687.0 (43) 6692.0 (42) 7238.0 6964.0 7338.0 (218) 6704.0 (56) 6502.0 (51)
log(g) [cgs] 8.06 (0.02) 8.07 (0.03) 8.31 8.21 8.35 (0.05) 8.98 (0.03) 10.00 (0.01)
Mass [M] 0.614 (0.02) 0.615 (0.02) 0.792 0.708 0.816 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 2.0000 2.6310 2.4220
log(H/He) -3.2 -3.2
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] 11.20 (0.2) 11.16 (0.2) 11.16 (0.2) 11.20 11.20 (0.2) 11.16 (0.2)
Distance [pc] 89.29 (2) 89.61 (2) 89.63 (2) 89.29 89.29 (2) 89.63 (2)
Composition He
Proper motion (right ascension) [mas/yr] 110.3021345 (0.2) 110.3044873 (0.4) 110.302 (0.2) 110.304 119.3
Proper motion (declination) [mas/yr] 70.66342226 (0.2) 70.81441655 (0.4) 70.663 (0.2) 70.814 71.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 18.60
R magnitude
I magnitude
J magnitude 18.04 (0.05)
H magnitude 17.95 (0.1)
K magnitude 18.04 (0.2)
u magnitude 19.23 (0.02) 19.27 (0.02) 19.23 (0.02) 19.23 (0.02) 19.27 (0.03) 19.25 19.26 (0.03)
g magnitude 18.71 (0.008) 18.71 (0.008) 18.71 (0.008) 18.76 (0.01) 18.76 18.75 (0.01)
r magnitude 18.55 (0.009) 18.55 (0.009) 18.55 (0.009) 18.52 (0.03) 18.53 18.52 (0.03)
i magnitude 18.48 (0.01) 18.48 (0.01) 18.48 (0.01) 18.54 (0.03) 18.54 18.53 (0.03)
z magnitude 18.54 (0.03) 18.54 (0.03) 18.54 (0.03) 18.57 (0.04) 18.56 18.56 (0.04)
G magnitude 18.54 (0.03) 18.57 18.54 18.54 (0.003) 18.57
BP magnitude 18.70 (0.03) 18.71 18.71
RP magnitude 18.27 (0.03) 18.22 18.22
Pan g magnitude 18.70 (0.004) 18.70 (0.004)
Pan r magnitude 18.56 (0.004) 18.56 (0.004)
Pan i magnitude 18.55 (0.008) 18.55 (0.009)
Pan z magnitude 18.58 (0.007) 18.58 (0.007)
Pan y magnitude 18.66 (0.02) 18.66 (0.02)
E(B-V) 0.011

* 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.