GD 148

All names: uvby98 610060148, GEN# +6.10060148, WDJ123456.22+473733.37, TIC 75585375, Gaia DR3 1543723709905857792, SDSS J123456.25+473733.0, WD 1232+47, UCAC2 47737332, GCRV 21675, EGGR 186, GD 148, LSPM J1234+4737, NLTT 31183, LAMOST J123456.22+473733.3, Gaia DR2 1543723709905857792, PG 1232+479, WD 1232+479, GALEX J123456.2+473732, CHSS 2315, 2MASS J12345619+4737333, LAMOST J123456.31+473731.9, USNO-B1.0 1376-00280459, Gaia EDR3 1543723709905857792

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 34 56.37 (0.01) 12 34 56.37 (0.02) 12 34 56.37 12 34 56.22 (0.01) 12 34 56.37 12 34 55.97
Declination 47 37 31.20 (0.01) 47 37 31.27 (0.02) 47 37 31.20 47 37 33.37 (0.01) 47 37 31.27 47 37 40.80
Spectral type DA DA DA DA DA3.3 DA3
Effective temperature [K] 14783.0 15416.0 (157) 15070.0 (246) 14370.0 (235) 15837.0 (84)
log(g) [cgs] 7.95 7.94 (0.03) 7.95 (0.05) 7.82 (0.05) 8.02 (0.005)
Mass [M] 0.581 0.58 (0.02) 0.59 (0.03) 0.52 (0.02) 0.625 (0.004)
log(Luminosity) [L] -2.09
Cooling age [Gyr] 0.1894 0.2042
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 22.25 (0.02) 22.23 (0.04) 22.25 22.25 (0.02) 22.23 (0.04)
Distance [pc] 44.95 (0.05) 44.99 (0.08) 46.00 48.00 44.95 44.95 (0.05) 44.99 (0.08)
Composition H H
Proper motion (right ascension) [mas/yr] 94.06045585 (0.02) 93.89152474 (0.04) 94.06 (0.01) 93.89152474
Proper motion (declination) [mas/yr] -135.3416138 (0.02) -135.3873001 (0.05) -135.342 (0.02) -135.3873001
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.58
V magnitude 14.50
R magnitude 14.90
I magnitude
J magnitude 14.87 (0.04)
H magnitude 14.88 (0.08)
K magnitude 14.96 (0.1)
u magnitude 14.63 (0.003) 14.63 (0.003)
g magnitude 14.41 (0.003) 14.41 (0.003)
r magnitude 14.66 (0.003) 14.66 (0.003)
i magnitude 14.92 (0.003) 14.92 (0.003)
z magnitude 15.20 (0.005) 15.20 (0.005)
G magnitude 14.52 (0.0009) 14.53 14.52 14.52 (0.003) 14.53
BP magnitude 14.47 (0.0009) 14.46 14.46
RP magnitude 14.62 (0.0009) 14.62 14.62
Pan g magnitude 14.40 (0.002)
Pan r magnitude 14.67 (0.004)
Pan i magnitude 14.94 (0.004)
Pan z magnitude 15.18 (0.003)
Pan y magnitude 15.35 (0.004)
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.