LB 16

All names: LAMOST J124416.57+231410.2, TIC 263638925, Gaia DR3 3956176053739681664, SDSS J124416.58+231410.4, USNO-B1.0 1132-00220152, WIRED J124416.57+231410.3, 2MASS J12441658+2314097, Gaia EDR3 3956176053739681664, FAUST 3424, LAMOST J124416.57+231410.3, Gaia DR2 3956176053739681664, WD 1241+235, LB 16, PG 1241+235, SDSS J124416.57+231410.3, GALEX J124416.5+231410

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Koester et al. 2009 Liebert et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 44 16.58 (0.04) 12 44 16.57 12 44 16.58 (0.05) 12 44 16.58 12 44 16.57 (0.04) 12 44 16.37 12 44 16.58
Declination 23 14 10.30 (0.03) 23 14 10.37 23 14 10.31 (0.04) 23 14 10.30 23 14 10.41 (0.03) 23 14 11.40 23 14 10.40
Spectral type DA DA DA DA DA1.8 DA4 DA DA
Effective temperature [K] 23921.0 27541.0 (215) 27420.0 (424) 26982.0 (50) 26730.0 (408) 25908.0 (409) 28000.0 (47)
log(g) [cgs] 7.79 8.03 (0.04) 7.97 (0.05) 7.77 (0.008) 7.93 (0.05) 7.91 (0.02) 7.91 (0.02)
Mass [M] 0.524 0.66 (0.02) 0.62 (0.03) 0.6 (0.03) 0.586 (0.01) 0.596 (0.009)
log(Luminosity) [L] -1.04
Cooling age [Gyr] 0.0200 0.0186
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] 8.18 (0.06) 8.08 (0.07) 8.18 8.18 (0.06)
Distance [pc] 122.23 (0.8) 123.71 (1) 103.00 108.00 122.23 122.23 (0.8)
Composition H H
Proper motion (right ascension) [mas/yr] 16.1884056 (0.06) 16.29590964 (0.09) 16.188 (0.06)
Proper motion (declination) [mas/yr] -7.01258332 (0.06) -7.022545997 (0.06) -7.013 (0.06)
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.40
V magnitude 15.18 15.23 15.20
R magnitude 16.20
I magnitude
J magnitude 16.21 (0.09)
H magnitude 16.55 (0.06)
K magnitude 16.41 (0.04)
u magnitude 15.27 (0.004) 15.27 (0.004) 15.19 (0.02)
g magnitude 15.38 (0.003) 15.38 (0.003) 15.38 (0.03)
r magnitude 15.80 (0.004) 15.80 (0.004) 15.75 (0.05)
i magnitude 16.13 (0.004) 16.13 (0.004) 16.14 (0.01)
z magnitude 16.42 (0.008) 16.43 (0.008) 16.42 (0.03)
G magnitude 15.58 (0.002) 15.59 15.58 15.58 (0.003)
BP magnitude 15.46 (0.002) 15.41
RP magnitude 15.83 (0.003) 15.83
Pan g magnitude 15.40 (0.009)
Pan r magnitude 15.83 (0.006)
Pan i magnitude 16.14 (0.004)
Pan z magnitude 16.42 (0.004)
Pan y magnitude 16.60 (0.005)
E(B-V) 0.006

* 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.