LB 6931

All names: Gaia EDR3 1513281943779729280, KUV 12412+3046, CSO 162, LB 6931, Gaia DR2 1513281943779729280, SDSS J124337.73+302921.4, SDSS J124337.74+302921.4, GALEX J124337.7+302921, Gaia DR3 1513281943779729280

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 43 37.75 (0.09) 12 43 37.74 12 43 37.75 (0.1) 12 43 37.75 12 43 37.73 (0.09) 12 43 37.74
Declination 30 29 21.26 (0.08) 30 29 21.42 30 29 21.27 (0.09) 30 29 21.26 30 29 21.49 (0.08) 30 29 21.41
Spectral type DA DA DA DA DA
Effective temperature [K] 20066.0 27055.0 (1289) 24754.0 (182)
log(g) [cgs] 7.65 7.97 (0.06) 7.92 (0.02)
Mass [M] 0.452 0.624 (0.05) 0.593 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 0.0422
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] 3.03 (0.1) 3.07 (0.1) 3.03 3.03 (0.1)
Distance [pc] 330.23 (12) 326.06 (16) 330.23 330.23 (12)
Composition H
Proper motion (right ascension) [mas/yr] 18.03089391 (0.1) 18.1171142 (0.2) 18.031 (0.1)
Proper motion (declination) [mas/yr] -14.44571436 (0.1) -14.30433442 (0.2) -14.446 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude 17.00
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.56 (0.01) 17.56 (0.01) 17.57 (0.03)
g magnitude 17.66 (0.005) 17.66 (0.005) 17.65 (0.02)
r magnitude 18.04 (0.007) 18.04 (0.007) 18.04 (0.02)
i magnitude 18.34 (0.01) 18.34 (0.01) 18.33 (0.02)
z magnitude 18.66 (0.04) 18.66 (0.04) 18.64 (0.04)
G magnitude 17.82 (0.009) 17.83 17.82 17.82 (0.003)
BP magnitude 17.70 (0.009) 17.68
RP magnitude 18.04 (0.02) 18.06
Pan g magnitude 17.67 (0.007)
Pan r magnitude 18.02 (0.007)
Pan i magnitude 18.34 (0.004)
Pan z magnitude 18.62 (0.01)
Pan y magnitude 18.77 (0.02)
E(B-V) 0.012

* 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.