SDSS J064828.76+840340.9

All names: Gaia DR3 1149683305424619520, SDSS J064828.77+840340.8, SDSS J064828.76+840340.9, Gaia EDR3 1149683305424619520, SDSS J064828.76+840340.8, Gaia DR2 1149683305424619520, GALEX J064827.7+840340

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 06 48 28.73 (0.2) 06 48 28.78 06 48 28.73 (0.3) 06 48 28.82 (0.2) 06 48 28.76
Declination 84 03 40.51 (0.2) 84 03 40.83 84 03 40.53 (0.4) 84 03 41.09 (0.2) 84 03 40.87
Spectral type DAH DAH DAH DAH DAH
Effective temperature [K] 13236.2 (501) 15654.0 17290.0 (320)
log(g) [cgs] 8.73 (0.9) 8.88 9.24 (0.07)
Mass [M] 1.0629466390803155 (0.9) 1.142
log(Luminosity) [L]
Cooling age [Gyr] 0.8430
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] 3.97 (0.3) 3.96 (0.4) 3.97 (0.3)
Distance [pc] 252.09 (18) 252.41 (27) 252.09 (18)
Composition H
Proper motion (right ascension) [mas/yr] -8.911459104 (0.3) -8.621074581 (0.6) -8.911 (0.3)
Proper motion (declination) [mas/yr] -36.10925623 (0.3) -36.34484117 (0.6) -36.109 (0.3)
Variability
Magnetic yes
Bd [MG] 3.700368094132781
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.97 (0.06) 19.97 (0.06) 19.99 (0.06)
g magnitude 19.75 (0.02) 19.75 (0.01) 19.75 (0.02)
r magnitude 19.88 (0.02) 19.88 (0.02) 19.87 (0.02)
i magnitude 20.07 (0.04) 20.07 (0.04) 20.08 (0.04)
z magnitude 20.52 (0.2) 20.52 (0.2) 20.50 (0.2)
G magnitude 19.79 (0.05) 19.84 19.79 (0.005)
BP magnitude 19.90 (0.05) 19.89
RP magnitude 19.81 (0.06) 19.94
Pan g magnitude 19.76 (0.02)
Pan r magnitude 19.94 (0.02)
Pan i magnitude 20.04 (0.04)
Pan z magnitude 20.04 (0.07)
Pan y magnitude
E(B-V) 0.017

* 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.