SDSS J064813.95+382042.2

All names: Gaia EDR3 944363596430433152, Gaia DR3 944363596430433152, Gaia DR2 944363596430433152, SDSS J064813.94+382042.1, SDSS J064813.95+382042.20, SDSS J064813.95+382042.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 06 48 13.95 (0.4) 06 48 13.95 06 48 13.95 (0.5) 06 48 13.95 (0.4) 06 48 13.95
Declination 38 20 42.06 (0.3) 38 20 42.15 38 20 42.07 (0.5) 38 20 42.16 (0.3) 38 20 42.16
Spectral type DBAH: DBAH DBAH: DB
Effective temperature [K] 19250.0 18018.0 14028.0 18625.0 (232) 23269.0 (1977)
log(g) [cgs] 8.17 8.17 7.82 7.84 (0.09) 8.12 (0.1)
Mass [M] 0.697 0.697 0.491
log(Luminosity) [L]
Cooling age [Gyr] 0.1880
log(H/He) -4.371 <-4.2
log(C/He)
log(Ca/He) <-4.96
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] 2.12 (0.4) 2.02 (0.4) 2.12 (0.4)
Distance [pc] 470.87 (85) 495.41 (110) 601.00 470.88 (85)
Composition He
Proper motion (right ascension) [mas/yr] 0.359464879 (0.5) -0.928484797 (1) 0.359 (0.5)
Proper motion (declination) [mas/yr] -6.181990611 (0.4) -5.588436127 (0.9) -6.182 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.55 (0.03) 19.55 (0.03) 19.55 (0.03)
g magnitude 19.60 (0.01) 19.60 (0.01) 19.55 (0.01)
r magnitude 19.86 (0.02) 19.86 (0.02) 19.81 (0.02)
i magnitude 20.10 (0.03) 20.10 (0.03) 20.03 (0.03)
z magnitude 20.53 (0.1) 20.53 (0.1) 20.42 (0.1)
G magnitude 19.67 (0.05) 19.73 19.67 (0.006)
BP magnitude 19.64 (0.05) 19.57
RP magnitude 19.83 (0.09) 19.83
Pan g magnitude 19.55 (0.009)
Pan r magnitude 19.80 (0.007)
Pan i magnitude 20.07 (0.01)
Pan z magnitude 20.18 (0.06)
Pan y magnitude 20.03 (0.2)
E(B-V) 0.076

* 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.