SDSS J224348.66+312239.7

All names: SDSS J224348.64+312239.7, Gaia DR3 1888920024008733184, Gaia DR2 1888920024008733184, SDSS J224348.62+312239.7, Gaia EDR3 1888920024008733184, SDSS J224348.66+312239.74, SDSS J224348.66+312239.7, GALEX J224348.6+312240

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Koester & Kepler 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 22 43 48.67 (0.2) 22 43 48.63 22 43 48.66 (0.2) 22 43 48.67 22 43 48.60 (0.2)
Declination 31 22 39.79 (0.2) 31 22 39.71 31 22 39.79 (0.2) 31 22 39.79 31 22 39.68 (0.2)
Spectral type DB DB DB DB DB
Effective temperature [K] 11237.0 11688.0 10961.0 12154.0 (309) 11171.0 (142) 10838.0 (480)
log(g) [cgs] 7.67 7.91 7.85 8.67 (0.2) 8.00 (0) 7.87 (0.1)
Mass [M] 0.412 0.533 0.499 0.994 (0.1) 0.507 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.4015
log(H/He) <-6.468 <-5.62
log(C/He)
log(Ca/He) <-10.38
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] 3.71 (0.2) 3.52 (0.3) 3.71 3.71 (0.2)
Distance [pc] 269.41 (18) 284.12 (27) 245.00 269.41 269.40 (18)
Composition He
Proper motion (right ascension) [mas/yr] 52.67792937 (0.2) 51.44255537 (0.6) 52.678 (0.2)
Proper motion (declination) [mas/yr] 6.784218382 (0.2) 6.819343479 (0.5) 6.784 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.07 (0.02) 19.08 (0.02) 19.07 (0.02)
g magnitude 19.01 (0.009) 19.01 (0.01) 19.01 (0.009)
r magnitude 19.17 (0.01) 19.17 (0.01) 19.17 (0.01)
i magnitude 19.32 (0.02) 19.32 (0.02) 19.31 (0.02)
z magnitude 19.51 (0.06) 19.49 (0.06) 19.49 (0.06)
G magnitude 19.06 (0.02) 19.11 19.06 19.06 (0.004)
BP magnitude 19.13 (0.02) 19.07
RP magnitude 18.98 (0.03) 19.04
Pan g magnitude 19.06 (0.008)
Pan r magnitude 19.17 (0.007)
Pan i magnitude 19.35 (0.009)
Pan z magnitude 19.56 (0.01)
Pan y magnitude 19.51 (0.08)
E(B-V) 0.042

* 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.