SDSS J222348.52+231909.2

All names: SDSS J222348.52+231909.2, SDSS J222348.52+231909.25, J2223+2319, Gaia EDR3 1878189370339859328, WDJ222348.40+231909.37, SDSS J222348.45+231909.3, Gaia DR2 1878189370339859328, SDSS J222348.44+231909.3, GALEX J222348.4+231909, Gaia DR3 1878189370339859328

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 22 23 48.55 (0.07) 22 23 48.45 22 23 48.55 (0.09) 22 23 48.55 22 23 48.40 (0.07) 22 23 48.55
Declination 23 19 09.25 (0.1) 23 19 09.34 23 19 09.26 (0.1) 23 19 09.25 23 19 09.37 (0.1) 23 19 09.26
Spectral type DAH DAH DAH DAH DAH DA: DAH DAH
Effective temperature [K] 8724.0 (86) 8927.0 (85) 8720.0 (86) 8681.0 9124.0 (126) 8704.0 (137)
log(g) [cgs] 8.50 (0.02) 8.56 (0.02) 8.52 (0.02) 8.51 8.00 (1) 8.48 (0.03)
Mass [M] 0.916 (0.01) 0.958 (0.01) 0.93 (0.01) 0.925 0.906 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 2.4500 2.2890
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] 13.03 (0.1) 13.27 (0.2) 13.27 (0.2) 13.03 13.03 (0.1) 13.27 (0.2)
Distance [pc] 76.73 (0.7) 75.36 (0.9) 75.35 (0.9) 76.73 76.73 (0.7) 75.35 (0.9)
Composition H H H
Proper motion (right ascension) [mas/yr] 128.2077417 (0.1) 128.4707113 (0.3) 128.208 (0.1) 128.4707113
Proper motion (declination) [mas/yr] -7.047294235 (0.1) -7.072912736 (0.3) -7.047 (0.1) -7.072912736
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.63 (0.04)
H magnitude
K magnitude
u magnitude 18.26 (0.01) 18.27 (0.02) 18.28 (0.02) 18.27 (0.01) 18.27 (0.01)
g magnitude 17.92 (0.006) 17.95 (0.01) 17.92 (0.006) 17.93 (0.005)
r magnitude 17.91 (0.006) 17.90 (0.009) 17.90 (0.006) 17.91 (0.006)
i magnitude 17.97 (0.008) 17.96 (0.01) 17.96 (0.008) 17.95 (0.008)
z magnitude 18.19 (0.02) 18.18 (0.03) 18.16 (0.02) 18.07 (0.03)
G magnitude 17.84 (0.01) 17.86 17.84 17.84 (0.003) 17.86
BP magnitude 17.97 (0.01) 17.94 17.94
RP magnitude 17.65 (0.02) 17.66 17.66
Pan g magnitude 17.93 (0.005) 17.93 (0.005)
Pan r magnitude 17.90 (0.002) 17.90 (0.002)
Pan i magnitude 17.98 (0.007) 17.98 (0.007)
Pan z magnitude 18.09 (0.009) 18.09 (0.01)
Pan y magnitude 18.19 (0.02) 18.19 (0.01)
E(B-V) 0.013

* 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.