SDSS J223858.01+010353.7

All names: Gaia DR3 2654620157812927616, SDSS J223858.01+010353.70, SDSS J223858.01+010353.7, WD 2236+008, Gaia EDR3 2654620157812927616, SDSS J223858.01+010353.8, SDSS J223858.00+010353.8, Gaia DR2 2654620157812927616, GALEX J223858.0+010353

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 22 38 58.01 (0.5) 22 38 58.00 22 38 58.01 (0.7) 22 38 58.01 (0.5) 22 38 58.00 22 38 57.38 22 38 58.01
Declination 01 03 53.84 (0.5) 01 03 53.84 01 03 53.84 (0.7) 01 03 53.86 (0.5) 01 03 53.82 01 03 50.40 01 03 53.79
Spectral type DB DB DB DB DB DB
Effective temperature [K] 17144.0 12468.0 11687.0 17314.0 (303) 17308.0 (452)
log(g) [cgs] 8.21 8.67 8.64 8.26 (0.2) 8.32 (0.2)
Mass [M] 0.722 1.015 0.994
log(Luminosity) [L]
Cooling age [Gyr] 1.2380
log(H/He) <-5.608
log(C/He)
log(Ca/He)
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] 3.00 (0.6) 3.98 (0.8) 3.00 (0.6)
Distance [pc] 333.13 (66) 251.29 (52) 333.13 (66)
Composition He
Proper motion (right ascension) [mas/yr] -1.544614481 (0.7) -1.298855541 (2) -1.545 (0.7) -4.5
Proper motion (declination) [mas/yr] -1.603590465 (0.7) -2.4124737 (1) -1.604 (0.7) 6.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.80 (0.03) 19.50 (0.04) 19.64 (0.04) 19.63 19.64 (0.04)
g magnitude 19.84 (0.01) 19.75 (0.01) 19.85 (0.02) 19.85 19.86 (0.02)
r magnitude 19.99 (0.02) 19.85 (0.02) 19.99 (0.02) 19.98 (0.02)
i magnitude 20.12 (0.03) 19.98 (0.04) 20.14 (0.04) 20.13 (0.04)
z magnitude 20.29 (0.1) 20.07 (0.1) 20.27 (0.2) 20.26 (0.2)
G magnitude 19.92 (0.08) 20.00 19.92 (0.007)
BP magnitude 19.83 (0.08) 19.81
RP magnitude 19.80 (0.1) 19.80
Pan g magnitude 19.82 (0.02)
Pan r magnitude 20.00 (0.02)
Pan i magnitude 20.24 (0.01)
Pan z magnitude 20.40 (0.02)
Pan y magnitude 19.92 (0.06)
E(B-V) 0.056

* 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.