SDSS J233849.03+011138.7

All names: SDSS J233849.04+011138.9, WD 2336+009, SDSS J233849.04+011138.7, Gaia DR3 2646096468796256640, Gaia EDR3 2646096468796256640, SDSS J233849.05+011138.9, SDSS J233849.03+011138.7, GALEX J233849.1+011140, Gaia DR2 2646096468796256640, SDSS J233849.05+011138.90

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 23 38 49.06 (0.8) 23 38 49.04 23 38 49.06 (0.6) 23 38 49.05 (0.8) 23 38 49.04 23 38 48.65 23 38 49.05
Declination 01 11 38.68 (0.5) 01 11 38.79 01 11 38.68 (0.5) 01 11 38.87 (0.5) 01 11 38.79 01 11 37.32 01 11 38.87
Spectral type DB DB DB DB DB DB
Effective temperature [K] 23486.0 24568.0 18594.0 23729.0 (1899) 21752.0 (1540)
log(g) [cgs] 7.66 7.53 7.38 8.32 (0.2) 7.55 (0.2)
Mass [M] 0.44 0.395 0.326
log(Luminosity) [L]
Cooling age [Gyr] 0.0490
log(H/He) <-4.288
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] -0.36 (0.8) 0.91 (0.8) 0.91 (0.8)
Distance [pc] 1097.16 (959) 1097.21 (959)
Composition He
Proper motion (right ascension) [mas/yr] 9.525268514 (0.8) 9.122831659 (1) 9.525 (0.8) 5.6
Proper motion (declination) [mas/yr] -12.15745612 (0.6) -12.55142949 (1) -12.157 (0.6) -25.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.79 (0.04) 19.79 (0.04) 19.82 (0.05) 19.81 19.82 (0.05)
g magnitude 19.87 (0.02) 19.87 (0.02) 19.95 (0.03) 19.94 19.96 (0.02)
r magnitude 20.25 (0.03) 20.25 (0.03) 20.27 (0.03) 20.26 20.27 (0.03)
i magnitude 20.48 (0.05) 20.48 (0.05) 20.47 (0.05) 20.47 20.48 (0.05)
z magnitude 20.69 (0.3) 20.69 (0.3) 21.12 (0.3) 21.12 21.11 (0.3)
G magnitude 20.09 (0.08) 20.15 20.09 (0.007)
BP magnitude 20.14 (0.08) 20.03
RP magnitude 20.33 (0.2) 20.32
Pan g magnitude 19.95 (0.02)
Pan r magnitude 20.27 (0.02)
Pan i magnitude 20.58 (0.02)
Pan z magnitude 20.77 (0.07)
Pan y magnitude 20.32 (0.2)
E(B-V) 0.040

* 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.