SDSS J102327.59+440050.3

All names: SDSS J102327.59+440050.4, GALEX J102327.6+440050, Gaia EDR3 806044110240772608, SDSS J102327.60+440050.4, WD 1020+442, Gaia DR2 806044105942559360, SDSS J102327.59+440050.3, Gaia DR3 806044110240772608

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 10 23 27.60 (1) 10 23 27.60 10 23 27.60 (1) 10 23 27.59 10 23 27.59 (1) 10 23 27.60 10 23 27.65 10 23 27.60
Declination 44 00 50.23 (1) 44 00 50.40 44 00 50.23 (2) 44 00 50.29 44 00 50.24 (2) 44 00 50.40 44 00 48.24 44 00 50.40
Spectral type DB+M DB+M DB+M DB:+M DB: dM DB+M
Effective temperature [K] 4801.0 17635.0 (123) 10120.0 (59) 7231.0 (127)
log(g) [cgs] 6.81 8.03 (0.07) 7.34 (0.4) 9.95 (0.06)
Mass [M] 0.118
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
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] 4.74 (2) 4.74 (2)
Distance [pc] 210.82 (100) 210.82 (100)
Composition He
Proper motion (right ascension) [mas/yr] 10.76676109 (3) 10.767 (3)
Proper motion (declination) [mas/yr] -0.555712747 (4) -0.556 (4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.43 (0.06) 20.41 20.41 (0.06) 20.41 (0.07) 20.41 20.39 (0.07)
g magnitude 20.54 (0.02) 20.50 20.50 (0.03) 20.50 (0.03) 20.50 20.49 (0.03)
r magnitude 20.64 (0.04) 20.63 20.64 (0.04) 20.63 (0.04) 20.63 20.64 (0.04)
i magnitude 20.17 (0.04) 20.17 20.17 (0.04) 20.17 (0.04) 20.17 20.17 (0.04)
z magnitude 19.63 (0.09) 19.65 19.65 (0.1) 19.65 (0.1) 19.65 19.63 (0.1)
G magnitude 20.74 (0.1) 20.72 20.74 (0.02)
BP magnitude 20.70 (0.1) 20.50
RP magnitude 19.87 (0.06) 19.70
Pan g magnitude 20.59 (0.02)
Pan r magnitude 20.61 (0.03)
Pan i magnitude 20.20 (0.01)
Pan z magnitude 19.74 (0.02)
Pan y magnitude 19.49 (0.03)
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.