SDSS J100442.59+021702.9

All names: Gaia DR3 3836115117767020416, SDSS J100442.59+021702.9, Gaia EDR3 3836115117767020416, Gaia DR2 3836115117767020416, GALEX J100442.6+021702, SDSS J100442.59+021702.90, WD 1002+025.1, USNO-A2.0 0900-06590456

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 10 04 42.58 (0.4) 10 04 42.59 10 04 42.58 (0.7) 10 04 42.59 (0.4) 10 04 42.59 10 04 42.12 10 04 42.59
Declination 02 17 02.75 (0.4) 02 17 02.96 02 17 02.76 (0.7) 02 17 02.98 (0.4) 02 17 02.93 02 17 00.60 02 17 02.89
Spectral type DB DB DB_A: DB DB DB+MS
Effective temperature [K] 16288.0 14479.0 14960.0 17290.0 (291) 17027.0 (334)
log(g) [cgs] 7.81 8.07 8.16 8.07 (0.2) 8.12 (0.2)
Mass [M] 0.49 0.629 0.689 0.658 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.2679
log(H/He) -4.609
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] 2.26 (0.5) 2.27 (0.8) 2.26 (0.5)
Distance [pc] 443.06 (90) 441.28 (163) 443.07 (90)
Composition He
Proper motion (right ascension) [mas/yr] -16.74080467 (0.5) -17.73277632 (1) -16.741 (0.5) -4.2
Proper motion (declination) [mas/yr] -14.45467289 (0.4) -14.54713445 (1) -14.455 (0.4) -14.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.90 (0.3)
V magnitude
R magnitude 19.40 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.58 (0.03) 19.58 (0.03) 19.55 (0.04) 19.54 19.57 (0.04)
g magnitude 19.61 (0.01) 19.61 (0.01) 19.61 (0.02) 19.60 19.61 (0.02)
r magnitude 19.87 (0.02) 19.87 (0.02) 19.87 (0.03) 19.86 19.86 (0.02)
i magnitude 20.14 (0.04) 20.14 (0.04) 20.14 (0.04) 20.13 20.14 (0.04)
z magnitude 20.05 (0.1) 20.05 (0.1) 20.01 (0.1) 20.00 20.02 (0.1)
G magnitude 19.74 (0.07) 19.81 19.74 (0.006)
BP magnitude 19.65 (0.07) 19.54
RP magnitude 19.98 (0.1) 19.85
Pan g magnitude 19.63 (0.009)
Pan r magnitude 19.92 (0.007)
Pan i magnitude 20.14 (0.02)
Pan z magnitude 20.40 (0.04)
Pan y magnitude 20.44 (0.2)
E(B-V) 0.029

* 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.