SDSS J104504.99+525443.3

All names: SDSS J104504.98+525443.2, Gaia DR3 849175610638319616, SDSS J104504.99+525443.30, GALEX J104504.9+525443, Gaia DR2 849175610638319616, Gaia EDR3 849175610638319616, J1045+5254, SDSS J104504.99+525443.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Coutu et al. 2019 Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 45 04.98 (0.4) 10 45 04.98 10 45 04.99 10 45 04.98 (0.4) 10 45 04.99 (0.4) 10 45 04.99
Declination 52 54 43.35 (0.5) 52 54 43.26 52 54 43.29 52 54 43.35 (1) 52 54 43.26 (0.5) 52 54 43.26
Spectral type DBZ DBZ DBZ DZ
Effective temperature [K] 16500.0 10835.0 10990.0 (641) 12165.0 (526)
log(g) [cgs] 9.52 7.19 7.30 7.91 (0.4)
Mass [M] 1.365 0.247 0.2745
log(Luminosity) [L]
Cooling age [Gyr] 0.2480
log(H/He) -4.283 <-6.1959
log(C/He)
log(Ca/He) -8.8886 (0.5)
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] 1.62 (0.6) 1.46 1.46 (1) 1.62 (0.6)
Distance [pc] 616.77 (242) 684.94 (464) 684.94 (464) 616.75 (242)
Composition He
Proper motion (right ascension) [mas/yr] -6.531844811 (0.5) -6.056591772 (1) -6.532 (0.5)
Proper motion (declination) [mas/yr] 5.63682502 (0.7) 3.718945528 (2) 5.637 (0.7)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.30 (0.05) 20.30 (0.06) 20.32 (0.06)
g magnitude 20.18 (0.02) 20.18 (0.02) 20.19 (0.03)
r magnitude 20.31 (0.02) 20.31 (0.03) 20.36 (0.03)
i magnitude 20.52 (0.04) 20.52 (0.04) 20.51 (0.05)
z magnitude 20.40 (0.2) 20.41 (0.2) 20.45 (0.2)
G magnitude 20.25 (0.08) 20.31 20.25 (0.006)
BP magnitude 20.33 (0.08) 20.18
RP magnitude 20.12 (0.1) 20.14
Pan g magnitude 20.22 (0.02)
Pan r magnitude 20.37 (0.01)
Pan i magnitude 20.57 (0.02)
Pan z magnitude 20.56 (0.09)
Pan y magnitude
E(B-V) 0.020

* 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.