SDSS J090244.75+100459.7

All names: Gaia EDR3 591517773772424576, SDSS J090244.75+100459.6, Gaia DR2 591517773772424576, SDSS J090244.75+100459.7, SDSS J090244.75+100459.70, Gaia DR3 591517773772424576

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 SDSS DR14 MWDD H Gaia DR2 Hollands et al. 2017 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 09 02 44.72 (0.8) 09 02 44.75 09 02 44.75 09 02 44.72 (1) 09 02 44.76 (0.8)
Declination 10 04 59.34 (0.5) 10 04 59.68 10 04 59.68 10 04 59.35 (0.9) 10 04 59.74 (0.5)
Spectral type DZ DZ DZ DZ DZ
Effective temperature [K] 7521.0 7250.0 (250) 6762.0 (77)
log(g) [cgs] 7.42 8.00 (0)
Mass [M] 0.317
log(Luminosity) [L]
Cooling age [Gyr] 0.6880 1.8000
log(H/He)
log(C/He)
log(Ca/He) -8.25 -9.008 (0.09)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He) -7.29
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) -8.19
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.41 (1) 2.33 (1) 3.41 (1)
Distance [pc] 293.65 (84) 428.75 (230) 290.00 (40) 293.65 (84)
Composition He He He
Proper motion (right ascension) [mas/yr] -31.48246284 (1) -31.66862259 (2) -31.482 (1)
Proper motion (declination) [mas/yr] -25.42299 (0.7) -27.38644482 (2) -25.423 (0.7)
Variability
Magnetic yes
Bd [MG] 1.92 (0.05)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.33 (0.09) 21.32 (0.09) 21.34 (0.09) 21.33 (0.09) 21.33 (0.09)
g magnitude 20.70 (0.02) 20.69 (0.02) 20.70 (0.03) 20.70 (0.03) 20.70 (0.03)
r magnitude 20.60 (0.03) 20.61 (0.03) 20.62 (0.03) 20.62 (0.03) 20.62 (0.03)
i magnitude 20.63 (0.04) 20.63 (0.04) 20.65 (0.05) 20.65 (0.05) 20.65 (0.05)
z magnitude 20.68 (0.2) 20.69 (0.2) 20.65 (0.2) 20.65 (0.1) 20.65 (0.1)
G magnitude 20.58 (0.1) 20.66 20.58 (0.009)
BP magnitude 20.85 (0.1) 20.64
RP magnitude 20.43 (0.1) 20.56
Pan g magnitude 20.66 (0.02)
Pan r magnitude 20.59 (0.03)
Pan i magnitude 20.66 (0.04)
Pan z magnitude 20.64 (0.05)
Pan y magnitude
E(B-V) 0.023

* 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.