SDSS J082552.72+244647.0

All names: SDSS J082552.72+244647.0, Gaia DR3 679485511519844096, SDSS J082552.73+244647.1, Gaia DR2 679485507222129280, Gaia EDR3 679485511519844096, SDSS J082552.72+244647.1, GALEX J082552.7+244647, SDSS J082552.71+244647.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 25 52.71 (0.2) 08 25 52.73 08 25 52.71 (0.2) 08 25 52.71 08 25 52.73 (0.2) 08 25 52.73
Declination 24 46 46.94 (0.1) 24 46 47.10 24 46 46.94 (0.1) 24 46 46.94 24 46 47.03 (0.1) 24 46 47.12
Spectral type DA DA DA DA DA
Effective temperature [K] 19913.0 21878.0 (1469) 22510.0 (201)
log(g) [cgs] 7.74 7.99 (0.09) 7.93 (0.03)
Mass [M] 0.491 0.624 (0.07) 0.593 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0425
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 2.87 (0.2) 2.55 (0.3) 2.87 2.87 (0.2)
Distance [pc] 348.69 (23) 391.91 (45) 348.69 348.69 (23)
Composition H
Proper motion (right ascension) [mas/yr] -17.89056562 (0.2) -18.42603606 (0.4) -17.891 (0.2)
Proper motion (declination) [mas/yr] -5.526771954 (0.1) -5.652746683 (0.3) -5.527 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.84 (0.06)
H magnitude
K magnitude
u magnitude 18.17 (0.01) 18.17 (0.01) 18.15 (0.02)
g magnitude 18.18 (0.006) 18.18 (0.006) 18.20 (0.02)
r magnitude 18.56 (0.008) 18.56 (0.008) 18.56 (0.02)
i magnitude 18.85 (0.01) 18.85 (0.01) 18.86 (0.02)
z magnitude 19.13 (0.05) 19.13 (0.05) 19.08 (0.05)
G magnitude 18.39 (0.01) 18.42 18.39 18.39 (0.003)
BP magnitude 18.32 (0.01) 18.27
RP magnitude 18.56 (0.03) 18.55
Pan g magnitude 18.22 (0.007)
Pan r magnitude 18.56 (0.006)
Pan i magnitude 18.88 (0.009)
Pan z magnitude 19.19 (0.04)
Pan y magnitude 19.31 (0.04)
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.