SDSS J081726.28+254736.9

All names: WD 0814+259, SDSS J081726.28+254737.0, SDSS J081726.28+254736.9, SDSS J081726.27+254736.9, Gaia DR2 682468516628264192, Gaia DR3 682468516628264192, Gaia EDR3 682468516628264192, GALEX J081726.2+254737

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 17 26.29 (0.3) 08 17 26.28 08 17 26.29 (0.5) 08 17 26.28 (0.3) 08 17 26.28 08 17 25.61 08 17 26.28
Declination 25 47 36.67 (0.2) 25 47 36.97 25 47 36.69 (0.3) 25 47 37.04 (0.2) 25 47 36.97 25 47 34.08 25 47 36.97
Spectral type DA: DA DA: DA: DA: DA
Effective temperature [K] 9540.0 10926.0 (353) 10723.0 (331)
log(g) [cgs] 6.80 7.84 (0.5) 7.75 (0.6)
Mass [M] 0.179
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.65 (0.5) 1.54 (0.6) 1.65 (0.5)
Distance [pc] 607.23 (167) 647.74 (260) 607.24 (167)
Composition H
Proper motion (right ascension) [mas/yr] 4.660181192 (0.4) 3.76185324 (1) 4.66 (0.4) 2.2
Proper motion (declination) [mas/yr] -22.56383849 (0.3) -23.40726387 (0.6) -22.564 (0.3) -22.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.76 (0.03) 19.76 (0.03) 19.80 (0.04) 19.80 19.78 (0.03)
g magnitude 19.62 (0.01) 19.62 (0.01) 19.64 (0.02) 19.64 19.63 (0.02)
r magnitude 19.71 (0.02) 19.71 (0.02) 19.75 (0.02) 19.75 19.74 (0.02)
i magnitude 19.86 (0.03) 19.86 (0.03) 19.89 (0.03) 19.89 19.89 (0.03)
z magnitude 20.09 (0.1) 20.09 (0.1) 20.13 (0.1) 20.13 20.12 (0.1)
G magnitude 19.67 (0.05) 19.73 19.67 (0.005)
BP magnitude 19.78 (0.05) 19.64
RP magnitude 19.69 (0.09) 19.43
Pan g magnitude 19.66 (0.01)
Pan r magnitude 19.75 (0.008)
Pan i magnitude 19.89 (0.02)
Pan z magnitude 20.14 (0.09)
Pan y magnitude 20.04 (0.2)
E(B-V) 0.031

* 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.