SDSS J083135.86+083124.0

All names: SDSS J083135.86+083124.1, Gaia DR2 599546923074316672, SDSS J083135.86+083124.0, WD 0828+086, Gaia EDR3 599546923074316672, Gaia DR3 599546923074316672, SDSS J083135.87+083124.1, GALEX J083135.9+083123

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 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 31 35.86 (0.7) 08 31 35.87 08 31 35.86 (1) 08 31 35.87 (0.7) 08 31 35.87 08 31 35.76 08 31 35.87
Declination 08 31 24.08 (0.5) 08 31 24.14 08 31 24.08 (0.9) 08 31 24.11 (0.5) 08 31 24.09 08 31 19.20 08 31 24.09
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 30834.0 (1069) 27132.0 30435.0 (845) 31150.0 (789)
log(g) [cgs] 7.98 (0.3) 9.19 7.82 (0.2) 7.91 (0.2)
Mass [M] 0.64 (0.1) 1.274 0.603 (0.09)
log(Luminosity) [L] -0.83 (0.2)
Cooling age [Gyr] 0.0083 (0.002) 0.2791
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] 2.75 (0.9) 2.88 (1) 2.75 (0.9)
Distance [pc] 364.20 (116) 347.57 (175) 364.19 (116)
Composition H H
Proper motion (right ascension) [mas/yr] -6.823871162 (0.8) -5.779430522 (2) -6.824 (0.8) -3.3
Proper motion (declination) [mas/yr] -1.906831526 (0.6) -3.319349382 (1) -1.907 (0.6) 7.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.72 (0.03) 19.73 (0.04) 19.75 (0.04) 19.75 19.73 (0.03)
g magnitude 19.96 (0.02) 19.95 (0.02) 19.98 (0.02) 19.97 19.96 (0.02)
r magnitude 20.42 (0.02) 20.40 (0.03) 20.45 (0.03) 20.44 20.43 (0.03)
i magnitude 20.76 (0.04) 20.75 (0.04) 20.81 (0.04) 20.80 20.78 (0.04)
z magnitude 20.88 (0.2) 20.80 (0.2) 20.80 (0.2) 20.80 20.78 (0.2)
G magnitude 20.18 (0.08) 20.27 20.18 (0.007)
BP magnitude 20.08 (0.08) 20.17
RP magnitude 20.26 (0.1) 20.38
Pan g magnitude 20.03 (0.02)
Pan r magnitude 20.46 (0.02)
Pan i magnitude 20.77 (0.02)
Pan z magnitude 20.96 (0.1)
Pan y magnitude
E(B-V) 0.022

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.