SDSS J082852.54+084831.3

All names: SDSS J082852.53+084831.2, Gaia DR2 599256377127295616, Gaia DR3 599256377127295616, GALEX J082852.5+084831, Gaia EDR3 599256377127295616, SDSS J082852.54+084831.30, SDSS J082852.54+084831.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 28 52.53 (0.6) 08 28 52.53 08 28 52.53 (0.8) 08 28 52.54 (0.6) 08 28 52.54
Declination 08 48 31.29 (0.5) 08 48 31.26 08 48 31.29 (0.6) 08 48 31.34 (0.5) 08 48 31.33
Spectral type DB DB DB DB+MS
Effective temperature [K] 22424.0 15068.0 22009.0 (1634)
log(g) [cgs] 8.09 6.59 8.16 (0.2)
Mass [M] 0.653 0.169 0.691 (0.1)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) <-4.409
log(C/He)
log(Ca/He)
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] 1.23 (0.7) -0.59 (1) 1.23 (0.7)
Distance [pc] 814.48 (467) 814.46 (467)
Composition He
Proper motion (right ascension) [mas/yr] -10.67419473 (0.7) -11.51129224 (2) -10.674 (0.7)
Proper motion (declination) [mas/yr] -3.161799087 (0.6) -3.681873843 (1) -3.162 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.96 (0.03) 19.94 (0.04) 19.95 (0.04)
g magnitude 20.12 (0.02) 20.11 (0.02) 20.14 (0.02)
r magnitude 20.47 (0.03) 20.47 (0.03) 20.45 (0.03)
i magnitude 20.67 (0.04) 20.67 (0.04) 20.78 (0.05)
z magnitude 20.75 (0.1) 20.73 (0.1) 20.73 (0.1)
G magnitude 20.30 (0.07) 20.36 20.30 (0.007)
BP magnitude 20.20 (0.07) 20.24
RP magnitude 20.33 (0.1) 20.11
Pan g magnitude 20.16 (0.01)
Pan r magnitude 20.47 (0.01)
Pan i magnitude 20.74 (0.04)
Pan z magnitude 21.02 (0.2)
Pan y magnitude
E(B-V) 0.028

* 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.