SDSS J084028.85+501237.9

All names: Gaia DR3 1027400608640909056, Gaia EDR3 1027400982302227456, SDSS J084028.85+501237.9, Gaia DR2 1027400608640909056, LAMOST J084028.85+501238.2, Gaia DR3 1027400982302227456, GALEX J084028.8+501237

Parameter Unit Gaia EDR3 Stilism Vincent et al. 2024 Simbad
Right ascension 08 40 28.50 (0.2) 08 40 28.50 08 40 28.86 (0.04)
Declination 50 13 56.65 (0.2) 50 13 56.65 50 12 37.89 (0.04)
Spectral type DA D+dM2
Effective temperature [K] 11572.0 (642)
log(g) [cgs] 8.59 (0.07)
Mass [M☉] 0.976 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 6.07 (0.2) 6.07 3.47 (0.05)
Distance [pc] 164.71 (6) 164.71 288.27 (4)
Composition
Proper motion (right ascension) [mas/yr] -15.377 (0.2) 1.174 (0.05)
Proper motion (declination) [mas/yr] -69.475 (0.2) -0.06 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.25 (0.02)
g magnitude 17.73 (0.005)
r magnitude 16.46 (0.004)
i magnitude 15.59 (0.004)
z magnitude 15.09 (0.005)
G magnitude 18.80 (0.004) 18.80 16.20 (0.003)
BP magnitude 18.86 (0.03)
RP magnitude 18.81 (0.04)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.015

* 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.