Gaia DR2 934891926527276288

All names: SDSS J080240.57+495859.3, USNO-B1.0 1399-00194475, Gaia DR3 934891926527276288, WDJ080240.65+495859.51, LSPM J0802+4959, Gaia DR2 934891926527276288, Gaia EDR3 934891926527276288

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 08 02 40.35 (0.2) 08 02 40.36 08 02 40.35 08 02 40.65 (0.2) 08 02 40.36
Declination 49 58 58.76 (0.1) 49 58 58.78 49 58 58.76 49 58 59.52 (0.1) 49 58 58.78
Spectral type DA: DA
Effective temperature [K] 4852.0 4528.0 4856.0 (86)
log(g) [cgs] 7.79 7.55 7.77 (0.05)
Mass [M] 0.461 0.336 0.447 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 4.0850 3.2040
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 15.62 (0.2) 15.79 (0.3) 15.62 15.62 (0.2) 15.79 (0.3)
Distance [pc] 64.00 (0.8) 63.33 (1) 64.00 64.00 (0.8) 63.33 (1)
Composition
Proper motion (right ascension) [mas/yr] -176.8467984 (0.2) -176.8569612 (0.4) -176.847 (0.2) -176.8569612
Proper motion (declination) [mas/yr] -47.50761658 (0.1) -47.33489332 (0.3) -47.508 (0.1) -47.33489332
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.20
V magnitude
R magnitude 18.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.11 (0.09) 21.11 (0.09)
g magnitude 19.49 (0.01) 19.49 (0.01)
r magnitude 18.74 (0.01) 18.74 (0.01)
i magnitude 18.44 (0.01) 18.44 (0.01)
z magnitude 18.32 (0.03) 18.32 (0.03)
G magnitude 18.76 (0.03) 18.79 18.76 18.76 (0.004) 18.79
BP magnitude 19.29 (0.03) 19.30 19.30
RP magnitude 18.08 (0.02) 18.12 18.12
Pan g magnitude 19.38 (0.007)
Pan r magnitude 18.72 (0.008)
Pan i magnitude 18.44 (0.002)
Pan z magnitude 18.35 (0.009)
Pan y magnitude 18.29 (0.01)
E(B-V) 0.002

* 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.