SDSS J085657.87+023238.7

All names: Gaia DR2 577838204151313792, GALEX J085657.8+023239, SDSS J085657.87+023238.7, Gaia DR3 577838204151313792, SDSS J085657.86+023238.7, SDSS J085657.87+023238.72, Gaia EDR3 577838204151313792

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Gaia DR2 Kepler et al. 2015 Simbad
Right ascension 08 56 57.87 (9) 08 56 57.87 08 56 57.87 (29) 08 56 57.87 (9)
Declination 02 32 38.57 (4) 02 32 38.74 02 32 38.57 (6) 02 32 38.57 (4)
Spectral type DA DA
Effective temperature [K] 11423.0 (257)
log(g) [cgs] 8.15 (0.2)
Mass [M☉] 0.688 (0.1)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas]
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr]
Proper motion (declination) [mas/yr]
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.71 (0.2) 21.70 (0.1) 21.70 (0.1)
g magnitude 21.25 (0.05) 21.25 (0.05) 21.25 (0.05)
r magnitude 21.25 (0.07) 21.28 (0.06) 21.25 (0.07)
i magnitude 21.37 (0.09) 21.43 (0.09) 21.37 (0.09)
z magnitude 20.91 (0.2) 20.98 (0.2) 20.98 (0.2)
G magnitude 21.22 (0.2) 21.30 21.22 (0.03)
BP magnitude 20.72 (0.2)
RP magnitude 21.15 (0.3)
Pan g magnitude 21.14 (0.02)
Pan r magnitude 21.25 (0.05)
Pan i magnitude 21.41 (0.05)
Pan z magnitude 21.13 (0.2)
Pan y magnitude
E(B-V)

* 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.