SDSS J085050.43+154720.6

All names: SDSS J085050.43+154720.8, SDSS J085050.43+154720.68, Gaia EDR3 609902570261469312, GALEX J085050.3+154723, SDSS J085050.43+154720.6, Gaia DR3 609902570261469312, Gaia DR2 609902570261469312

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 08 50 50.43 (0.2) 08 50 50.43 08 50 50.43 (0.3) 08 50 50.43 08 50 50.44 (0.2)
Declination 15 47 20.67 (0.1) 15 47 20.86 15 47 20.68 (0.2) 15 47 20.67 15 47 20.99 (0.1)
Spectral type DC DC DC DC DC DC
Effective temperature [K] 10563.0 11068.0 9559.0 (440) 13575.0 (913)
log(g) [cgs] 7.87 7.86 7.93 (1) 8.06 (0.1)
Mass [M] 0.529 0.504 0.624 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.4458 0.3955
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.12 (0.3) 3.38 (0.3) 3.12 3.12 (0.3)
Distance [pc] 320.21 (28) 296.12 (30) 320.21 320.20 (28)
Composition
Proper motion (right ascension) [mas/yr] -11.71596416 (0.3) -11.90958061 (0.6) -11.716 (0.3)
Proper motion (declination) [mas/yr] -20.44052111 (0.2) -20.32393813 (0.4) -20.441 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.97 (0.02) 18.97 (0.02) 18.97 (0.02)
g magnitude 19.02 (0.01) 19.02 (0.01) 19.02 (0.01)
r magnitude 19.27 (0.01) 19.27 (0.01) 19.27 (0.01)
i magnitude 19.46 (0.02) 19.46 (0.02) 19.46 (0.02)
z magnitude 19.66 (0.1) 19.66 (0.1) 19.66 (0.1)
G magnitude 19.15 (0.03) 19.21 19.15 19.15 (0.004)
BP magnitude 19.09 (0.03) 19.03
RP magnitude 19.22 (0.04) 19.12
Pan g magnitude 19.10 (0.005)
Pan r magnitude 19.29 (0.008)
Pan i magnitude 19.49 (0.006)
Pan z magnitude 19.70 (0.01)
Pan y magnitude 19.59 (0.001)
E(B-V) 0.021

* 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.