SDSS J093944.18+094246.1

All names: SDSS J093944.19+094246.1, SDSS J093944.18+094246.1, Gaia DR3 588707525131257984, Gaia EDR3 588707525131257984, Gaia DR2 588707525131257984

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 39 44.19 (0.3) 09 39 44.18 09 39 44.19 (0.4) 09 39 44.18 (0.3) 09 39 44.18
Declination 09 42 46.14 (0.2) 09 42 46.18 09 42 46.14 (0.5) 09 42 46.18 (0.2) 09 42 46.12
Spectral type DC DC DC DC DC
Effective temperature [K] 9456.0 9742.0 11094.0 (361)
log(g) [cgs] 7.26 7.24 8.79 (0.6)
Mass [M] 0.277 0.254
log(Luminosity) [L]
Cooling age [Gyr] 0.3447 0.3310
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.18 (0.3) 2.49 (0.6) 3.18 (0.3)
Distance [pc] 314.27 (33) 400.82 (94) 314.27 (33)
Composition
Proper motion (right ascension) [mas/yr] 13.18464326 (0.4) 12.08756173 (0.9) 13.185 (0.4)
Proper motion (declination) [mas/yr] -2.807446335 (0.2) -0.891927219 (0.9) -2.807 (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 19.38 (0.03) 19.38 (0.03) 19.39 (0.03)
g magnitude 19.27 (0.01) 19.27 (0.01) 19.29 (0.01)
r magnitude 19.39 (0.02) 19.39 (0.02) 19.43 (0.02)
i magnitude 19.54 (0.03) 19.54 (0.03) 19.58 (0.03)
z magnitude 19.70 (0.1) 19.70 (0.1) 19.70 (0.1)
G magnitude 19.33 (0.04) 19.36 19.33 (0.004)
BP magnitude 19.38 (0.04) 19.37
RP magnitude 19.28 (0.05) 19.25
Pan g magnitude 19.36 (0.01)
Pan r magnitude 19.42 (0.01)
Pan i magnitude 19.57 (0.02)
Pan z magnitude 19.72 (0.03)
Pan y magnitude 19.67 (0.1)
E(B-V) 0.023

* 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.