GALEX 2698194946140144483

All names: USNO-A2.0 1050-06489965, Gaia DR3 3976993863302213376, GALEX 2698194946140144483, SDSS J112329.85+180831.0, Gaia EDR3 3976993863302213376, Gaia DR2 3976993863302213376

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 11 23 29.84 (0.2) 11 23 29.85 11 23 29.84 (0.3) 11 23 29.86 (0.3) 11 23 29.85
Declination 18 08 31.13 (0.2) 18 08 31.01 18 08 31.12 (0.3) 18 08 30.92 (0.3) 18 08 31.01
Spectral type DC:DB:DC DC:DB:DC DC DC:DB:DC DB
Effective temperature [K] 10930.0 11156.0 11980.0 (293)
log(g) [cgs] 8.29 8.25 8.66 (0.3)
Mass [M] 0.786 0.739
log(Luminosity) [L]
Cooling age [Gyr] 0.7439 0.6852
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.88 (0.3) 4.93 (0.5) 4.93 (0.5)
Distance [pc] 257.67 (19) 203.00 (20) 203.00 (20)
Composition
Proper motion (right ascension) [mas/yr] -15.26074362 (0.3) -14.36224852 (0.6) -14.362 (0.6)
Proper motion (declination) [mas/yr] 13.51468092 (0.3) 12.92945451 (0.6) 12.929 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.40 (0.3)
V magnitude
R magnitude 18.70 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.89 (0.02) 18.89 (0.02) 18.85 (0.03)
g magnitude 18.81 (0.009) 18.81 (0.009) 18.83 (0.02)
r magnitude 18.99 (0.01) 18.99 (0.01) 18.99 (0.02)
i magnitude 19.16 (0.02) 19.16 (0.02) 19.17 (0.02)
z magnitude 19.36 (0.07) 19.36 (0.07) 19.35 (0.06)
G magnitude 18.89 (0.03) 18.92 18.92 (0.005)
BP magnitude 18.89 (0.03) 18.74
RP magnitude 18.93 (0.06) 18.93
Pan g magnitude 18.84 (0.008)
Pan r magnitude 19.00 (0.01)
Pan i magnitude 19.18 (0.008)
Pan z magnitude 19.35 (0.02)
Pan y magnitude 19.44 (0.03)
E(B-V) 0.017

* 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.