SDSS J104054.47+112023.7

All names: SDSS J104054.47+112023.75, Gaia DR2 3870737570694968192, SDSS J104054.47+112023.7, SDSSJ104054.47+112023.7, GALEX J104054.5+112024, Gaia EDR3 3870737570694968192, SDSS J104054.46+112023.7, Gaia DR3 3870737570694968192

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Geier 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 10 40 54.48 (0.4) 10 40 54.47 10 40 54.47 10 40 54.48 (0.6) 10 40 54.47 (0.4)
Declination 11 20 23.74 (0.3) 11 20 23.75 11 20 23.70 11 20 23.74 (0.4) 11 20 23.81 (0.3)
Spectral type He-sdOB He-sdB He-sdB sdBHe
Effective temperature [K] 27531.0 46667.0 (43)
log(g) [cgs] 5.01 7.00 (0)
Mass [M] 0.053
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.12 (0.4) -0.18 (0.5) -0.18 (0.5) 0.12 (0.4)
Distance [pc] 8000.37 (25836) 8000.00 (25830)
Composition
Proper motion (right ascension) [mas/yr] 0.822263868 (0.4) 1.17 (1) 1.169697209 (1) 0.822 (0.4)
Proper motion (declination) [mas/yr] -4.135884969 (0.4) -4.632 (0.7) -4.632090768 (0.7) -4.136 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.54 (0.02) 18.54 (0.02) 18.54 (0.02) 18.54 (0.02)
g magnitude 18.82 (0.009) 18.82 (0.009) 18.83 (0.02) 18.82 (0.009)
r magnitude 19.33 (0.02) 19.33 (0.02) 19.32 (0.02) 19.33 (0.02)
i magnitude 19.69 (0.03) 19.70 (0.03) 19.69 (0.03) 19.70 (0.03)
z magnitude 19.96 (0.1) 19.96 (0.1) 19.95 (0.1) 19.90 (0.1)
G magnitude 19.09 (0.03) 19.14 (0.008) 19.14 19.09 (0.006)
BP magnitude 18.93 (0.03) 18.91 (0.03) 18.91
RP magnitude 19.38 (0.1) 19.07 (0.2) 19.07
Pan g magnitude 18.91 (0.01) 18.91 (0.01)
Pan r magnitude 19.34 (0.007) 19.34 (0.007)
Pan i magnitude 19.73 (0.02) 19.73 (0.02)
Pan z magnitude 20.03 (0.02) 20.03 (0.02)
Pan y magnitude 19.83 (0.1) 19.84 (0.1)
E(B-V) 0.025

* 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.