SDSS J103127.92+444754.1

All names: SDSS J103127.92+444754.0, SDSS J103127.91+444754.0, GALEX J103127.8+444752, SDSS J103127.92+444754.1, Gaia DR2 830002812207609472, Gaia EDR3 830002812207609472, Gaia DR3 830002812207609472

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 10 31 27.88 (0.5) 10 31 27.92 10 31 27.88 (0.7) 10 31 27.93 (0.5) 10 31 27.92
Declination 44 47 53.68 (0.5) 44 47 54.06 44 47 53.69 (0.9) 44 47 54.11 (0.5) 44 47 54.05
Spectral type DC DC DC DC DC:
Effective temperature [K] 11480.0 10707.0 10213.0 (137)
log(g) [cgs] 9.52 9.40 9.12 (0.6)
Mass [M] 1.374 1.324
log(Luminosity) [L]
Cooling age [Gyr] 1.6340 1.6030
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.26 (0.9) 7.11 (1) 4.26 (0.9)
Distance [pc] 234.65 (49) 140.63 (28) 234.65 (49)
Composition
Proper motion (right ascension) [mas/yr] -28.90184923 (0.6) -26.36681954 (2) -28.902 (0.6)
Proper motion (declination) [mas/yr] -26.83487017 (0.6) -29.65187445 (2) -26.835 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.71 (0.06) 20.71 (0.06) 20.68 (0.06)
g magnitude 20.45 (0.02) 20.45 (0.02) 20.47 (0.04)
r magnitude 20.55 (0.03) 20.55 (0.03) 20.55 (0.04)
i magnitude 20.54 (0.05) 20.54 (0.05) 20.54 (0.05)
z magnitude 20.98 (0.2) 20.98 (0.2) 20.97 (1)
G magnitude 20.45 (0.09) 20.56 20.45 (0.007)
BP magnitude 20.67 (0.09) 20.73
RP magnitude 20.02 (0.1) 20.12
Pan g magnitude 20.47 (0.04)
Pan r magnitude 20.52 (0.01)
Pan i magnitude 20.63 (0.02)
Pan z magnitude 20.86 (0.06)
Pan y magnitude
E(B-V) 0.013

* 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.