SDSS J105617.81+195507.0

All names: Gaia DR2 3985057127528995456, Gaia EDR3 3985057127528995456, Gaia DR3 3985057127528995456, GALEX J105617.7+195507, SDSS J105617.82+195507.0, SDSS J105617.81+195507.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 56 17.70 (0.2) 10 56 17.82 10 56 17.71 (0.3) 10 56 17.70 10 56 17.88 (0.2) 10 56 17.82
Declination 19 55 06.32 (0.2) 19 55 07.01 19 55 06.35 (0.3) 19 55 06.32 19 55 07.29 (0.2) 19 55 07.04
Spectral type DA DA DA DA DA
Effective temperature [K] 8692.0 8434.0 (358) 8884.0 (77)
log(g) [cgs] 7.81 7.67 (0.1) 8.24 (0.1)
Mass [M☉] 0.491 0.422 (0.07) 0.739 (0.08)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.6824
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 4.98 (0.2) 5.18 (0.4) 4.98 4.98 (0.2)
Distance [pc] 200.93 (10) 193.03 (14) 200.93 200.94 (10)
Composition H
Proper motion (right ascension) [mas/yr] -150.6319233 (0.2) -150.5763769 (0.5) -150.632 (0.2)
Proper motion (declination) [mas/yr] -60.59596594 (0.2) -60.4710669 (0.5) -60.596 (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 19.41 (0.03) 19.41 (0.03) 19.41 (0.03)
g magnitude 18.88 (0.009) 18.88 (0.009) 18.94 (0.03)
r magnitude 18.89 (0.01) 18.89 (0.01) 18.88 (0.02)
i magnitude 18.89 (0.01) 18.89 (0.01) 18.93 (0.02)
z magnitude 19.08 (0.05) 19.08 (0.05) 19.00 (0.05)
G magnitude 18.82 (0.02) 18.85 18.82 18.82 (0.004)
BP magnitude 18.99 (0.02) 18.95
RP magnitude 18.66 (0.03) 18.67
Pan g magnitude 18.87 (0.008)
Pan r magnitude 18.88 (0.008)
Pan i magnitude 18.98 (0.01)
Pan z magnitude 19.08 (0.02)
Pan y magnitude 19.13 (0.02)
E(B-V) 0.015

* 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.