SDSS J165637.91+402317.8

All names: Gaia EDR3 1352973075436115968, SDSS J165637.91+402317.8, Gaia DR2 1352973075436115968, SDSS J165637.91+402317.81, Gaia DR3 1352973075436115968

Parameter Unit Gaia EDR3 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 16 56 37.91 (0.6) 16 56 37.91 16 56 37.91 (0.8) 16 56 37.91 (0.6)
Declination 40 23 17.62 (0.7) 40 23 17.80 40 23 17.63 (2) 40 23 17.87 (0.7)
Spectral type DA DA DA DA
Effective temperature [K] 13617.0 9115.0 (193)
log(g) [cgs] 9.17 7.58 (0.3)
Mass [M] 1.263 0.414 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 1.4770
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] 3.48 (0.8) 3.65 (1) 3.48 (0.8)
Distance [pc] 287.12 (67) 273.76 (79) 287.12 (67)
Composition H
Proper motion (right ascension) [mas/yr] 4.121075336 (1) 5.331495991 (2) 4.121 (1)
Proper motion (declination) [mas/yr] -15.69287581 (1) -13.76153794 (2) -15.693 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.22 (0.1) 21.18 (0.1) 21.18 (0.1)
g magnitude 20.76 (0.03) 20.76 (0.03) 20.76 (0.03)
r magnitude 20.66 (0.04) 20.65 (0.04) 20.65 (0.04)
i magnitude 20.71 (0.05) 20.71 (0.05) 20.71 (0.05)
z magnitude 21.49 (0.4) 21.49 (0.9) 21.49 (0.9)
G magnitude 20.64 (0.1) 20.73 20.64 (0.01)
BP magnitude 20.67 (0.1) 20.51
RP magnitude 20.25 (0.2) 20.54
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.021

* 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.