SDSS J165652.90+331520.9

All names: WD 1655+333, SDSS J165652.89+331520.9, Gaia DR3 1313855784614610688, Gaia DR2 1313855784614610688, Gaia EDR3 1313855784614610688, SDSS J165652.90+331520.9, SDSS J165652.90+331520.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 56 52.92 (0.4) 16 56 52.90 16 56 52.92 (0.5) 16 56 52.91 (0.4) 16 56 52.91 16 56 52.61 16 56 52.90
Declination 33 15 20.83 (0.4) 33 15 20.99 33 15 20.84 (0.5) 33 15 20.95 (0.4) 33 15 20.97 33 15 17.64 33 15 20.95
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 14373.0 14889.0 (510) 14767.0 (584)
log(g) [cgs] 8.69 8.58 (0.2) 8.46 (0.2)
Mass [M] 1.04 0.885 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.6891
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] 2.34 (0.5) 3.05 (0.6) 2.34 (0.5)
Distance [pc] 427.84 (85) 327.55 (68) 427.84 (85)
Composition H
Proper motion (right ascension) [mas/yr] 9.489200239 (0.5) 7.222547014 (1) 9.489 (0.5) -26.6
Proper motion (declination) [mas/yr] -7.246900642 (0.6) -7.591625995 (1) -7.247 (0.6) -40.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.52 (0.06) 20.52 (0.06) 20.53 (0.07) 20.52 20.52 (0.07)
g magnitude 20.07 (0.02) 20.07 (0.02) 20.10 (0.02) 20.09 20.08 (0.02)
r magnitude 20.25 (0.02) 20.25 (0.03) 20.29 (0.03) 20.28 20.27 (0.03)
i magnitude 20.52 (0.05) 20.52 (0.05) 20.54 (0.04) 20.53 20.53 (0.04)
z magnitude 20.71 (0.2) 20.71 (0.2) 20.67 (0.2) 20.66 20.69 (0.2)
G magnitude 20.17 (0.07) 20.24 20.17 (0.006)
BP magnitude 20.16 (0.07) 20.32
RP magnitude 20.03 (0.1) 20.39
Pan g magnitude 20.10 (0.01)
Pan r magnitude 20.29 (0.02)
Pan i magnitude 20.55 (0.01)
Pan z magnitude 20.62 (0.08)
Pan y magnitude
E(B-V) 0.022

* 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.