SDSS J165431.23+305659.4

All names: SDSS J165431.24+305659.4, WD 1652+310, SDSS J165431.22+305659.4, Gaia EDR3 1312958858003769088, SDSS J165431.23+305659.4, Gaia DR2 1312958858003769088, Gaia DR3 1312958858003769088

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 54 31.22 (0.1) 16 54 31.23 16 54 31.22 (0.2) 16 54 31.22 16 54 31.23 (0.1) 16 54 31.24 16 54 31.32 16 54 31.24
Declination 30 56 59.40 (0.2) 30 56 59.45 30 56 59.40 (0.2) 30 56 59.40 30 56 59.43 (0.2) 30 56 59.43 30 56 55.68 30 56 59.44
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 7296.0 7700.0 (110) 7680.0 (196) 7958.0 (83) 7510.0 (72)
log(g) [cgs] 7.42 8.29 (0.2) 7.53 (0.06) 8.44 (0.2) 8.09 (0.1)
Mass [M] 0.313 0.78 (0.1) 0.357 (0.04) 0.645 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.7349 2.1380
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] 5.66 (0.2) 5.76 (0.3) 5.66 5.66 (0.2)
Distance [pc] 176.78 (6) 173.66 (8) 176.78 176.78 (6)
Composition H H
Proper motion (right ascension) [mas/yr] -5.364112467 (0.2) -6.160585713 (0.4) -5.364 (0.2) -2.5
Proper motion (declination) [mas/yr] -1.43255104 (0.2) -1.937196391 (0.4) -1.433 (0.2) 2.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.36 (0.02) 19.36 (0.02) 19.34 (0.03) 18.89 19.35 (0.03)
g magnitude 18.87 (0.009) 18.87 (0.009) 18.89 (0.02) 18.89 18.89 (0.02)
r magnitude 18.74 (0.009) 18.74 (0.009) 18.75 (0.02) 18.75 (0.02)
i magnitude 18.71 (0.01) 18.71 (0.01) 18.72 (0.02) 18.72 (0.02)
z magnitude 18.73 (0.03) 18.73 (0.03) 18.73 (0.03) 18.72 (0.03)
G magnitude 18.72 (0.02) 18.75 18.72 18.72 (0.003)
BP magnitude 18.90 (0.02) 18.82
RP magnitude 18.45 (0.02) 18.45
Pan g magnitude 18.87 (0.004)
Pan r magnitude 18.75 (0.004)
Pan i magnitude 18.74 (0.005)
Pan z magnitude 18.80 (0.01)
Pan y magnitude 18.84 (0.02)
E(B-V) 0.018

* 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.