WD J1617+1620

All names: Gaia DR3 4465269178854732160, SDSS J161717.05+162022.4, Gaia EDR3 4465269178854732160, SDSS J161717.04+162022.4, Gaia DR2 4465269178854732160

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Brinkworth et al. 2012 Vincent et al. 2024 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 17 17.07 (0.06) 16 17 17.05 16 17 17.07 (0.07) 16 17 17.07 16 17 17.05
Declination 16 20 21.87 (0.05) 16 20 22.37 16 20 21.89 (0.06) 16 20 21.87 16 20 22.37
Spectral type DA DA DA DA
Effective temperature [K] 12462.0 13432.0 12073.0 (199) 14806.0 (78)
log(g) [cgs] 8.01 8.00 7.98 (0.02) 8.07 (0.01)
Mass [M] 0.61 0.595 (0.01) 0.649 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.3400
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] 7.95 (0.07) 7.92 (0.1) 7.95
Distance [pc] 125.74 (1) 126.22 (2) 122.00 125.74
Composition H H
Proper motion (right ascension) [mas/yr] 29.42492737 (0.07) 29.2816039 (0.1)
Proper motion (declination) [mas/yr] -42.01530793 (0.06) -42.27892276 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk) yes
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.39 (0.01) 17.41 (0.02)
g magnitude 17.03 (0.004) 17.04 (0.01)
r magnitude 17.24 (0.005) 17.26 (0.01)
i magnitude 17.48 (0.006) 17.48 (0.01)
z magnitude 17.70 (0.02) 17.70 (0.02)
G magnitude 17.14 (0.005) 17.16 17.14
BP magnitude 17.15 (0.005) 17.13
RP magnitude 17.20 (0.009) 17.21
Pan g magnitude 17.05 (0.007)
Pan r magnitude 17.26 (0.003)
Pan i magnitude 17.50 (0.003)
Pan z magnitude 17.71 (0.004)
Pan y magnitude 17.85 (0.02)
E(B-V) 0.016

* 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.