WD 1608+009

All names: USNO-B1.0 0907-00260451, SDSS J161044.47+004650.5, SDSS J161044.47+004650.51, Gaia DR3 4411420562526459264, WD 1608+009, Gaia DR2 4411420562526459264, Gaia EDR3 4411420562526459264, SDSS J161044.46+004650.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Harris et al. 2003 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 16 10 44.38 (0.1) 16 10 44.47 16 10 44.39 (0.2) 16 10 44.38 16 10 44.46 (0.1) 16 10 43.90
Declination 00 46 50.35 (0.1) 00 46 50.53 00 46 50.36 (0.1) 00 46 50.35 00 46 50.55 (0.1) 00 46 45.12
Spectral type DC: DC: DB DC: DC DB WDDZ: DC
Effective temperature [K] 13142.0 9993.0 9258.0 9099.0 10873.0 (102) 8743.0 (225)
log(g) [cgs] 9.50 8.21 8.13 8.05 8.00 (0) 7.83 (0.05)
Mass [M] 1.356 0.71 0.675 0.609 0.483 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.8866 0.8554
log(H/He) <-6.547
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 7.91 (0.2) 8.16 (0.2) 7.91 7.91 (0.2)
Distance [pc] 126.47 (3) 122.52 (3) 126.47 126.48 (3)
Composition
Proper motion (right ascension) [mas/yr] -75.26093494 (0.2) -75.22857187 (0.3) -75.261 (0.2)
Proper motion (declination) [mas/yr] -12.39035811 (0.1) -12.07858917 (0.2) -12.39 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.40
V magnitude
R magnitude 17.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.27 (0.01) 18.27 (0.01) 18.29 18.27 (0.01) 18.29
g magnitude 18.09 (0.006) 18.09 (0.01) 18.10 18.09 (0.006) 18.10
r magnitude 18.09 (0.007) 18.09 (0.01) 18.12 18.09 (0.007) 18.12
i magnitude 18.22 (0.009) 18.22 (0.01) 18.24 18.22 (0.009) 18.24
z magnitude 18.37 (0.03) 18.37 (0.03) 18.37 18.37 (0.03) 18.38
G magnitude 18.05 (0.01) 18.08 18.05 18.05 (0.003)
BP magnitude 18.13 (0.01) 18.11
RP magnitude 17.92 (0.02) 17.91
Pan g magnitude 18.09 (0.006)
Pan r magnitude 18.13 (0.007)
Pan i magnitude 18.25 (0.005)
Pan z magnitude 18.36 (0.01)
Pan y magnitude 18.47 (0.02)
E(B-V) 0.060

* 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.