SDSS J163702.78+365517.1

All names: SDSS J163702.78+365517.0, SDSS J163702.78+365517.1, Gaia DR3 1328352540484820480, Gaia DR2 1328352540484820480, Gaia EDR3 1328352540484820480, SDSS J163702.79+365517.10, SDSS J163702.79+365517.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 37 02.77 (0.05) 16 37 02.78 16 37 02.78 (0.07) 16 37 02.77 16 37 02.78 (0.05) 16 37 02.79
Declination 36 55 17.03 (0.06) 36 55 17.11 36 55 17.03 (0.08) 36 55 17.03 36 55 17.17 (0.06) 36 55 17.12
Spectral type DB DB DB DBAH: DB
Effective temperature [K] 14695.0 14063.0 14171.0 14279.0 (369) 15408.0 (85)
log(g) [cgs] 8.01 8.04 8.04 8.07 (0.03) 8.47 (0.05)
Mass [M] 0.597 0.615 0.615 0.631 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2555
log(H/He) -5.372
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 6.55 (0.06) 6.49 (0.09) 6.55 6.55 (0.06)
Distance [pc] 152.61 (1) 154.04 (2) 152.61 152.61 (1)
Composition He
Proper motion (right ascension) [mas/yr] -5.248502426 (0.06) -5.309649176 (0.1) -5.249 (0.06)
Proper motion (declination) [mas/yr] -8.449213871 (0.08) -8.634359887 (0.2) -8.449 (0.08)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.22 (0.009) 17.22 (0.009) 17.23 (0.02)
g magnitude 17.27 (0.005) 17.27 (0.005) 17.29 (0.04)
r magnitude 17.53 (0.006) 17.53 (0.006) 17.53 (0.02)
i magnitude 17.80 (0.008) 17.80 (0.008) 17.79 (0.01)
z magnitude 18.11 (0.02) 18.11 (0.02) 18.10 (0.02)
G magnitude 17.40 (0.008) 17.43 17.40 17.40 (0.003)
BP magnitude 17.37 (0.008) 17.33
RP magnitude 17.50 (0.02) 17.49
Pan g magnitude 17.30 (0.003)
Pan r magnitude 17.58 (0.004)
Pan i magnitude 17.80 (0.003)
Pan z magnitude 18.00 (0.006)
Pan y magnitude 18.18 (0.01)
E(B-V) 0.015

* 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.