SDSS J165513.16+333313.6

All names: Gaia DR2 1314629222325092224, SDSS J165513.16+333313.60, SDSS J165513.16+333313.6, Gaia DR3 1314629222325092224, GALEX J165513.1+333313, SDSS J165513.15+333313.6, Gaia EDR3 1314629222325092224

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 16 55 13.15 (0.2) 16 55 13.16 16 55 13.15 (0.2) 16 55 13.16 (0.2)
Declination 33 33 13.54 (0.2) 33 33 13.65 33 33 13.55 (0.3) 33 33 13.67 (0.2)
Spectral type DB DB DB DB
Effective temperature [K] 18434.0 18502.0 16564.0 18296.0 (177) 18384.0 (180)
log(g) [cgs] 8.15 7.83 7.71 7.84 (0.07) 7.87 (0.06)
Mass [M] 0.684 0.503 0.44 0.529 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.0894
log(H/He) -5.025 <-4.45
log(C/He)
log(Ca/He) <-5.32
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] 1.99 (0.2) 1.89 (0.3) 1.99 (0.2)
Distance [pc] 502.00 (53) 528.58 (78) 514.00 502.01 (53)
Composition He
Proper motion (right ascension) [mas/yr] -7.021325784 (0.2) -6.309551784 (0.5) -7.021 (0.2)
Proper motion (declination) [mas/yr] -8.074370023 (0.3) -7.629621655 (0.5) -8.074 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.96 (0.02) 18.96 (0.02) 18.96 (0.02)
g magnitude 19.06 (0.009) 19.06 (0.01) 19.06 (0.009)
r magnitude 19.39 (0.01) 19.39 (0.01) 19.39 (0.01)
i magnitude 19.63 (0.02) 19.63 (0.02) 19.64 (0.02)
z magnitude 19.89 (0.07) 19.89 (0.07) 19.89 (0.07)
G magnitude 19.22 (0.03) 19.27 19.22 (0.004)
BP magnitude 19.15 (0.03) 19.10
RP magnitude 19.46 (0.05) 19.29
Pan g magnitude 19.09 (0.005)
Pan r magnitude 19.42 (0.01)
Pan i magnitude 19.69 (0.009)
Pan z magnitude 19.91 (0.02)
Pan y magnitude 19.90 (0.05)
E(B-V) 0.023

* 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.