SDSS J161009.84+550211.5

All names: SDSS J161009.84+550211.5, Gaia DR3 1429244238549530624, SDSS J161009.85+550211.4, SDSS J161009.85+550211.46, SDSS J161009.85+550211.5, Gaia EDR3 1429244238549530624, Gaia DR2 1429244238549530624, GALEX J161009.8+550211

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) Gaia DR2 Stilism Kepler et al. 2016 Koester & Kepler 2015 Simbad Vincent et al. 2023
Right ascension 16 10 09.85 (0.2) 16 10 09.84 16 10 09.85 (0.3) 16 10 09.84 (0.2)
Declination 55 02 11.46 (0.2) 55 02 11.57 55 02 11.46 (0.3) 55 02 11.55 (0.2)
Spectral type DB DB DB DB+MS
Effective temperature [K] 32807.0 (841) 33430.0 28954.0 31246.0 (504) 32744.0 (461)
log(g) [cgs] 7.76 (0.09) 7.74 8.04 7.79 (0.06) 7.64 (0.07)
Mass [M] 0.51 (0.04) 0.494 0.635
log(Luminosity) [L] -0.60 (0.07)
Cooling age [Gyr] 0.0068 (0.0007)
log(H/He) <-3.687 <-3.0
log(C/He)
log(Ca/He) <-4.0
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] 1.76 (0.2) 1.72 (0.4) 1.76 (0.2)
Distance [pc] 568.96 (71) 579.79 (121) 859.00 568.96 (71)
Composition He
Proper motion (right ascension) [mas/yr] 2.239584155 (0.3) 4.245179491 (0.9) 2.24 (0.3)
Proper motion (declination) [mas/yr] -6.031381779 (0.3) -7.050095731 (0.7) -6.031 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.72 (0.02) 18.71 (0.02) 18.71 (0.02)
g magnitude 18.88 (0.009) 18.90 (0.02) 18.88 (0.009)
r magnitude 19.35 (0.01) 19.36 (0.02) 19.35 (0.01)
i magnitude 19.67 (0.02) 19.68 (0.02) 19.67 (0.02)
z magnitude 19.93 (0.08) 19.93 (0.07) 19.93 (0.08)
G magnitude 19.15 (0.03) 19.19 19.15 (0.004)
BP magnitude 19.06 (0.03) 18.96
RP magnitude 19.48 (0.06) 19.31
Pan g magnitude 18.97 (0.01)
Pan r magnitude 19.37 (0.008)
Pan i magnitude 19.73 (0.007)
Pan z magnitude 19.98 (0.02)
Pan y magnitude 19.71 (0.1)
E(B-V) 0.021

* 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.