SDSS J161054.23+521137.6

All names: SDSS J161054.23+521137.7, LAMOST J161054.23+521137.7, SDSS J161054.23+521137.6, Gaia EDR3 1427748696577856512, Gaia DR2 1427748696577856512, Gaia DR3 1427748696577856512, GALEX J161054.2+521137, SDSS J161054.23+521137.70

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 10 54.22 (0.1) 16 10 54.23 16 10 54.22 (0.1) 16 10 54.22 16 10 54.23 (0.1) 16 10 54.23
Declination 52 11 37.70 (0.1) 52 11 37.63 52 11 37.70 (0.2) 52 11 37.70 52 11 37.61 (0.1) 52 11 37.71
Spectral type DB DB DB DBA DB
Effective temperature [K] 16659.0 18773.0 17414.0 16997.0 (68) 20106.0 (1923) 17337.0 (101)
log(g) [cgs] 7.97 8.19 8.12 8.06 (0.05) 8.27 (0.09) 8.18 (0.05)
Mass [M] 0.575 0.709 0.665 0.763 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.1531
log(H/He) -4.476 -4.33 (0.2)
log(C/He)
log(Ca/He) <-6.51
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] 3.20 (0.1) 3.21 (0.2) 3.20 3.20 (0.1)
Distance [pc] 312.74 (12) 311.60 (16) 306.00 312.74 312.74 (12)
Composition He
Proper motion (right ascension) [mas/yr] -6.160677707 (0.1) -6.159048199 (0.3) -6.161 (0.1)
Proper motion (declination) [mas/yr] 5.699260131 (0.2) 5.663413636 (0.3) 5.699 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.32 (0.01) 18.32 (0.01) 18.33 (0.03)
g magnitude 18.41 (0.007) 18.41 (0.007) 18.40 (0.02)
r magnitude 18.75 (0.01) 18.75 (0.01) 18.73 (0.02)
i magnitude 19.02 (0.01) 19.02 (0.01) 19.01 (0.03)
z magnitude 19.34 (0.07) 19.34 (0.07) 19.30 (0.07)
G magnitude 18.56 (0.01) 18.60 18.56 18.56 (0.003)
BP magnitude 18.50 (0.01) 18.46
RP magnitude 18.77 (0.04) 18.65
Pan g magnitude 18.45 (0.004)
Pan r magnitude 18.73 (0.009)
Pan i magnitude 18.99 (0.009)
Pan z magnitude 19.27 (0.02)
Pan y magnitude 19.50 (0.04)
E(B-V) 0.019

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.