SDSS J163824.65+471719.0

All names: Gaia EDR3 1407323657479946112, SDSS J163824.66+471718.9, Gaia DR2 1407323657479946112, GALEX J163824.7+471719, Gaia DR3 1407323657479946112, SDSS J163824.65+471719.0

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Koester & Kepler 2015 Simbad Vincent et al. 2023
Right ascension 16 38 24.64 (0.2) 16 38 24.64 (0.2) 16 38 24.66 (0.2)
Declination 47 17 19.11 (0.2) 47 17 19.10 (0.3) 47 17 18.87 (0.2)
Spectral type DB DB+MS
Effective temperature [K] 15772.0 (130)
log(g) [cgs] 8.23 (0.09)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He) <-5.16
log(C/He)
log(Ca/He) <-6.83
log(Ca/H)
Parallax [mas] 2.71 (0.2) 2.95 (0.3) 2.71 (0.2)
Distance [pc] 368.65 (25) 338.50 (33) 321.00 368.65 (25)
Composition
Proper motion (right ascension) [mas/yr] -12.34536479 (0.2) -12.973 (0.4) -12.345 (0.2)
Proper motion (declination) [mas/yr] 14.68318131 (0.3) 13.659 (0.6) 14.683 (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 18.91 (0.02)
g magnitude 19.01 (0.009)
r magnitude 19.30 (0.01)
i magnitude 19.50 (0.02)
z magnitude 19.70 (0.08)
G magnitude 19.14 (0.03) 19.18 19.14 (0.004)
BP magnitude 19.08 (0.03) 19.08
RP magnitude 19.21 (0.05) 19.22
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.020

* 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.