HS 1747+6924

All names: HS1747+6924, FBS B 914, FBS 1747+694, Gaia EDR3 1637761847049851392, 2MASS J17470481+6923167, HS 1747+6924, GALEX J174704.8+692316, Gaia DR2 1637761847049851392, Gaia DR3 1637761847049851392, TIC 233211303

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 17 47 04.84 (0.03) 17 47 04.84 17 47 04.83 (0.03)
Declination 69 23 16.61 (0.03) 69 23 17.58 69 23 16.82 (0.03)
Spectral type sdB sdB
Effective temperature [K] 27500.0 (1200)
log(g) [cgs] 5.35 (0.2)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.65 (0.03) 0.55 (0.05) 0.65 (0.03)
Distance [pc] 1542.50 (74) 1811.59 (168) 1542.50 (74)
Composition
Proper motion (right ascension) [mas/yr] 2.294 (0.04) 2.161 (0.08) 2.294 (0.04)
Proper motion (declination) [mas/yr] -13.219 (0.04) -13.167 (0.1) -13.219 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.81 (0.07) 15.81 (0.07)
H magnitude 15.87 (0.2) 15.87 (0.2)
K magnitude 17.00
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.23 (0.003) 15.25 (0.0007) 15.23 (0.003)
BP magnitude 15.10 (0.004) 15.06 (0.009)
RP magnitude 15.49 (0.005) 15.48 (0.002)
Pan g magnitude 15.09 (0.003)
Pan r magnitude 15.47 (0.002)
Pan i magnitude 15.82 (0.003)
Pan z magnitude 16.10 (0.004)
Pan y magnitude 16.28 (0.004)
E(B-V) 0.031

* 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.