GALEX J171741.7+092754

All names: SDSSJ171741.78+092754.4, GALEX J171741.7+092754, SDSS J171741.79+092754.4, SDSS J171741.78+092754.4, Gaia DR3 4491527990428166784, Gaia DR2 4491527990428166784

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 17 17 41.79 17 17 41.79 (0.02)
Declination 09 27 54.44 09 27 54.48 (0.02)
Spectral type sd sd+F/K
Effective temperature [K]
log(g) [cgs]
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.35 (0.05) 0.34 (0.03)
Distance [pc] 2869.44 (385) 2984.18 (306)
Composition
Proper motion (right ascension) [mas/yr] -2.211 (0.07) -2.114 (0.03)
Proper motion (declination) [mas/yr] -4.76 (0.07) -4.781 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 14.99 (0.04)
H magnitude 14.75 (0.06)
K magnitude 14.85 (0.1)
u magnitude 15.88 (0.005) 15.88 (0.005)
g magnitude 15.68 (0.003) 15.68 (0.003)
r magnitude 15.65 (0.004) 15.65 (0.004)
i magnitude 15.67 (0.004) 15.67 (0.004)
z magnitude 15.72 (0.006) 15.72 (0.006)
G magnitude 15.59 (0.0006) 15.58 (0.003)
BP magnitude 15.68 (0.006)
RP magnitude 15.33 (0.004)
Pan g magnitude 15.71 (0.002)
Pan r magnitude 15.67 (0.003)
Pan i magnitude 15.68 (0.004)
Pan z magnitude 15.73 (0.004)
Pan y magnitude 15.74 (0.003)
E(B-V) 0.140

* 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.