Gaia DR3 1817814980700437632

All names: Gaia DR2 1817814980700437632, GALEX J204443.5+212203, Gaia DR3 1817814980700437632

Parameter Unit Vincent et al. 2024 Simbad
Right ascension 20 44 43.53 20 44 43.52 (0.1)
Declination 21 22 03.17 21 22 03.20 (0.1)
Spectral type DA DA
Effective temperature [K] 22150.0 (1753)
log(g) [cgs] 7.90 (0.1)
Mass [M☉] 0.574 (0.08)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.50 2.50 (0.2)
Distance [pc] 399.34 399.35 (27)
Composition
Proper motion (right ascension) [mas/yr] 8.846 (0.2)
Proper motion (declination) [mas/yr] -2.281 (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
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.55 18.55 (0.003)
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V)

* Constant surface field

Special notes:

Spectra

Controls

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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.