Gaia DR2 4188761516507040640

All names: Gaia DR2 4188761516507040640, WDJ194945.99-125259.84, GALEX J194946.0-125259, Gaia DR3 4188761516507040640, Gaia EDR3 4188761516507040640

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 49 46.01 (0.1) 19 49 46.01 19 49 46.01 19 49 45.99 (0.1) 19 49 46.01
Declination -12 53 00.89 (0.07) -12 53 00.86 -12 53 00.89 -12 52 59.84 (0.07) -12 53 00.86
Spectral type DA DA
Effective temperature [K] 8407.0 8106.0 8599.0 (184)
log(g) [cgs] 8.31 8.22 8.36 (0.04)
Mass [M] 0.792 0.715 0.827 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.5620 1.5010
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.15 (0.1) 12.01 (0.2) 12.15 12.15 (0.1) 12.01 (0.2)
Distance [pc] 82.30 (1) 83.24 (1) 82.30 82.30 (1) 83.24 (1)
Composition
Proper motion (right ascension) [mas/yr] 19.95279611 (0.1) 20.04083858 (0.3) 19.953 (0.1) 20.04083858
Proper motion (declination) [mas/yr] -65.73409701 (0.08) -65.55629369 (0.2) -65.734 (0.08) -65.55629369
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 17.83 (0.01) 17.85 17.83 17.83 (0.003) 17.85
BP magnitude 17.96 (0.01) 17.93 17.93
RP magnitude 17.64 (0.01) 17.62 17.62
Pan g magnitude 17.93 (0.005)
Pan r magnitude 17.89 (0.003)
Pan i magnitude 17.95 (0.005)
Pan z magnitude 18.04 (0.009)
Pan y magnitude 18.15 (0.003)
E(B-V) 0.005

* 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.