Gaia DR2 1842241284349703040

All names: WDJ205042.36+233827.55, Gaia DR2 1842241284349703040, Gaia EDR3 1842241284349703040, Gaia DR3 1842241284349703040

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 20 50 42.29 (0.1) 20 50 42.30 20 50 42.29 20 50 42.36 (0.1) 20 50 42.30
Declination 23 38 29.09 (0.1) 23 38 29.04 23 38 29.09 23 38 27.55 (0.1) 23 38 29.04
Spectral type DA: DA
Effective temperature [K] 5297.0 4998.0 5192.0 (79)
log(g) [cgs] 8.36 8.19 8.29 (0.04)
Mass [M] 0.818 0.689 0.768 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 7.3660 6.7430
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 18.51 (0.2) 18.45 (0.3) 18.51 18.51 (0.2) 18.45 (0.3)
Distance [pc] 54.02 (0.6) 54.20 (0.8) 54.02 54.02 (0.6) 54.20 (0.8)
Composition
Proper motion (right ascension) [mas/yr] -52.07828288 (0.2) -52.08773935 (0.4) -52.078 (0.2) -52.08773935
Proper motion (declination) [mas/yr] 96.42789874 (0.2) 96.21270842 (0.4) 96.428 (0.2) 96.21270842
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 18.78 (0.03) 18.80 18.78 18.78 (0.003) 18.80
BP magnitude 19.23 (0.03) 19.21 19.21
RP magnitude 18.15 (0.02) 18.13 18.13
Pan g magnitude 19.28 (0.008)
Pan r magnitude 18.75 (0.006)
Pan i magnitude 18.53 (0.004)
Pan z magnitude 18.50 (0.02)
Pan y magnitude 18.45 (0.02)
E(B-V) 0.004

* 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.