Gaia DR2 1939842457643560320

All names: Gaia EDR3 1939842461947276800, Gaia DR3 1939842461947276800, WDJ235701.83+485420.95, Gaia DR2 1939842457643560320, WDJ23571.83+485420.95, GALEX J235701.7+485421

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 23 57 01.79 (0.1) 23 57 01.79 23 57 01.79 23 57 01.83 (0.1) 23 57 01.79
Declination 48 54 20.52 (0.1) 48 54 20.54 48 54 20.52 48 54 20.96 (0.1) 48 54 20.54
Spectral type DC D
Effective temperature [K] 6784.0 6539.0 5796.0 (177)
log(g) [cgs] 8.31 8.20 8.01 (0.04)
Mass [M] 0.789 0.701 0.576 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 3.1750 2.9670
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 11.74 (0.2) 11.46 (0.3) 11.74 11.74 (0.2) 11.46 (0.3)
Distance [pc] 85.21 (1) 87.29 (3) 85.21 85.21 (1) 87.29 (3)
Composition
Proper motion (right ascension) [mas/yr] -26.22535767 (0.2) -25.24624253 (0.5) -26.225 (0.2) -25.24624253
Proper motion (declination) [mas/yr] -27.3046873 (0.1) -27.04108628 (0.3) -27.305 (0.1) -27.04108628
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 18.68 (0.01) 18.72 18.68 18.68 (0.003) 18.72
BP magnitude 18.92 (0.01) 18.88 18.88
RP magnitude 18.33 (0.02) 18.30 18.30
Pan g magnitude 18.94 (0.01)
Pan r magnitude 18.68 (0.006)
Pan i magnitude 18.66 (0.005)
Pan z magnitude 18.71 (0.02)
Pan y magnitude 18.77 (0.02)
E(B-V) 0.009

* 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.