Gaia DR2 4589815258982518912

All names: WDJ18168.19+291837.11, GALEX J181608.2+291837, WDJ181608.19+291837.11, Gaia DR3 4589815258982518912, Gaia DR2 4589815258982518912, Gaia EDR3 4589815258982518912

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 18 16 08.21 (0.05) 18 16 08.21 18 16 08.21 18 16 08.19 (0.05) 18 16 08.21
Declination 29 18 37.39 (0.06) 29 18 37.38 29 18 37.39 29 18 37.12 (0.06) 29 18 37.38
Spectral type DA DA
Effective temperature [K] 9568.0 9453.0 9995.0 (144)
log(g) [cgs] 8.17 8.10 8.27 (0.02)
Mass [M] 0.704 0.639 0.77 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.8667 0.8359
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 10.31 (0.07) 10.27 (0.09) 10.31 10.31 (0.07) 10.27 (0.09)
Distance [pc] 97.01 (0.6) 97.34 (0.8) 97.01 97.01 (0.6) 97.34 (0.8)
Composition
Proper motion (right ascension) [mas/yr] 18.39492819 (0.07) 18.21637515 (0.1) 18.395 (0.07) 18.21637515
Proper motion (declination) [mas/yr] 16.90767231 (0.07) 16.99824104 (0.2) 16.908 (0.07) 16.99824104
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 17.51 (0.007) 17.53 17.51 17.51 (0.003) 17.53
BP magnitude 17.60 (0.007) 17.60 17.60
RP magnitude 17.45 (0.01) 17.42 17.42
Pan g magnitude 17.54 (0.006)
Pan r magnitude 17.59 (0.003)
Pan i magnitude 17.73 (0.004)
Pan z magnitude 17.85 (0.008)
Pan y magnitude 17.96 (0.02)
E(B-V) 0.026

* 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.