Gaia DR2 4478785058685647232

All names: Gaia EDR3 4478785058685647232, Gaia DR3 4478785058685647232, WDJ182010.82+090336.91, Gaia DR2 4478785058685647232

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 20 10.90 (0.1) 18 20 10.89 18 20 10.90 18 20 10.82 (0.1) 18 20 10.89
Declination 09 03 37.30 (0.1) 09 03 37.29 09 03 37.30 09 03 36.92 (0.1) 09 03 37.29
Spectral type DC D
Effective temperature [K] 7750.0 7450.0 7376.0 (190)
log(g) [cgs] 8.38 8.29 8.22 (0.04)
Mass [M] 0.839 0.759 0.713 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 2.4650 2.2980
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 12.33 (0.1) 12.30 (0.2) 12.33 12.33 (0.1) 12.30 (0.2)
Distance [pc] 81.11 (0.9) 81.31 (1) 81.11 81.11 (0.9) 81.31 (1)
Composition
Proper motion (right ascension) [mas/yr] 68.95824051 (0.2) 69.0154951 (0.3) 68.958 (0.2) 69.0154951
Proper motion (declination) [mas/yr] 23.94668422 (0.2) 24.38985243 (0.3) 23.947 (0.2) 24.38985243
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 18.17 (0.01) 18.19 18.17 18.17 (0.003) 18.19
BP magnitude 18.32 (0.01) 18.34 18.34
RP magnitude 17.90 (0.02) 17.92 17.92
Pan g magnitude 18.32 (0.008)
Pan r magnitude 18.22 (0.005)
Pan i magnitude 18.26 (0.007)
Pan z magnitude 18.32 (0.008)
Pan y magnitude 18.40 (0.01)
E(B-V) 0.011

* Constant surface field

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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.