Gaia DR2 2098419251579450880

All names: TIC 157849707, WDJ184059.33+395001.49, WDJ184059.33+395001.50, Gaia DR3 2098419251579450880, SDSS J184059.34+395001.6, Gaia DR2 2098419251579450880, Gaia EDR3 2098419251579450880, 2MASS J18405933+3950016

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 40 59.35 (0.03) 18 40 59.35 18 40 59.35 18 40 59.33 (0.03) 18 40 59.35
Declination 39 50 01.58 (0.04) 39 50 01.58 39 50 01.58 39 50 01.50 (0.04) 39 50 01.58
Spectral type DA DA
Effective temperature [K] 12268.0 13223.0 13613.0 (100)
log(g) [cgs] 7.79 7.85 7.90 (0.007)
Mass [M] 0.492 0.505 0.551 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.2681 0.2357
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 15.58 (0.04) 15.55 (0.05) 15.58 15.58 (0.04) 15.55 (0.05)
Distance [pc] 64.17 (0.2) 64.32 (0.2) 64.17 64.17 (0.2) 64.32 (0.2)
Composition
Proper motion (right ascension) [mas/yr] 13.81523339 (0.04) 13.96845208 (0.09) 13.815 (0.04) 13.96845208
Proper motion (declination) [mas/yr] 5.103831811 (0.05) 5.408811217 (0.1) 5.104 (0.05) 5.408811217
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 15.63 (0.06)
H magnitude 15.80 (0.1)
K magnitude
u magnitude 15.63 (0.01) 15.59 (0.005)
g magnitude 15.30 (0.008) 15.28 (0.004)
r magnitude 15.55 (0.009) 15.51 (0.004)
i magnitude 15.73 (0.008) 15.73 (0.004)
z magnitude 15.95 (0.01) 15.95 (0.007)
G magnitude 15.40 (0.002) 15.42 15.40 15.40 (0.003) 15.42
BP magnitude 15.39 (0.002) 15.38 15.38
RP magnitude 15.45 (0.002) 15.45 15.45
Pan g magnitude 15.32 (0.003)
Pan r magnitude 15.53 (0.002)
Pan i magnitude 15.76 (0.002)
Pan z magnitude 15.97 (0.004)
Pan y magnitude 16.13 (0.004)
E(B-V) 0.010

* 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.