Gaia DR2 1186502513864638464

All names: Gaia DR2 1186502513864638464, SDSS J144446.41+154432.7, WDJ144446.44+154432.19, Gaia EDR3 1186502513864638464, SDSS J144446.42+154432.8, Gaia DR3 1186502513864638464

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 14 44 46.39 (0.1) 14 44 46.39 14 44 46.39 14 44 46.44 (0.1) 14 44 46.39
Declination 15 44 33.74 (0.2) 15 44 33.69 15 44 33.74 15 44 32.20 (0.2) 15 44 33.69
Spectral type DA: DA
Effective temperature [K] 4801.0 4479.0 4903.0 (85)
log(g) [cgs] 7.92 7.68 7.97 (0.05)
Mass [M] 0.53 0.395 0.561 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 5.6540 4.1020
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 18.79 (0.2) 18.86 (0.3) 18.79 18.79 (0.2) 18.86 (0.3)
Distance [pc] 53.21 (0.7) 53.01 (0.8) 53.21 53.21 (0.7) 53.01 (0.8)
Composition
Proper motion (right ascension) [mas/yr] -47.8926893 (0.2) -47.76521033 (0.4) -47.893 (0.2) -47.76521033
Proper motion (declination) [mas/yr] 96.19590658 (0.2) 96.77415626 (0.5) 96.196 (0.2) 96.77415626
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.33 (0.09) 21.33 (0.09)
g magnitude 19.31 (0.01) 19.31 (0.01)
r magnitude 18.54 (0.009) 18.54 (0.009)
i magnitude 18.23 (0.009) 18.23 (0.009)
z magnitude 18.13 (0.02) 18.13 (0.02)
G magnitude 18.58 (0.05) 18.61 18.58 18.58 (0.003) 18.61
BP magnitude 19.09 (0.05) 19.17 19.17
RP magnitude 17.88 (0.02) 17.88 17.88
Pan g magnitude 19.22 (0.008)
Pan r magnitude 18.54 (0.008)
Pan i magnitude 18.27 (0.004)
Pan z magnitude 18.16 (0.006)
Pan y magnitude 18.09 (0.02)
E(B-V) 0.005

* 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.