Gaia DR2 226946969569258368

All names: USNO-B1.0 1293-00078088, WDJ040550.54+391939.15, Gaia DR3 226946969569258368, WDJ040550.54+391939.14, LSPM J0405+3919, Gaia DR2 226946969569258368, Gaia EDR3 226946969569258368

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 04 05 50.74 (0.2) 04 05 50.74 04 05 50.74 04 05 50.54 (0.2) 04 05 50.74
Declination 39 19 37.38 (0.1) 39 19 37.43 39 19 37.38 39 19 39.15 (0.1) 39 19 37.43
Spectral type DC: DC
Effective temperature [K] 4660.0 4341.0 4695.0 (71)
log(g) [cgs] 7.81 7.56 7.83 (0.04)
Mass [M] 0.466 0.339 0.478 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 4.9040 3.6060
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 18.11 (0.2) 18.14 (0.4) 18.11 18.11 (0.2) 18.14 (0.4)
Distance [pc] 55.21 (0.7) 55.14 (1) 55.21 55.21 (0.7) 55.14 (1)
Composition
Proper motion (right ascension) [mas/yr] 150.4675193 (0.3) 148.1574684 (0.8) 150.468 (0.3) 148.1574684
Proper motion (declination) [mas/yr] -110.5969042 (0.2) -110.540104 (0.5) -110.597 (0.2) -110.540104
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.00
V magnitude
R magnitude 18.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.67 (0.03) 18.69 18.67 18.67 (0.003) 18.69
BP magnitude 19.26 (0.03) 19.22 19.22
RP magnitude 17.99 (0.01) 17.98 17.98
Pan g magnitude 19.36 (0.02)
Pan r magnitude 18.64 (0.006)
Pan i magnitude 18.32 (0.008)
Pan z magnitude 18.21 (0.01)
Pan y magnitude 18.14 (0.02)
E(B-V) 0.001

* 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.