GALEX J194442.8+544942

All names: UCAC4 725-063601, 2MASS J19444284+5449426, WISE J194442.86+544942.6, GALEX J194442.8+544942, TIC 467187065, WISEA J194442.85+544942.7, Gaia DR3 2138663782338254464, O11J194443+544943, Gaia DR2 2138663782338254464

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 19 44 43.00 19 44 42.85 (0.04)
Declination 54 49 43.00 54 49 42.89 (0.03)
Spectral type sd
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.59 (0.05) 0.64 (0.04)
Distance [pc] 1707.65 (138) 1551.83 (87)
Composition
Proper motion (right ascension) [mas/yr] 2.227 (0.1) 2.227 (0.05)
Proper motion (declination) [mas/yr] -1.361 (0.1) -1.452 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.80 (0.04)
V magnitude 15.82 (0.01)
R magnitude 15.70 (0.3)
I magnitude
J magnitude 16.11 (0.1) 16.11 (0.1)
H magnitude 16.01 (0.2) 16.01 (0.2)
K magnitude 15.83
u magnitude
g magnitude 15.66 (0.01)
r magnitude 15.96 (0.01)
i magnitude
z magnitude
G magnitude 15.78 (0.004) 15.75 (0.004)
BP magnitude 15.65 (0.009)
RP magnitude 15.93 (0.02)
Pan g magnitude 15.64 (0.005)
Pan r magnitude 15.97 (0.007)
Pan i magnitude 16.20 (0.007)
Pan z magnitude 16.45 (0.01)
Pan y magnitude 16.51 (0.04)
E(B-V) 0.071

* 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.