WD 1939+169

All names: Gaia DR2 1820963913284517504, Gaia DR3 1820963913284517504, TIC 1842385646, Gaia EDR3 1820963913284517504, SV* SON 8314, UCAC3 215-226822, SV* HV 5452, AKARI-FIS-V1 J1942099+170519, UBV M 44675, UBV 16747, NSV 12320, PN G053.8-03.0, GEN# +6.20056063, CSI+16-19399, PN A55 51, PN VV' 509, PN A66 63, WD 1939+169, PN ARO 161, IRAS 19398+1657, V* UU Sge, PK 053-03 1

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 19 42 10.29 (0.02) 19 42 10.29 (0.02) 19 42 10.29 (0.02) 19 42 10.27
Declination 17 05 14.34 (0.02) 17 05 14.34 (0.02) 17 05 14.46 (0.02) 17 05 13.56
Spectral type sdO+G WD/M
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] 0.37 (0.03) 0.36 (0.03) 0.37 (0.03)
Distance [pc] 2738.93 (196) 2769.32 (263) 2738.98 (196)
Composition
Proper motion (right ascension) [mas/yr] -3.277495433 (0.02) -3.241 (0.04) -3.277 (0.02)
Proper motion (declination) [mas/yr] -7.49700938 (0.02) -7.465 (0.05) -7.497 (0.02)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
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 14.97 (0.02) 15.10 14.97 (0.01)
BP magnitude 14.99 (0.02) 14.96
RP magnitude 14.71 (0.02) 14.80
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.446

* 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.