EGGR 134

All names: WD 1943+16, UBV 16811, USNO-B1.0 1064-00468725, LTT 15765, G 142-50, Lan 46, uvby98 980142050, G142-50, WDJ194531.76+162738.77, WD 1943+163, 2MASS J19453177+1627395, NLTT 48201, 19455+1627, USNO 454, CSI+16-19433, Gaia DR2 1820678800523761152, GCRV 69826, PM J19455+1627, TIC 344063269, EGGR 134, PLX 4643.01, L 1285-97, GEN# +9.80142050, G 143-6, Gaia DR3 1820678800528443776, LSPM J1945+1627, Gaia EDR3 1820678800528443776, LP 453-9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Koester et al. 2014 Gianninas et al. 2011 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 19 45 31.73 (0.03) 19 45 31.73 (0.02) 19 45 31.73 19 45 31.76 (0.03) 19 45 31.73 19 45 32.11
Declination 16 27 34.04 (0.03) 16 27 34.19 (0.03) 16 27 34.04 16 27 38.77 (0.03) 16 27 34.19 16 27 45.00
Spectral type DA DA DA DA DA DA2.5 DA.5
Effective temperature [K] 17271.0 20372.0 (310) 20370.0 (310) 19451.0 (264) 20320.0 (310) 19763.0 (23) 19653.0 (184)
log(g) [cgs] 7.80 7.94 (0.05) 7.94 (0.05) 7.90 (0.09) 7.94 (0.05) 7.79 (0.004) 7.92 (0.009)
Mass [M] 0.512 0.59 (0.03) 0.565 (0.05) 0.59 (0.03) 0.576 (0.007)
log(Luminosity) [L] -1.54
Cooling age [Gyr] 0.0843
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H) -6.6 (0.2)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H) -6.8 (0.1)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 21.38 (0.05) 21.38 (0.05) 23.70 (3) 21.38 21.38 (0.05) 21.38 (0.05) 23.00 (3)
Distance [pc] 46.77 (0.1) 46.76 (0.1) 41.50 (5) 42.20 (5) 47.00 46.77 46.77 (0.1) 46.76 (0.1) 43.48 (6)
Composition H H H
Proper motion (right ascension) [mas/yr] -31.03279977 (0.04) -30.90439488 (0.05) -31.033 (0.04) -30.90439488
Proper motion (declination) [mas/yr] -295.6473177 (0.04) -295.5506508 (0.05) -295.647 (0.04) -295.5506508
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 13.96
V magnitude 13.95 (0.03) 13.99
R magnitude 14.40
I magnitude
J magnitude 14.49 (0.05)
H magnitude 14.63 (0.05)
K magnitude 14.63 (0.1)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.08 (0.0007) 14.09 14.08 14.08 (0.003) 14.09
BP magnitude 13.97 (0.002) 13.95 13.95
RP magnitude 14.08 (0.008) 14.04 14.04
Pan g magnitude 13.96 (0.007)
Pan r magnitude 14.28 (0.003)
Pan i magnitude 14.61 (0.002)
Pan z magnitude 14.83 (0.007)
Pan y magnitude 15.00 (0.004)
E(B-V) 0.003

* 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.