GD 140

All names: WD 1134+30, PLX 2686.01, SDSS J113705.05+294758.1, Gaia EDR3 4019458647338779648, SDSS J113705.06+294758.1, LAMOST J113705.13+294757.7, GEN# +6.10060140, [TFW97] J113705.18+294758.21, LB 10276, HIC 56662, Gaia DR3 4019458647338779648, HIP 56662, GJ 433.1, CSI+30-11345, WD 1134+300, EGGR 184, TYC 1987-97-1, US 2696, BSD 55-539, 1SWASP J113705.10+294758.1, CNS5 2846, uvby98 610060140, 11370+2947, GSC 01984-00097, J1137+2947, [HMT98] AS 22-0, TIC 446165080, Gaia DR2 4019458647338779648, PB 3052, WDJ113705.10+294758.29, AC +30 27225-0, GD 140, PG 1134+301, PM J11370+2947, GALEX J113705.1+294757, CHSS 1965, LAMOST J113705.17+294757.54, 2MASS J11370512+2947581, AC +30 27225, TYC 1984-97-1, FS 21, CBS 46, LAMOST J113705.16+294757.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Jewett et al. 2024 O'Brien et al. 2024 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Tremblay et al. 2017 Stilism Holberg et al. 2016 Guo et al. 2015 Limoges et al. 2015 Sion et al. 2014 Zhao et al. 2013 Giammichele et al. 2012 Gianninas et al. 2011 Holberg et al. 2008 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 11 37 04.92 (0.03) 11 37 04.93 (0.06) 11 37 04.93 (0.06) 11 37 05.04 11 37 05.17 11 37 04.92 11 37 05.10 (0.03) 11 37 04.93 11 37 05.81
Declination 29 47 58.09 (0.03) 29 47 58.09 (0.06) 29 47 58.09 (0.06) 29 47 56.40 29 47 57.54 29 47 58.09 29 47 58.29 (0.03) 29 47 58.09 29 47 59.64
Spectral type DA DA DA DA DA DA DA DA DA DA DA DA2.4 DA DA DA DA DA2.2 DA3
Effective temperature [K] 21827.0 (45) 21827.0 (45) 21336.0 (427) 21827.0 (45) 21970.8 (226) 25605.0 22313.0 (339) 22470.0 (340) 22469.0 (342) 22547.0 (96) 22310.0 (339) 22469.0 21786.0 (160) 22469.0 (342) 22470.0 (342) 22445.0 (233)
log(g) [cgs] 8.55 (0.002) 8.55 8.52 (0.02) 8.55 (0.002) 8.55 (0.01) 8.70 8.56 (0.05) 8.56 (0.05) 8.56 (0.05) 8.53 (0.01) 8.56 (0.05) 8.58 (0.03) 8.56 (0.05) 8.56 (0.05) 8.57 (0.008)
Mass [M☉] 0.964 (0.001) 0.964 (0.001) 0.944 (0.01) 0.965 (0.002) 1.057 0.98 (0.1) 0.97 (0.03) 0.95 (0.01) 0.98 (0.03) 0.98 (0.02) 0.97 (0.03) 0.97 (0.03) 0.976 (0.006)
log(Luminosity) [L☉] -1.79 -1.78
Cooling age [Gyr] 0.1700 (0.001) 0.1374 0.1700 0.1740 (0.01) 0.1600
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
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] 63.73 (0.04) 63.73 (0.04) 63.78 (0.09) 63.78 (0.09) 63.26 (4) 63.96 (3) 70.60 (11) 65.28 (4) 65.28 (3) 63.73 63.73 (0.04) 63.78 (0.09) 70.40 (11)
Distance [pc] 15.69 (0.01) 15.69 (0.01) 15.68 (0.02) 15.68 (0.02) 15.80 (0.9) 15.81 (0.9) 15.63 (0.8) 14.20 (2) 15.31 15.00 15.30 (0.7) 20.00 15.37 15.69 15.69 (0.01) 15.68 (0.02) 14.20 (2)
Composition H H H H H H H H H
Proper motion (right ascension) [mas/yr] -147.7142902 (0.03) -147.4592335 (0.1) -147.714 (0.03) -147.4592335
Proper motion (declination) [mas/yr] -12.5325451 (0.04) -12.78183834 (0.1) -12.533 (0.04) -12.78183834
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.42 (0.01)
V magnitude 12.49 (0.02) 12.48 12.47 12.45 (0.01)
R magnitude 12.73 (0.05)
I magnitude 12.71
J magnitude 12.99 (0.02)
H magnitude 13.11 (0.03)
K magnitude 13.18 (0.03)
u magnitude 12.29 13.57 (0.004) 13.57 (0.004) 12.27
g magnitude 12.31 12.45 (0.001) 12.45 (0.001) 12.31
r magnitude 12.69 12.88 (0.002) 12.88 (0.002) 12.68
i magnitude 12.99 13.16 (0.002) 13.16 (0.002) 12.99
z magnitude 13.31 13.74 (0.005) 13.74 (0.005) 13.35
G magnitude 12.49 (0.001) 12.51 12.51 12.49 12.49 (0.003) 12.51
BP magnitude 12.40 (0.001) 12.37 12.37
RP magnitude 12.69 (0.0008) 12.70 12.70
Pan g magnitude 12.93 (0.001)
Pan r magnitude 12.69 (0.001)
Pan i magnitude 13.00 (0.001)
Pan z magnitude 13.29 (0.006)
Pan y magnitude 13.45 (0.005)
E(B-V) 0.000

* 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.