GD 226

All names: WD 1959+05, WDJ200212.83+060736.72, Gaia DR3 4248931504366754304, GALEX J200212.8+060736, Gaia EDR3 4248931504366754304, LSPM J2002+0607, 2MASS J20021284+0607375, TIC 367127531, Gaia DR2 4248931504366754304, GD 226, GEN# +6.10060226, USNO-B1.0 0961-00511930, WD 1959+059, WD1959+059

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Voss et al. 2006 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 20 02 12.73 (0.04) 20 02 12.73 (0.06) 20 02 12.90 20 02 12.73 20 02 12.83 (0.04) 20 02 12.73 20 02 13.66
Declination 06 07 34.93 (0.03) 06 07 34.98 (0.03) 06 07 35.00 06 07 34.93 06 07 36.72 (0.03) 06 07 34.98 06 07 42.96
Spectral type DA DA DA DA DA4.6 DA5
Effective temperature [K] 10490.0 10990.0 (173) 10846.0 (15) 10730.0 10860.0 (26) 10362.0 (80)
log(g) [cgs] 8.03 8.25 (0.06) 8.07 (0.01) 8.06 8.01 (0.02) 7.99 (0.01)
Mass [M] 0.622 0.76 (0.04) 0.61 0.597 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.5566
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] 13.54 (0.05) 13.66 (0.07) 13.54 13.54 (0.05) 13.66 (0.07)
Distance [pc] 73.84 (0.3) 73.21 (0.4) 67.00 73.84 73.84 (0.3) 73.21 (0.4)
Composition H H
Proper motion (right ascension) [mas/yr] -100.3669218 (0.05) -100.3972487 (0.1) -100.367 (0.05) -100.3972487
Proper motion (declination) [mas/yr] -111.9293936 (0.04) -111.9642034 (0.08) -111.929 (0.04) -111.9642034
Variability VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.56
V magnitude 16.41 16.40 16.41
R magnitude 16.30
I magnitude
J magnitude 16.27 (0.1)
H magnitude 16.20 (0.2)
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.38 (0.003) 16.40 16.38 16.38 (0.003) 16.40
BP magnitude 16.42 (0.003) 16.41 16.41
RP magnitude 16.31 (0.004) 16.32 16.32
Pan g magnitude 16.37 (0.002)
Pan r magnitude 16.49 (0.002)
Pan i magnitude 16.64 (0.002)
Pan z magnitude 16.82 (0.006)
Pan y magnitude 16.96 (0.007)
E(B-V) 0.006
Period #1 [s] 1350.4
Amplitude #1 [mma] 5.7

* 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.