EGGR 126

All names: CSI-04-18265, Gaia DR2 4257461275049675008, UBV M 42356, WD 1826-045, Gaia EDR3 4257461275049675008, uvby98 980021016, WDJ182909.86-042935.49, 2MASS J18290987-0429354, GCRV 68225, TIC 133348816, J1829-0429, L 993-18, NLTT 46555, UCAC4 428-076712, LP 690-13, WD 1826-04, LTT 7347, G21-16, UBV 15708, Gaia DR3 4257461275049675008, PLX 4247.01, G 21-16, USNO 449, GEN# +9.80021016, EGGR 126

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Gaia DR2 Bedard et al. 2017 Stilism Gianninas et al. 2011 Koester et al. 2009 Farihi et al. 2008 Koester et al. 2005 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 18 29 09.88 (0.02) 18 29 09.88 (0.07) 18 29 09.88 18 29 09.86 (0.02) 18 29 09.88 18 29 09.00
Declination -04 29 40.24 (0.03) -04 29 40.09 (0.5) -04 29 40.24 -04 29 35.49 (0.03) -04 29 40.09 -04 28 58.44
Spectral type DAZ DA DA DA DAZ DAZ DAZ DA DA DA5.4 DA6
Effective temperature [K] 8993.0 (79) 9059.0 (21) 9125.0 (131) 9270.0 (133) 9057.0 (8) 9480.0 9200.0 9480.0 9480.0 (350) 9135.0 (48)
log(g) [cgs] 7.96 (0.02) 8.00 (0.02) 8.00 (0.05) 8.23 (0.05) 7.99 (0.01) 8.10 7.94 7.94 (0.2) 8.00 (0.009)
Mass [M] 0.576 (0.01) 0.599 (0.01) 0.7 (0.2) 0.74 (0.03) 0.57 (0.09) 0.597 (0.007)
log(Luminosity) [L] -2.89 (0.1)
Cooling age [Gyr] 0.8200 0.6400 (0.1)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -8.83 -9.1 -8.826
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] 38.76 (0.04) 38.76 (0.04) 38.78 (0.6) 38.78 (0.6) 34.90 (4) 38.76 38.76 (0.04) 38.78 (0.6) 34.00 (3)
Distance [pc] 25.80 (0.03) 25.80 (0.03) 25.79 (0.4) 25.79 (0.4) 28.70 (3) 22.00 28.65 (3) 25.80 25.80 (0.03) 25.79 (0.4) 29.41 (3)
Composition H H H H H
Proper motion (right ascension) [mas/yr] 12.6556535 (0.03) 12.59170028 (0.1) 12.656 (0.03) 12.59170028
Proper motion (declination) [mas/yr] -296.7172716 (0.03) -296.6931329 (0.1) -296.717 (0.03) -296.6931329
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.79 14.82 (0.02)
V magnitude 14.57 14.58 14.58 14.57 (0.01)
R magnitude 14.47 14.74 (0.07)
I magnitude 14.32
J magnitude 14.28 (0.002) 14.44
H magnitude 14.26 (0.003) 14.44
K magnitude 14.32 (0.007) 14.39 14.09 (0.1)
u magnitude
g magnitude 14.67 (0.01)
r magnitude 14.64 (0.01)
i magnitude 14.59 (0.01)
z magnitude
G magnitude 14.54 (0.001) 14.56 14.54 14.54 (0.003) 14.56
BP magnitude 14.63 (0.001) 14.61 14.61
RP magnitude 14.38 (0.002) 14.39 14.39
Pan g magnitude 14.63 (0.004) 14.63 (0.005)
Pan r magnitude 14.64 (0.002) 14.64 (0.002)
Pan i magnitude 14.74 (0.008) 14.74 (0.009)
Pan z magnitude 14.85 (0.002) 14.85 (0.002)
Pan y magnitude 14.93 (0.003) 14.93 (0.003)
E(B-V) 0.001

* 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.