LAWD 86

All names: WISEA J212657.84+733840.9, LSPM J2126+7338, G 263-3, NLTT 51355, G261-43A, USNO-B1.0 1636-00114312, EGGR 144, GJ 9743, AC +73 8031-0, GSC 04473-00342, PM J21269+7338, CSI+73-21267, Gaia EDR3 2274076297221555968, CNS5 5281, GEN# +9.80261043, 21269+7338, WDS J21270+7339A, LTT 18524, 2MASS J21265770+7338444, SDSS J212657.71+733843.3, ** ZUC 15A, ASCC 58117, AC +73 8031, J2126+7338, PLX 5188.01, GCRV 72233, WDJ212657.66+733844.66, WD 2126+734, uvby98 980261043, Gaia DR2 2274076297221555968, G 261-43, G261-43, UBV M 42798, Gaia DR3 2274076297221555968, WD 2126+73, UCAC3 328-58274, UBV 18527, KUV 21267+7326, TIC 323139945, USNO 267, LAWD 86, GJ 828.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 26 57.87 (0.02) 21 26 57.86 (0.03) 21 26 57.86 (0.03) 21 26 57.60 21 26 57.87 21 26 57.66 (0.02) 21 26 57.86 21 26 55.68
Declination 73 38 39.64 (0.02) 73 38 39.80 (0.03) 73 38 39.80 (0.03) 73 38 42.00 73 38 39.64 73 38 44.67 (0.02) 73 38 39.80 73 38 54.24
Spectral type DA DA DA DA DA DA DA DA DA3.8 DA DA DA DA3.1 DA4
Effective temperature [K] 15554.0 (270) 15127.0 (281) 15553.0 (270) 15039.6 (257) 13873.0 16040.0 (236) 16104.0 (237) 15950.0 (234) 16104.0 16104.0 (237) 16110.0 (236) 15993.0 (132)
log(g) [cgs] 7.94 (0.01) 7.89 (0.02) 7.95 (0.01) 7.89 (0.02) 7.82 7.99 (0.04) 7.97 (0.04) 7.97 (0.04) 7.97 (0.04) 7.97 (0.04) 7.96 (0.007)
Mass [M] 0.582 (0.01) 0.552 (0.01) 0.583 (0.01) 0.511 0.58 (0.08) 0.6 (0.02) 0.6 (0.03) 0.6 (0.03) 0.6 (0.03) 0.594 (0.005)
log(Luminosity) [L] -1.99 -1.97
Cooling age [Gyr] 0.1910 0.1500 0.1500
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] 44.99 (0.03) 44.99 (0.03) 45.04 (0.04) 45.04 (0.04) 47.10 (2) 47.10 (2) 47.10 (2) 44.99 44.99 (0.03) 45.04 (0.04) 43.00 (7)
Distance [pc] 22.23 (0.01) 22.23 (0.01) 22.20 (0.02) 22.20 (0.02) 21.20 (1) 21.23 (1) 21.20 (1) 21.23 21.20 (0.8) 22.00 22.23 22.23 (0.01) 22.20 (0.02) 23.26 (4)
Composition H H H H H H H
Proper motion (right ascension) [mas/yr] 55.3384477 (0.03) 55.13691143 (0.07) 55.338 (0.03) 55.13691143
Proper motion (declination) [mas/yr] -314.1996029 (0.03) -313.9527028 (0.06) -314.2 (0.03) -313.9527028
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity DDr yes
B magnitude 12.80
V magnitude 12.88 12.82 12.83
R magnitude 13.30
I magnitude
J magnitude 13.10 (0.03)
H magnitude 13.16 (0.04)
K magnitude 13.17 (0.04)
u magnitude 13.31 (0.004) 13.18 (0.003)
g magnitude 14.29 (0.009) 12.94 (0.003)
r magnitude 14.27 (0.01) 13.30 (0.006)
i magnitude 13.54 (0.003) 13.44 (0.003)
z magnitude 13.58 (0.004) 13.51 (0.004)
G magnitude 12.89 (0.001) 12.90 12.90 12.89 12.89 (0.003) 12.90
BP magnitude 12.84 (0.001) 12.82 12.82
RP magnitude 12.99 (0.002) 13.00 13.00
Pan g magnitude 12.82 (0.01)
Pan r magnitude 13.05 (0.02)
Pan i magnitude 13.32 (0.001)
Pan z magnitude 13.56 (0.005)
Pan y magnitude 13.72 (0.004)
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.