LHS 2559

All names: J1226+3513, Gaia DR3 1518943638389520384, Gaia EDR3 1518943638389520384, SDSS J122635.34+351309.9, 1224+354, PM J12265+3513, LP 266-55, Gaia DR2 1518943638389520384, PSO J186.6448+35.2194, 2MASS J12263565+3513097, LSPM J1226+3513, WDJ122635.58+351309.86, NLTT 30751, LHS 2559, TIC 82346381, WD 1224+354, 12265+3513, USNO-B1.0 1252-00197989, SDSS J122635.35+351309.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Kilic et al. 2020 McCleery et al. 2020 Blouin et al. 2019 Leggett et al. 2018 Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 26 34.71 (0.06) 12 26 34.73 (0.1) 12 26 34.73 (0.1) 12 26 34.71 12 26 35.58 (0.06) 12 26 34.73 12 26 38.52
Declination 35 13 09.88 (0.05) 35 13 09.88 (0.06) 35 13 09.88 (0.06) 35 13 09.88 35 13 09.86 (0.05) 35 13 09.88 35 13 12.00
Spectral type DA DA DA DA DA DA DA9.8 DA DC: DC9 DC9
Effective temperature [K] 5095.0 (13) 5102.0 (39) 5094.0 (18) 5089.0 (20) 5051.3 (35) 5080.0 (35) 5142.0 (84) 5100.0 (56) 5160.0 (26)
log(g) [cgs] 7.81 (0.009) 7.79 (0.02) 7.82 (0.01) 7.81 (0.01) 7.79 (0.02) 7.80 (0.03) 7.91 (0.04) 8.00 (0) 7.84 (0.01)
Mass [M] 0.473 (0.007) 0.463 (0.007) 0.477 (0.008) 0.47 (0.009) 0.464 (0.01) 0.528 (0.04) 0.58 (0.1) 0.488 (0.01)
log(Luminosity) [L] -4.01
Cooling age [Gyr] 3.2000 3.1700 (0.2) 3.8510 (0.6)
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] 28.64 (0.09) 28.64 (0.09) 28.70 (0.1) 28.70 (0.1) 28.70 (0.1) 29.87 (0.6) 28.70 (0.1) 28.64 28.64 (0.09) 28.70 (0.1)
Distance [pc] 34.92 (0.1) 34.92 (0.1) 34.84 (0.1) 34.84 (0.1) 34.84 (0.1) 33.48 (0.7) 34.84 (0.1) 31.20 (5) 34.92 34.92 (0.1) 34.84 (0.1)
Composition H H H H H
Proper motion (right ascension) [mas/yr] -667.5878421 (0.06) -667.9124453 (0.2) -667.588 (0.06) -667.9124453
Proper motion (declination) [mas/yr] 1.186513377 (0.08) 1.143982642 (0.1) 1.187 (0.08) 1.143982642
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.50
V magnitude
R magnitude 16.90
I magnitude
J magnitude 15.99 (0.01) 15.86 (0.09) 15.86 (0.09)
H magnitude 16.10 (0.2) 16.15 (0.2) 16.15 (0.2)
K magnitude
u magnitude 19.39 (0.03) 19.39 (0.03) 19.39 (0.03)
g magnitude 17.78 (0.009) 17.85 (0.006)
r magnitude 17.20 (0.0006) 17.20 (0.005)
i magnitude 16.95 (0.003) 16.96 (0.005)
z magnitude 16.86 (0.01) 16.86 (0.01)
G magnitude 17.22 (0.006) 17.23 17.23 17.22 17.22 (0.003) 17.23
BP magnitude 17.67 (0.006) 17.70 17.70
RP magnitude 16.61 (0.005) 16.63 16.63
Pan g magnitude 17.78 (0.009) 17.78 (0.009) 17.78 (0.009)
Pan r magnitude 17.20 (0.0007) 17.20 (0.0006) 17.20 (0.001)
Pan i magnitude 16.95 (0.003) 16.95 (0.003) 16.95 (0.003)
Pan z magnitude 16.91 (0.02) 16.91 (0.02) 16.91 (0.02)
Pan y magnitude 16.85 (0.007) 16.85 (0.01) 16.85 (0.01)
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.