WD 1434+437

All names: J1436+4332, SDSS J143642.79+433235.7, Gaia DR3 1493367245581725184, WD 1434+437, 14367+4332, LP 221-217, 2MASS J14364286+4332340, NLTT 37922, SDSS J143642.78+433235.7, SDSS J143642.78+433235.6, PM J14367+4332, PSO J219.1768+43.5448, LSPM J1436+4332, 1434+437, LHS 2951, SDSS J143642.79+433235.6, Gaia EDR3 1493367245581725184, TIC 148782814, WDJ143642.85+433234.61, Gaia DR2 1493367245581725184, USNO-B1.0 1335-00249699

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 Leggett et al. 2018 MWDD H MWDD HE 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 14 36 42.37 (0.04) 14 36 42.39 (0.05) 14 36 42.39 (0.05) 14 36 42.37 14 36 42.85 (0.04) 14 36 42.39 14 36 31.75
Declination 43 32 42.68 (0.04) 43 32 42.43 (0.06) 43 32 42.43 (0.06) 43 32 42.68 43 32 34.61 (0.04) 43 32 42.43 43 32 00.24
Spectral type DC DC DC DC DC DC10.7 DC DC DC DC: DC9 DC9
Effective temperature [K] 4702.0 (18) 4634.0 (40) 4703.0 (17) 4618.8 (30) 4685.0 (40) 4690.0 (75) 4745.0 4429.0 4710.0 (110) 4689.0 (24)
log(g) [cgs] 7.92 (0.01) 7.85 (0.03) 7.93 (0.01) 7.85 (0.03) 7.93 (0.02) 7.95 (0.04) 7.95 7.72 7.97 (0.04) 7.89 (0.01)
Mass [M] 0.528 (0.008) 0.489 (0.02) 0.538 (0.008) 0.539 (0.01) 0.55 (0.04) 0.547 0.411 0.56 (0.03) 0.513 (0.01)
log(Luminosity) [L] -4.14
Cooling age [Gyr] 6.4500 6.3020 (0.3) 6.4780 (0.5) 6.2020 4.4840
log(H/He) 0.4
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] 36.82 (0.05) 36.82 (0.05) 36.86 (0.07) 36.86 (0.07) 36.86 (0.07) 37.38 (0.6) 36.86 (0.07) 37.00 (1) 36.82 36.82 (0.05) 36.86 (0.07)
Distance [pc] 27.16 (0.04) 27.16 (0.04) 27.13 (0.05) 27.13 (0.05) 27.13 (0.05) 26.75 (0.4) 27.13 (0.05) 27.00 (6) 27.16 27.16 (0.04) 27.13 (0.05)
Composition H H H H
Proper motion (right ascension) [mas/yr] -322.4410147 (0.05) -322.3599081 (0.1) -322.441 (0.05) -322.3599081
Proper motion (declination) [mas/yr] 504.2671565 (0.05) 504.1560866 (0.1) 504.267 (0.06) 504.1560866
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.10
V magnitude
R magnitude 17.20
I magnitude
J magnitude 15.78 (0.04) 15.83 (0.06) 15.83 (0.06)
H magnitude 15.62 (0.04) 15.62 (0.1) 15.62 (0.1)
K magnitude 15.51 (0.04) 15.60 (0.2) 15.60 (0.2)
u magnitude 19.89 (0.03) 19.90 (0.03) 19.90 (0.03) 19.83
g magnitude 17.89 (0.008) 18.04 (0.006) 18.04
r magnitude 17.17 (0.0008) 17.19 (0.005) 17.19
i magnitude 16.88 (0.004) 16.88 (0.005) 16.85
z magnitude 16.78 (0.005) 16.72 (0.009) 16.75
G magnitude 17.21 (0.008) 17.23 17.23 17.21 17.21 (0.003) 17.23
BP magnitude 17.78 (0.008) 17.79 17.79
RP magnitude 16.51 (0.004) 16.53 16.53
Pan g magnitude 17.89 (0.01) 17.89 (0.008) 17.89 (0.008)
Pan r magnitude 17.17 (0.001) 17.17 (0.0008) 17.17 (0.001)
Pan i magnitude 16.88 (0.004) 16.88 (0.004) 16.88 (0.004)
Pan z magnitude 16.78 (0.004) 16.78 (0.005) 16.78 (0.005)
Pan y magnitude 16.74 (0.02) 16.74 (0.02) 16.74 (0.02)
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.