NLTT 22401

All names: TIC 357167603, WDJ094316.59+513441.34, USNO-B1.0 1415-00213882, LSPM J0943+5134, NLTT 22401, Gaia DR3 1020076452450631296, LP 126-40, 09432+5134, Gaia EDR3 1020076452450631296, J0943+5134, PSO J145.8198+51.5771, PM J09432+5134, SDSS J094316.61+513440.8, WD 0939+518, Gaia DR2 1020076452450631296, 2MASS J09431656+5134404

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Blouin et al. 2019 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 09 43 16.81 (0.09) 09 43 16.80 (0.1) 09 43 16.81 09 43 16.59 (0.09) 09 43 16.80 09 43 16.75
Declination 51 34 37.17 (0.08) 51 34 37.30 (0.1) 51 34 37.17 51 34 41.33 (0.08) 51 34 37.30 51 34 33.24
Spectral type DC DC DC DC DC DC DC DC DC
Effective temperature [K] 4815.0 (22) 4848.0 (22) 4800.0 (25) 4817.0 4495.0 4800.0 (75) 4877.0 (45)
log(g) [cgs] 7.83 (0.01) 7.86 (0.01) 7.82 (0.03) 7.83 7.59 8.00 (0) 7.89 (0.02)
Mass [M] 0.482 (0.01) 0.498 (0.01) 0.473 (0.01) 0.479 0.352 0.58 (0.1) 0.512 (0.02)
log(Luminosity) [L] -4.12
Cooling age [Gyr] 5.0300 4.5380 (0.3) 4.5750 3.4600
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] 21.67 (0.1) 21.59 (0.2) 21.59 (0.2) 21.59 (0.2) 21.67 21.67 (0.1) 21.59 (0.2)
Distance [pc] 46.14 (0.3) 46.32 (0.4) 46.33 (0.4) 46.33 (0.4) 41.90 (5) 46.14 46.14 (0.3) 46.33 (0.4)
Composition H H H H
Proper motion (right ascension) [mas/yr] 126.7286481 (0.1) 126.355662 (0.2) 126.729 (0.1) 126.355662
Proper motion (declination) [mas/yr] -260.3821133 (0.1) -260.4738016 (0.3) -260.382 (0.1) -260.4738016
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.10
V magnitude
R magnitude 17.50
I magnitude
J magnitude 16.72 (0.05) 16.68 (0.1) 16.68 16.72 (0.05)
H magnitude 16.61 (0.06) 16.60 (0.3) 16.60 16.61 (0.06)
K magnitude 16.53 (0.06) 16.07 16.53 (0.06)
u magnitude 20.61 (0.08) 20.77 20.63 (0.08) 20.55 (0.06) 20.52
g magnitude 18.89 18.80 (0.009) 18.90 (0.009) 18.89
r magnitude 18.14 18.11 (0.005) 18.13 (0.007) 18.13
i magnitude 17.83 17.83 (0.005) 17.83 (0.008) 17.84
z magnitude 17.72 17.73 (0.004) 17.72 (0.02) 17.75
G magnitude 18.16 (0.02) 18.18 18.16 18.16 (0.003) 18.18
BP magnitude 18.72 (0.02) 18.72 18.72
RP magnitude 17.50 (0.008) 17.51 17.51
Pan g magnitude 18.80 (0.008) 18.80 (0.009) 18.80 (0.009)
Pan r magnitude 18.11 (0.005) 18.11 (0.006) 18.11 (0.006)
Pan i magnitude 17.83 (0.004) 17.83 (0.005) 17.83 (0.005)
Pan z magnitude 17.73 (0.004) 17.73 (0.004) 17.73 (0.004)
Pan y magnitude 17.69 (0.007) 17.69 (0.007) 17.69 (0.007)
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.