SDSS J084321.60+541422.6

All names: SDSS J084321.62+541422.6, Gaia DR2 1030381796981255936, SDSS J084321.61+541422.5, SDSS J084321.62+541422.5, LSPM J0843+5414, SDSS J084321.61+541422.6, J0843+5414, SDSS J084321.60+541422.6, WDJ084321.63+541422.66, Gaia DR3 1030381796981255936, SDSS J084321.60+541422.5, Gaia EDR3 1030381796981255936, LP 125-1, USNO-B1.0 1442-00192397, GALEX J084321.4+541421, WD 0839+544, NLTT 20075

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 43 21.27 (0.1) 08 43 21.62 08 43 21.28 (0.1) 08 43 21.27 08 43 21.62 (0.1) 08 43 21.28 08 43 21.61 08 43 21.65 08 43 21.60
Declination 54 14 20.26 (0.1) 54 14 22.56 54 14 20.34 (0.1) 54 14 20.26 54 14 22.66 (0.1) 54 14 20.34 54 14 22.58 54 14 16.80 54 14 22.58
Spectral type DA DA DA DA DA DA DA7 DA DA DA DA DA
Effective temperature [K] 6889.0 (48) 6948.0 (47) 6889.0 (48) 6769.0 6950.0 (90) 6800.0 (92) 7526.0 (47) 6906.0 (44)
log(g) [cgs] 7.97 (0.02) 7.99 (0.02) 7.96 (0.02) 7.92 8.00 (0.2) 7.94 (0.03) 8.89 (0.1) 7.45 (0.1)
Mass [M] 0.576 (0.01) 0.583 (0.02) 0.567 (0.02) 0.544 0.59 (0.1) 0.558 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.5600 1.4670 1.5849
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] 11.03 (0.1) 10.93 (0.2) 10.93 (0.2) 11.03 11.03 (0.1) 10.93 (0.2)
Distance [pc] 90.66 (1) 91.49 (1) 91.48 (1) 90.66 90.66 (1) 91.48 (1)
Composition H H H H
Proper motion (right ascension) [mas/yr] -195.9963044 (0.2) -196.529863 (0.3) -195.996 (0.1) -196.53 -196.0
Proper motion (declination) [mas/yr] -149.7175081 (0.1) -149.7904613 (0.2) -149.718 (0.1) -149.79 -148.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.60
V magnitude
R magnitude 18.50
I magnitude
J magnitude 17.59 (0.03)
H magnitude
K magnitude
u magnitude 19.02 (0.02) 19.00 (0.02) 19.02 (0.02) 19.02 (0.02) 19.02 (0.02) 19.02 19.02 (0.02)
g magnitude 18.45 (0.007) 18.45 (0.007) 18.45 (0.007) 18.44 (0.03) 18.44 18.43 (0.03)
r magnitude 18.27 (0.008) 18.27 (0.008) 18.27 (0.008) 18.28 (0.02) 18.28 18.26 (0.02)
i magnitude 18.22 (0.009) 18.22 (0.009) 18.22 (0.009) 18.22 (0.02) 18.22 18.21 (0.02)
z magnitude 18.32 (0.03) 18.32 (0.03) 18.32 (0.03) 18.34 (0.03) 18.34 18.32 (0.03)
G magnitude 18.25 (0.01) 18.27 18.25 18.25 (0.003) 18.27
BP magnitude 18.47 (0.01) 18.45 18.45
RP magnitude 17.89 (0.01) 17.89 17.89
Pan g magnitude 18.46 (0.007) 18.46 (0.008)
Pan r magnitude 18.27 (0.002) 18.27 (0.002)
Pan i magnitude 18.24 (0.004) 18.24 (0.005)
Pan z magnitude 18.28 (0.007) 18.28 (0.008)
Pan y magnitude 18.24 (0.01) 18.24 (0.01)
E(B-V) 0.004

* 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.