HS 2138+0910

All names: J2141+0923, Gaia EDR3 1741417790361772160, WDJ214103.03+092345.44, SDSS J214103.05+092344.4, LAMOST J214103.04+092344.4, UCAC4 497-139290, 2MASS J21410302+0923454, SDSS J214103.04+092344.4, GALEX J214103.0+092345, HS 2138+0910, Gaia DR3 1741417790361772160, WD 2138+091, Gaia DR2 1741417790361772160, TIC 305506867, USNO-B1.0 0993-00590781

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Koester et al. 2009 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 21 41 03.06 (0.04) 21 41 03.06 (0.07) 21 41 03.06 21 41 03.03 (0.04) 21 41 03.06 21 41 02.50
Declination 09 23 43.64 (0.03) 09 23 43.70 (0.06) 09 23 43.64 09 23 45.45 (0.03) 09 23 43.70 09 23 40.56
Spectral type DA DA DA DA DA DA DA DA
Effective temperature [K] 9238.0 (44) 9199.0 (39) 9239.0 (44) 9191.0 9263.0 (7) 9142.0 (51)
log(g) [cgs] 7.84 (0.008) 7.83 (0.008) 7.84 (0.009) 7.83 7.88 (0.01) 7.82 (0.01)
Mass [M] 0.51 (0.006) 0.503 (0.007) 0.509 (0.007) 0.504 0.498 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.6400 0.6078
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] 18.98 (0.04) 18.96 (0.08) 18.96 (0.08) 18.98 18.98 (0.04) 18.96 (0.08)
Distance [pc] 52.67 (0.1) 52.74 (0.2) 52.74 (0.2) 52.67 52.67 (0.1) 52.74 (0.2)
Composition H H H
Proper motion (right ascension) [mas/yr] 32.89870976 (0.04) 32.82742568 (0.1) 32.899 (0.04) 32.82742568
Proper motion (declination) [mas/yr] -112.7508961 (0.04) -112.4988114 (0.1) -112.751 (0.04) -112.4988114
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.90 16.29 (0.04)
V magnitude 15.84 (0.01)
R magnitude 16.22 (0.2)
I magnitude
J magnitude 15.63 (0.009) 15.55 (0.06)
H magnitude 15.40 (0.1) 15.40 (0.1)
K magnitude 15.38 (0.2) 15.38 (0.2)
u magnitude 16.29 (0.007) 16.28 (0.007) 16.28 (0.007)
g magnitude 15.86 (0.005) 15.86 (0.005)
r magnitude 15.89 (0.005) 15.89 (0.005)
i magnitude 16.00 (0.006) 16.00 (0.006)
z magnitude 16.11 (0.008) 16.11 (0.008)
G magnitude 15.82 (0.002) 15.84 15.82 15.82 (0.003) 15.84
BP magnitude 15.90 (0.002) 15.90 15.90
RP magnitude 15.68 (0.003) 15.69 15.69
Pan g magnitude 15.86 (0.004) 15.86 (0.004)
Pan r magnitude 15.91 (0.003) 15.91 (0.004)
Pan i magnitude 16.00 (0.003) 16.00 (0.003)
Pan z magnitude 16.14 (0.004) 16.14 (0.003)
Pan y magnitude 16.24 (0.01) 16.24 (0.01)
E(B-V) 0.002

* 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.