All names: HS 2138+0910, USNO-B1.0 0993-00590781, WDJ214103.03+092345.44, TIC 305506867, WD 2138+091, Gaia EDR3 1741417790361772160, Gaia DR3 1741417790361772160, GALEX J214103.0+092345, Gaia DR2 1741417790361772160, LAMOST J214103.04+092344.4, J2141+0923, SDSS J214103.05+092344.4, 2MASS J21410302+0923454, UCAC4 497-139290, SDSS J214103.04+092344.4
| 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
Spectra without link are available upon request
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.