Ton 20
All names: TIC 125552142, UBV M 43102, WDJ094104.47+282224.16, LAMOST J094104.38+282225.3, SDSS J094104.42+282224.5, J0941+2822, TON 20, LAMOST J094104.42+282224.5, Gaia EDR3 648307961663426048, 2MASS J09410446+2822239, GALEX J094104.3+282224, GEN# +6.10070020, Ton 20, SDSS J094104.43+282224.6, WIRED J094104.43+282224.6, PG 0938+286, SDSS J094104.43+282224.5, WD 0938+286, Gaia DR2 648307961663426048, Gaia DR3 648307961663426048, LAMOST J094104.43+282224.58, [BGK2006] J094104.43+282224.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Zhao et al. 2013 | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 41 04.33 (0.03) | 09 41 04.43 | 09 41 04.34 (0.05) | 09 41 04.43 | 09 41 04.33 | 09 41 04.47 (0.03) | 09 41 04.34 | 09 41 04.58 | 09 41 04.43 | ||||||||||
| Declination | 28 22 25.80 (0.03) | 28 22 24.58 | 28 22 25.75 (0.05) | 28 22 24.58 | 28 22 25.80 | 28 22 24.16 (0.03) | 28 22 25.75 | 28 22 19.92 | 28 22 24.61 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA3.3 | DA | DA4 | DA | DA | ||||||||
| Effective temperature | [K] | 15317.0 (157) | 15325.0 (157) | 14665.0 | 15340.0 (169) | 16713.0 (438) | 15150.0 (250) | 14490.0 (243) | 15688.0 (145) | 15451.0 (52) | |||||||||
| log(g) | [cgs] | 7.93 (0.009) | 7.91 (0.01) | 7.86 | 7.88 (0.04) | 7.86 (0.09) | 7.95 (0.05) | 7.82 (0.05) | 7.96 (0.009) | 7.91 (0.01) | |||||||||
| Mass | [M☉] | 0.575 (0.007) | 0.564 (0.008) | 0.537 | 0.55 (0.02) | 0.54 (0.05) | 0.58 (0.03) | 0.52 (0.02) | 0.59 (0.007) | 0.567 (0.005) | |||||||||
| log(Luminosity) | [L☉] | -2.07 | |||||||||||||||||
| Cooling age | [Gyr] | 0.1709 | 0.1090 (0.02) | 0.1995 | |||||||||||||||
| 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] | 13.30 (0.04) | 13.13 (0.07) | 13.30 | 13.30 (0.04) | 13.13 (0.07) | |||||||||||||
| Distance | [pc] | 75.17 (0.2) | 76.16 (0.4) | 82.00 | 74.00 | 79.00 | 75.17 | 75.17 (0.2) | 76.16 (0.4) | ||||||||||
| Composition | H | H | H | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -111.5498016 (0.04) | -111.6424127 (0.09) | -111.55 (0.04) | -111.642 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | 102.6077089 (0.03) | 102.6900848 (0.08) | 102.608 (0.03) | 102.69 | ||||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 15.62 | ||||||||||||||||||
| V magnitude | 15.53 | 15.57 | |||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 15.82 (0.07) | ||||||||||||||||||
| H magnitude | 15.75 (0.03) | ||||||||||||||||||
| K magnitude | 15.92 (0.06) | ||||||||||||||||||
| u magnitude | 15.71 (0.005) | 15.70 | 15.71 (0.005) | 15.71 (0.005) | 15.71 (0.01) | ||||||||||||||
| g magnitude | 15.39 (0.004) | 15.42 | 15.39 (0.004) | 15.39 (0.004) | 15.42 (0.03) | ||||||||||||||
| r magnitude | 15.70 (0.004) | 15.70 | 15.70 (0.004) | 15.70 (0.004) | 15.70 (0.01) | ||||||||||||||
| i magnitude | 15.95 (0.004) | 15.94 | 15.95 (0.004) | 15.95 (0.004) | 15.94 (0.01) | ||||||||||||||
| z magnitude | 16.24 (0.008) | 16.25 | 16.24 (0.008) | 16.24 (0.008) | 16.24 (0.02) | ||||||||||||||
| G magnitude | 15.55 (0.002) | 15.58 | 15.55 | 15.55 (0.003) | 15.58 | ||||||||||||||
| BP magnitude | 15.52 (0.002) | 15.51 | 15.51 | ||||||||||||||||
| RP magnitude | 15.66 (0.002) | 15.67 | 15.67 | ||||||||||||||||
| Pan g magnitude | 15.44 (0.003) | ||||||||||||||||||
| Pan r magnitude | 15.71 (0.003) | ||||||||||||||||||
| Pan i magnitude | 15.98 (0.003) | ||||||||||||||||||
| Pan z magnitude | 16.22 (0.005) | ||||||||||||||||||
| Pan y magnitude | 16.38 (0.01) | ||||||||||||||||||
| E(B-V) | 0.003 | ||||||||||||||||||
* Constant surface field
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