Ton 39
All names: SDSS J104042.21+262748.8, SDSS J104042.20+262748.3, SDSS J104042.21+262748.33, Gaia DR2 724971173687211520, Gaia EDR3 724971173687211520, GALEX J104042.1+262748, [BGK2006] J104042.21+262748.8, Ton 39, SDSS J104042.20+262748.8, SDSS J104042.21+262748.3, Gaia DR3 724971173687211520
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 40 42.20 (0.09) | 10 40 42.21 | 10 40 42.20 (0.1) | 10 40 42.20 | 10 40 42.21 (0.09) | ||||||
| Declination | 26 27 48.09 (0.09) | 26 27 48.82 | 26 27 48.12 (0.09) | 26 27 48.09 | 26 27 49.05 (0.09) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 13716.0 | 17648.0 (68) | 16355.0 (355) | |||||||
| log(g) | [cgs] | 7.44 | 7.72 (0.01) | 7.62 (0.03) | |||||||
| Mass | [M☉] | 0.349 | 0.507 (0.004) | 0.427 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.1316 | |||||||||
| 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] | 5.84 (0.1) | 5.98 (0.1) | 5.84 | 5.84 (0.1) | ||||||
| Distance | [pc] | 171.35 (3) | 167.16 (3) | 171.35 | 171.35 (3) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.110506874 (0.1) | -6.531466663 (0.2) | -4.111 (0.1) | |||||||
| Proper motion (declination) | [mas/yr] | -59.85855493 (0.1) | -58.895605 (0.3) | -59.859 (0.1) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.20 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 16.80 (0.007) | 16.81 (0.02) | 16.79 (0.007) | ||||||||
| g magnitude | 16.61 (0.004) | 16.63 (0.02) | 16.61 (0.004) | ||||||||
| r magnitude | 16.96 (0.005) | 16.95 (0.02) | 16.96 (0.005) | ||||||||
| i magnitude | 17.20 (0.006) | 17.21 (0.01) | 17.21 (0.006) | ||||||||
| z magnitude | 17.48 (0.02) | 17.48 (0.02) | 17.49 (0.02) | ||||||||
| G magnitude | 16.79 (0.005) | 16.81 | 16.79 | 16.79 (0.003) | |||||||
| BP magnitude | 16.75 (0.005) | 16.72 | |||||||||
| RP magnitude | 16.91 (0.009) | 16.91 | |||||||||
| Pan g magnitude | 16.66 (0.004) | ||||||||||
| Pan r magnitude | 16.96 (0.008) | ||||||||||
| Pan i magnitude | 17.23 (0.005) | ||||||||||
| Pan z magnitude | 17.43 (0.01) | ||||||||||
| Pan y magnitude | 17.56 (0.03) | ||||||||||
| E(B-V) | 0.011 | ||||||||||
* Constant surface field
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