SDSS J124535.63+423824.6
All names: Ton 124, WDJ124535.62+423824.68, GALEX J124535.6+423823, USNO-B1.0 1326-00289604, SDSS J124535.62+423824.5, J1245+4238, LAMOST J124535.63+423824.1, Gaia EDR3 1540371883066128768, Gaia DR2 1540371883066128768, SDSS J124535.64+423824.1, SDSS J124535.62+423824.6, SDSS J124535.63+423824.6, Gaia DR3 1540371883066128768
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 45 35.65 (0.05) | 12 45 35.62 | 12 45 35.65 (0.06) | 12 45 35.65 | 12 45 35.62 (0.05) | 12 45 35.65 | 12 45 35.63 | ||||||||
| Declination | 42 38 23.81 (0.04) | 42 38 24.55 | 42 38 23.84 (0.04) | 42 38 23.81 | 42 38 24.68 (0.04) | 42 38 23.84 | 42 38 24.58 | ||||||||
| Spectral type | He-DA | DA | DC | DC | DC | DC | DC | DC | |||||||
| Effective temperature | [K] | 8885.0 (64) | 8944.0 (51) | 9450.0 | 9249.0 | 8772.0 (76) | 10120.0 (51) | ||||||||
| log(g) | [cgs] | 8.06 (0.01) | 8.08 (0.01) | 8.32 | 8.24 | 8.07 (0.01) | 9.41 (0.4) | ||||||||
| Mass | [M☉] | 0.617 (0.01) | 0.625 (0.01) | 0.798 | 0.729 | 0.622 (0.01) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.9800 | 1.1260 | 1.0780 | |||||||||||
| log(H/He) | -4.0 | -4.0 | |||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| log(N/He) | |||||||||||||||
| log(O/He) | |||||||||||||||
| log(Na/He) | |||||||||||||||
| log(Mg/He) | |||||||||||||||
| log(Al/He) | |||||||||||||||
| log(Si/He) | |||||||||||||||
| log(P/He) | |||||||||||||||
| log(S/He) | |||||||||||||||
| log(Cl/He) | |||||||||||||||
| log(Sc/He) | |||||||||||||||
| log(Ti/He) | |||||||||||||||
| log(V/He) | |||||||||||||||
| log(Cr/He) | |||||||||||||||
| log(Mn/He) | |||||||||||||||
| log(Fe/He) | |||||||||||||||
| log(Co/He) | |||||||||||||||
| log(Ni/He) | |||||||||||||||
| log(Cu/He) | |||||||||||||||
| log(Zn/He) | |||||||||||||||
| log(Ga/He) | |||||||||||||||
| log(Ge/He) | |||||||||||||||
| log(Sr/He) | |||||||||||||||
| Parallax | [mas] | 14.10 (0.07) | 14.12 (0.1) | 14.12 (0.1) | 14.10 | 14.10 (0.07) | 14.12 (0.1) | ||||||||
| Distance | [pc] | 70.92 (0.4) | 70.82 (0.5) | 70.84 (0.5) | 70.92 | 70.92 (0.4) | 70.84 (0.5) | ||||||||
| Composition | He | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 18.94541026 (0.06) | 19.07630237 (0.1) | 18.945 (0.06) | 19.07630237 | ||||||||||
| Proper motion (declination) | [mas/yr] | -53.88497311 (0.05) | -54.08889794 (0.1) | -53.885 (0.05) | -54.08889794 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 17.40 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 17.10 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 17.30 (0.009) | 17.30 (0.009) | 17.30 (0.009) | 17.30 (0.009) | 17.32 (0.02) | ||||||||||
| g magnitude | 17.11 (0.004) | 17.11 (0.004) | 17.11 (0.004) | 17.14 (0.01) | |||||||||||
| r magnitude | 17.18 (0.005) | 17.18 (0.005) | 17.18 (0.005) | 17.20 (0.04) | |||||||||||
| i magnitude | 17.28 (0.006) | 17.28 (0.006) | 17.28 (0.006) | 17.28 (0.01) | |||||||||||
| z magnitude | 17.45 (0.02) | 17.45 (0.01) | 17.45 (0.01) | 17.45 (0.02) | |||||||||||
| G magnitude | 17.09 (0.004) | 17.11 | 17.09 | 17.09 (0.003) | 17.11 | ||||||||||
| BP magnitude | 17.16 (0.004) | 17.13 | 17.13 | ||||||||||||
| RP magnitude | 16.96 (0.008) | 16.95 | 16.95 | ||||||||||||
| Pan g magnitude | 17.13 (0.006) | 17.13 (0.005) | |||||||||||||
| Pan r magnitude | 17.16 (0.005) | 17.16 (0.004) | |||||||||||||
| Pan i magnitude | 17.29 (0.003) | 17.29 (0.004) | |||||||||||||
| Pan z magnitude | 17.43 (0.004) | 17.43 (0.004) | |||||||||||||
| Pan y magnitude | 17.52 (0.009) | 17.52 (0.009) | |||||||||||||
| E(B-V) | 0.003 | ||||||||||||||
* Constant surface field
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