Open Access
Table 3.
Chromospheric age errors as a function of time-span coverage.
| Minimum time-span (yr) | 〈AgeHK – AgeISO 〉 (Gyr) (Gyr) | 〈(AgeHK – AgeISO)/AgeISO〉 – | Number of stars |  (Gyr) |
 (Gyr) |
|---|---|---|---|---|---|
| ≥5 | –0.4 ± 0.9 | 16 ± 6 % | 33 | 2.6 | 9.0 |
| ≥7 | –0.4 ± 1.0 | 15 ± 4 % | 23 | 4.2 | 9.0 |
| ≥10 | –0.5 ± 1.0 | 16 ± 4 % | 14 | 4.2 | 9.0 |
| ≥13 | +0.0 ± 0.9 | 13 ± 3 % | 6 | 4.8 | 9.0 |
Notes. The AC outliers HIP15527 and HIP44713 were removed from this analysis.
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