Supporting amateur astronomers since 1890
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British Astronomical Association Supporting amateur astronomers since 1890 |
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| alf Ori: Semi-Regular Variable Star | |||
| Total Number of Spectra: | 159 | ||
| First Spectrum: | JD 2457453.387720 | \ | 5 Mar 2016 21:18:19.008000 UT |
| Latest Spectrum: | JD 2460738.694317 | \ | 4 Mar 2025 04:39:48.988800 UT |
| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 8 | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2024 | 23 | 3 | 0 | 6 | 2 | 1 | 0 | 0 | 0 | 0 | 5 | 4 | 2 |
| 2023 | 16 | 0 | 4 | 3 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 |
| 2022 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2021 | 29 | 4 | 8 | 5 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 5 |
| 2020 | 65 | 24 | 19 | 10 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 |
| 2019 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
| 2018 | 5 | 1 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2017 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| 2016 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |