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Table 1.
Overview of Hα observations with the Chromospheric Telescope in 2012–2020.
| Year | Number of observing days |
|---|---|
| 2012 | 146 (†) |
| 2013 | 210 |
| 2014 | 172 |
| 2015 | 115 |
| 2016 | 102 |
| 2017 | 76 |
| 2018 | 141 |
| 2019 | 38 |
| 2020 | 56 (⋆) |
Notes. (†)Starting 13 April. (⋆)Until 2 September.
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