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Table 1
Specifications of Kodaikanal white-light images.
| Parameter | Description | ||
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| Observation period | 1904 to 2011 | ||
| Telescope | 15 cm objective with f/15 beam | ||
| Original storage | Plates/films | ||
| Total number of plates | 31800 (1904 to 2011) | ||
| Average number of plates per year | 290 | ||
| Calibration period | 1921 to 2011 | ||
| Final image size | 4k × 4k | ||
| Pixel scale | 0.62′′ | ||
| Available image format | FITS and JPG | ||
| Raw images available at | http://kso.iiap. res.in | ||
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