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Sunspot Relative Numbers

derived from Sunspot Drawings at Kanzelhöhe Observatory

Select the date and press the search button

Start Date	End Date	Data Selection
		Groups north	Spots north	Groups south	Spots south	Tiny Groups	Total Number	Observing Quality	North reduced	South reduced	Total reduced	Observer	as csv list

The dataset is going back to 1944.
Between 1967 and 1969 there were data gaps due to building activities at the observatory.

Sunspots

The dataset is starting in May 1944
Up to now only the first years are available, data is added continuously.

Start Date	End Date	Data Selection
		Latitude	Central Meridian Distance	Spot Type	Greeenwich Number	NOAA AR Number	as csv list

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