How to access DigiSun application developed at the WDC-SILSO (Brussels) for tests ?

Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 12/28/2022 - 23:47

DigiSun application developed at the
WDC-SILSO (Brussels) for the measurements of individual sunspot groups in sunspot drawings.
This tool will lead to a new detailed sunspot catalog spanning the last 70 years, which is currently
under construction

https://arxiv.org/ftp/arxiv/papers/1407/1407.3231.pdf

page 73/80

1
Revisiting the Sunspot Number
A 400-year perspective on the solar cycle
Frédéric Clette
World Data Center SILSO, Observatoire Royal de Belgique, Brussels, Belgium
Leif Svalgaard
W.W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, CA, USA
José M. Vaquero
Departamento de Física, Universidad de Extremadura, Mérida, Spain
Edward W. Cliver
National Solar Observatory, Sunspot, NM, USA

 

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Contacted Royal Observatory of Belgium

- no reply

 

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not sure how to contact WDC-SILSO (Brussels)

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