0124617 - ASU-R 20000073 RIV NL eng J - Journal Article
Letfus, Vojtěch
Relative sunspot numbers in the first half of eighteenth century.
Solar Physics. Roč. 194, č. 1 (2000), s. 175-784. ISSN 0038-0938. E-ISSN 1573-093X
R&D Projects: GA AV ČR KSK1003601
Institutional research plan: CEZ:AV0Z1003909
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 2.095, year: 2000

We revised relative sunspot numbers in the time interval 1700-1748 for which Wolf derived their annual means. To enlarge the number of daily relative sunspot numbers we used the nonlinear, two-step interpolation method derived earlier. However only for 26 years from the total number of 49 years was it possible to derive annual relative sunspot numbers.
Permanent Link: http://hdl.handle.net/11104/0022876