Wolf number
Noun
Meaning
Wolf number (plural Wolf numbers)
A measure of the number of sunspots and groups of sunspots present on the surface of the Sun.
Synonyms: sunspot number, Zürich number
Noun
Wolf number (plural Wolf numbers)
A measure of the number of sunspots and groups of sunspots present on the surface of the Sun.
Synonyms: sunspot number, Zürich number