Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:sunspot_number
|
| gptkbp:alsoKnownAs |
gptkb:Wolf_number
|
| gptkbp:form |
R = k (10g + s)
|
| gptkbp:g |
number of sunspot groups
|
| https://www.w3.org/2000/01/rdf-schema#label |
Zurich number
|
| gptkbp:introduced |
gptkb:Rudolf_Wolf
|
| gptkbp:introducedIn |
1848
|
| gptkbp:kraj |
observer correction factor
|
| gptkbp:maintainedBy |
gptkb:Zurich_Observatory
|
| gptkbp:measures |
sunspot activity
|
| gptkbp:R |
gptkb:Zurich_number
|
| gptkbp:replacedBy |
International Sunspot Number
|
| gptkbp:s |
number of individual sunspots
|
| gptkbp:usedFor |
tracking solar cycles
|
| gptkbp:usedIn |
solar physics
|
| gptkbp:bfsParent |
gptkb:Wolf_number
|
| gptkbp:bfsLayer |
6
|