Daily Sunspot Evaluation
Observation Sheet Friday, 2 September 1955
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 8
- Number of spots (f)
- 24
- Relative number (R)
- 104
- Observer
- FY
- Reading
- all checks consistent
- File
- 19550902.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 5 | 0.52 | 72 | |
| 2 | B – 6 | 0.73 | 74 | |
| 3 | J – 1 | 0.91 | 85 | |
| 4 | J – 1 | 0.86 | 95 | |
| 5 | B – 5 | 0.93 | 95 | |
| 6 | J – 2 | 0.92 | 137 | |
| 7 | A – 1 | 0.64 | 158 | |
| 8 | C – 3 | 0.52 | 232 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.