Daily Sunspot Evaluation
Observation Sheet Sunday, 26 March 1961
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)
- 5
- Number of spots (f)
- 28
- Relative number (R)
- 78
- Observer
- AB
- Reading
- all checks consistent
- File
- 19610326.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 7 | 7 | 12E | ||||
| 2 | E – 7 | -15 | 74E | ||||
| 3 | D – 8 | 4 | 66W | ||||
| 4 | J – 2 | 9 | 63W | ||||
| 5 | H – 4 | 8 | 3W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.