Daily Sunspot Evaluation
Observation Sheet Monday, 27 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)
- 7
- Number of spots (f)
- 28
- Relative number (R)
- 98
- Observer
- AK
- Reading
- all checks consistent
- File
- 19610327.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 12 | -10 | 60E | ||||
| 2 | ? – 4 | -19 | 73E | ||||
| 3 | A – 2 | -10 | 9W | ||||
| 4 | ? – 2 | 3 | 74W | ||||
| 5 | ? – 1 | 9 | 79W | ||||
| 6 | H – 3 | 8 | 17W | ||||
| 7 | B – 4 | 6 | 2W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.