Daily Sunspot Evaluation
Observation Sheet Saturday, 12 March 1960
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)
- 33
- Relative number (R)
- 113
- Observer
- SG
- Reading
- all checks consistent
- File
- 19600312.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 15 | 8E | ||||
| 2 | A – 1 | 13 | 44E | ||||
| 3 | A – 1 | -44 | 5W | ||||
| 4 | C – 10 | -8 | 15W | ||||
| 5 | B – 3 | 1 | 29W | ||||
| 6 | B – 9 | 1 | 19W | ||||
| 7 | J – 1 | 24 | 22W | ||||
| 8 | B – 6 | 25 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.