Daily Sunspot Evaluation
Observation Sheet Saturday, 12 March 1988
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)
- 3
- Number of spots (f)
- 12
- Relative number (R)
- 42
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880312.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 2 | 31 | 55W | 94 | 53W | 1.5 | 46 |
| 2 | AKX – 2 | 22 | 75E | 324 | 73E | 4 | 47 |
| 3 | ? – 8 | 48 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.