Daily Sunspot Evaluation
Observation Sheet Friday, 22 January 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)
- 4
- Number of spots (f)
- 32
- Relative number (R)
- 72
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880122.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 2 | -33 | 58W | 34 | 59W | 1 | 10 |
| 2 | CAO – 3 | -39 | 47W | 23 | 48W | 6 | 11 |
| 3 | EKC – 13 | -20 | 32W | 8 | 33W | 15 | 12 |
| 4 | DAE – 14 | -30 | 08W | 344 | 09W | 11 | 14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.