Daily Sunspot Evaluation
Observation Sheet Friday, 29 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)
- 5
- Number of spots (f)
- 10
- Relative number (R)
- 60
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880129.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 24 | 28W | 322 ⚠ | 29W | 2 | 43 |
| 2 | BXO – 4 | 12 | 27E | 217 | 26E | 4 | 22 |
| 3 | DAO – 2 | 18 | 1E | 123 ⚠ | 20E | 6 | 23 |
| 4 | ARX – 1 | -14 | 60W | 304 | 01W | 0.25 | 21 |
| 5 | ARX – 1 | -30 | 23W | 267 | 24W | 0.3 | 17 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.