Daily Sunspot Evaluation
Observation Sheet Friday, 10 April 1992
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)
- 24
- Relative number (R)
- 74
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920410.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 3 | 7 | 24W | 198 | 27W | 2 | 150 |
| 2 | CKI – 6 | -7 | 30W | 204 | 33W | 7 | 150 |
| 3 | AX – 1 | -12 | 24W | 198 | 27W | - | 159 |
| 4 | HS – 2 | -16 | 29E | 159 ⚠ | 21E | 3 | 156 |
| 5 | DKC – 12 | -15 | 66E | 108 | 63E | 10 | 158 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.