Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 April 1980
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)
- 6
- Number of spots (f)
- 54
- Relative number (R)
- 114
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800423.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 6 | 23 | 12E | 238 | 11E | 6.5 | |
| 2 | AXX – 1 | 9 | 17E | 233 | 16E | ||
| 3 | BXO – 2 | 15 | 28E | 222 | 27E | 3.5 | |
| 4 | CJE – 7 | -18 | 16W | 266 | 17W | 12 | |
| 5 | CJO – 3 | -30 | 11E | 239 | 10E | 4 | |
| 6 | FKC – 35 | -13 | 12E | 238 | 11E | 14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.