Daily Sunspot Evaluation
Observation Sheet Thursday, 26 April 1984
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)
- 100
- Relative number (R)
- 140
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19840426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 9 | -11 | 30W | 38 | 32W | 4 | 24 |
| 2 | EXC – 52 | -14 | 18E | 350 | 16E | 11.75 | 26 |
| 3 | FKC – 37 | -14 | 32E | 336 | 30E | 14 | 27 |
| 4 | AXX – 2 | -12 | 59E | 309 | 57E | - | 29 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.