Daily Sunspot Evaluation
Observation Sheet Friday, 11 May 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)
- 76
- Relative number (R)
- 116
- Observer
- HG
- Reading
- all checks consistent
- File
- 19840511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAX – 2 | 1 | 04E | 164 | 04E | 2 | 82 |
| 2 | FKC – 70 | 6 | 16E | 152 | 16E | 19.5 | 84 |
| 3 | ? – 2 | -12 | 84W | 249 | 84W | 7 | 85 |
| 4 | AXX – 2 | -6 | 23W | 191 | 23W | 9.5 | 84 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.