Daily Sunspot Evaluation
Observation Sheet Thursday, 5 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)
- 5
- Number of spots (f)
- 15
- Relative number (R)
- 65
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19840405.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 20 | 29W | 313 | 30W | 15 | 65 |
| 2 | DAO – 3 | -10 | 65W | 349 | 66W | 75 | 60 |
| 3 | EKO – 8 | -14 | 47W | 331 | 48W | 12 | 62 |
| 4 | ARX – 1 | -16 | 30W | 314 | 31W | 05 | 64 |
| 5 | AXX – 2 | -10 | 16E | 268 | 15E | 15 | 66 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.