Daily Sunspot Evaluation
Observation Sheet Thursday, 14 April 1983
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)
- 26
- Relative number (R)
- 86
- Observer
- HM
- Reading
- all checks consistent
- File
- 19830414.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 3 | 20 | 51E | 268 | 48E | 5 | 90 |
| 2 | ? – 1 | -10 | 82W | 41 | 85W | 82 | |
| 3 | EAI – 6 | -16 | 39W | 358 | 42W | 6.5 | 84 |
| 4 | AXX – 3 | -7 | 23W | 342 | 26W | 1.5 | 85 |
| 5 | DAO – 5 | -9 | 28E | 291 | 25E | 5 | 89 |
| 6 | DAI – 8 | -8 | 33E | 286 | 30E | 7.5 | 88 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.