Daily Sunspot Evaluation
Observation Sheet Saturday, 12 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)
- 89
- Relative number (R)
- 129
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19840512.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 5 | 1 | 06W | 164 | 09W | 3 | 30 |
| 2 | FKC – 81 | 6 | 06E | 152 | 03E | 2 | 31 |
| 3 | HAX – 2 | -7 | 34W | 192 | 39W | 1 | 43 |
| 4 | AXX – 1 | -13 | 69E | 89 | 66E | - | 32 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.