Daily Sunspot Evaluation
Observation Sheet Sunday, 13 August 1978
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)
- 7
- Number of spots (f)
- 64
- Relative number (R)
- 134
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780813.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 8 | 44 | 04E | 134 | 02E | ||
| 2 | C – 6 | 46 | 66E | 72 | 64E | ||
| 3 | E – 25 | -27 | 34W | 172 | 36W | ||
| 4 | D – 9 | -34 | 48W | 187 | 51W | ||
| 5 | C – 5 | -22 | 66W | 204 | 68W | ||
| 6 | A – 7 | 16 | 38W | 177 | 41W | ||
| 7 | A – 4 | 22 | 53W | 191 | 55W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.