Daily Sunspot Evaluation
Observation Sheet Tuesday, 15 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)
- 6
- Number of spots (f)
- 24
- Relative number (R)
- 84
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780815.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 6 | 45 | 39E | 71 | 39E | ||
| 2 | B – 3 | 39 | 62E | 48 | 62E | ||
| 3 | ? – 1 | -16 | 76E | 34 | 76E | ||
| 4 | D – 11 | -28 | 62W | 172 | 62W | ||
| 5 | A – 2 | 10 | 34W | 144 | 34W | ||
| 6 | ? – 1 | 25 | 15W | 125 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.