Daily Sunspot Evaluation
Observation Sheet Saturday, 12 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)
- 54
- Relative number (R)
- 124
- Observer
- ED
- Reading
- all checks consistent
- File
- 19780812.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 14 | 19E | 133 | 16E | ||
| 2 | E – 33 | -27 | 19W | 171 | 22W | ||
| 3 | B – 3 | -34 | 33W | 185 | 36W | ||
| 4 | A – 1 | -31 | 54W | 206 | 57W | ||
| 5 | A – 1 | -21 | 50W | 202 | 53W | ||
| 6 | B – 6 | 15 | 25W | 177 | 28W | ||
| 7 | B – 8 | 18 | 07W | 159 | 10W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.