Daily Sunspot Evaluation
Observation Sheet Monday, 10 April 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)
- 11
- Number of spots (f)
- 80
- Relative number (R)
- 190
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780410.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 3 | 17 | 13E | 339 | 10E | ||
| 2 | ? – 20 | 18 | 69E | 283 | 66E | ||
| 3 | J – 4 | -33 | 47E | 305 | 44E | ||
| 4 | C – 13 | -30 | 24E | 328 | 21E | ||
| 5 | A – 2 | -27 | 04E | 348 | 01E | ||
| 6 | C – 11 | -27 | 13W | 5 | 16W | ||
| 7 | J – 2 | 21 | 80W | 72 | 83W | ||
| 8 | E – 20 | 20 | 40W | 32 | 43W | ||
| 9 | A – 1 | 34 | 53W | 45 | 56W | ||
| 10 | A – 3 | 14 | 14W | 6 | 17W | ||
| 11 | A – 1 | 16 | 01W | 353 | 04W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.