Daily Sunspot Evaluation
Observation Sheet Monday, 24 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)
- 8
- Number of spots (f)
- 75
- Relative number (R)
- 155
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780424.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 23 | 01E | 167 | 02W | ||
| 2 | ? – 5 | -21 | 02E | 166 | 01W | ||
| 3 | A – 4 | -32 | 19W | 187 | 22W | ||
| 4 | B – 5 | -32 | 28W | 196 | 31W | ||
| 5 | J – 1 | -46 | 70W | 238 | 73W | ||
| 6 | C – 7 | 17 | 47W | 215 | 50W | ||
| 7 | C – 19 | 15 | 17W | 185 | 20W | ||
| 8 | E – 29 | 21 | 20W | 188 | 23W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.