Daily Sunspot Evaluation
Observation Sheet Wednesday, 4 April 1979
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)
- 9
- Number of spots (f)
- 133
- Relative number (R)
- 223
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790404.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 13 | 02E | 290 | 01E | 208 | |
| 2 | B – 1 | -8 | 09E | 283 | 08E | 201 | |
| 3 | B – 1 | -25 | 84E | 208 | 83E | 207 | |
| 4 | A – 5 | -36 | 11W | 303 | 12W | 198 | |
| 5 | C – 7 | -47 | 08W | 300 | 09W | 197 | |
| 6 | E – 106 | -25 | 24W | 316 | 25W | 192 | |
| 7 | A – 2 | -32 | 27W | 319 | 28W | 206 | |
| 8 | B – 9 | -22 | 59W | 351 | 60W | 209 | |
| 9 | A – 1 | -16 | 73W | 5 | 74W | 202 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.