Daily Sunspot Evaluation
Observation Sheet Friday, 7 July 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)
- 36
- Relative number (R)
- 116
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 27 | 70E | 199 | 67E | ||
| 2 | ? – 4 | -17 | 68E | 201 | 65E | ||
| 3 | B – 4 | -19 | 29E | 240 | 26E | ||
| 4 | A – 2 | -24 | 10E | 259 | 09E | ||
| 5 | D – 17 | -27 | 54W | 323 | 57W | ||
| 6 | C – 3 | 17 | 31W | 300 | 34W | ||
| 7 | D – 3 | 27 | 60W | 329 | 63W | ||
| 8 | H – 1 | 19 | 16W | 285 | 19W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.