Daily Sunspot Evaluation
Observation Sheet Wednesday, 12 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)
- 7
- Number of spots (f)
- 93
- Relative number (R)
- 163
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 24 | 32E | 170 | 29E | ||
| 2 | F – 39 | 18 | 35E | 167 | 32E | ||
| 3 | D – 9 | 16 | 63E | 139 | 60E | ||
| 4 | B – 13 | -19 | 04E | 198 | 01E | ||
| 5 | E – 17 | -22 | 37W | 239 | 40W | ||
| 6 | A – 1 | -22 | 51W | 253 | 54W | ||
| 7 | D – 13 | 19 | 63W | 265 | 66W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.