Daily Sunspot Evaluation
Observation Sheet Tuesday, 7 July 1970
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)
- 99
- Relative number (R)
- 189
- Observer
- MA
- Reading
- all checks consistent
- File
- 19700707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 12 | 12 | 06E | 309 | |||
| 2 | A – 1 | 22 | 40E | 275 | |||
| 3 | H – 8 | 18 | 50E | 265 | |||
| 4 | E – 26 | -9 | 02W | 317 | |||
| 5 | C – 5 | -20 | 37W | 352 | |||
| 6 | G – 12 | -8 | 46W | 1 | |||
| 7 | D – 14 | -4 | 61W | 16 | |||
| 8 | H – 16 | 9 | 51W | 6 | |||
| 9 | B – 5 | 15 | 22W | 337 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.