Daily Sunspot Evaluation
Observation Sheet Wednesday, 1 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)
- 96
- Relative number (R)
- 186
- Observer
- HA
- Reading
- all checks consistent
- File
- 19700701.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 13 | 8 | 35E | 0 | |||
| 2 | ? – 1 | 11 | 83E | 312 | |||
| 3 | E – 17 | -2 | 21E | 14 | |||
| 4 | ? – 2 | -9 | 78E | 317 | |||
| 5 | H – 7 | -8 | 38E | 357 | |||
| 6 | C – 12 | -6 | 12W | 47 | |||
| 7 | D – 11 | -10 | 19W | 54 | |||
| 8 | B – 2 | 3 | 42W | 79 | |||
| 9 | E – 31 | 23 | 05W | 40 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.