Daily Sunspot Evaluation
Observation Sheet Thursday, 2 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)
- 11
- Number of spots (f)
- 163
- Relative number (R)
- 273
- Observer
- FA
- Reading
- all checks consistent
- File
- 19700702.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 14 | 9 | 20E | 2 | |||
| 2 | ? – 5 | 11 | 70E | 312 | |||
| 3 | D – 9 | 9 | 68E | 314 | |||
| 4 | E – 36 | -3 | 08E | 14 | |||
| 5 | H – 34 | -9 | 24E | 358 | |||
| 6 | C – 16 | -8 | 25W | 47 | |||
| 7 | B – 6 | -10 | 34W | 56 | |||
| 8 | G – 5 | 9 | 55W | 77 | 1 | ||
| 9 | J – 3 | 14 | 35W | 57 | |||
| 10 | E – 29 | 21 | 21W | 43 | |||
| 11 | G – 6 | 26 | 09W | 31 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.