Daily Sunspot Evaluation
Observation Sheet Thursday, 6 August 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)
- 6
- Number of spots (f)
- 57
- Relative number (R)
- 117
- Observer
- FA
- Reading
- all checks consistent
- File
- 19700806.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 11 | 21E | 258 | |||
| 2 | E – 21 | 13 | 44E | 235 | |||
| 3 | A – 2 | 17 | 57E | 222 | |||
| 4 | B – 9 | -7 | 30E | 249 | |||
| 5 | J – 1 | -9 | 54W | 333 | |||
| 6 | C – 22 | 14 | 16W | 295 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.