Daily Sunspot Evaluation
Observation Sheet Friday, 26 June 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)
- 61
- Relative number (R)
- 171
- Observer
- SM
- Reading
- all checks consistent
- File
- 19700626.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 10 | 8 | 0 | 101 | |||
| 2 | A – 4 | 22 | 02E | 99 | |||
| 3 | B – 6 | 23 | 10E | 91 | |||
| 4 | B – 2 | 11 | 13E | 88 | |||
| 5 | D – 9 | 23 | 64E | 37 | |||
| 6 | A – 5 | 4 | 27E | 74 | |||
| 7 | B – 7 | -7 | 54E | 47 | |||
| 8 | B – 4 | -12 | 16W | 117 | |||
| 9 | A – 8 | -13 | 62W | 163 | |||
| 10 | A – 5 | -4 | 45W | 146 | |||
| 11 | J – 1 | 19 | 61W | 162 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.