Daily Sunspot Evaluation
Observation Sheet Saturday, 26 June 1971
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)
- 64
- Relative number (R)
- 124
- Observer
- MA
- Reading
- all checks consistent
- File
- 19710626.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | 15 | 20E | 303 | |||
| 2 | E – 23 | 15 | 29E | 294 | |||
| 3 | C – 8 | -16 | 05W | 328 | |||
| 4 | D – 15 | -22 | 24W | 347 | |||
| 5 | B – 8 | 7 | 20W | 343 | |||
| 6 | A – 4 | 11 | 18W | 341 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.