Daily Sunspot Evaluation
Observation Sheet Wednesday, 27 October 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)
- 7
- Number of spots (f)
- 39
- Relative number (R)
- 109
- Observer
- MA
- Reading
- all checks consistent
- File
- 19711027.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 10 | 12 | 06E | 130 | |||
| 2 | H – 2 | 12 | 58E | 78 | |||
| 3 | ? – 2 | -6 | 76E | 60 | |||
| 4 | A – 3 | -7 | 11E | 125 | |||
| 5 | H – 1 | -5 | 04E | 132 | |||
| 6 | F – 13 | 8 | 75W | 211 | |||
| 7 | G – 8 | 18 | 54W | 190 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.