Daily Sunspot Evaluation
Observation Sheet Friday, 27 October 1972
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)
- 57
- Relative number (R)
- 127
- Observer
- HM
- Reading
- all checks consistent
- File
- 19721027.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 2 | 62E | 285 | |||
| 2 | F – 41 | -13 | 34E | 313 | |||
| 3 | B – 4 | -13 | 11E | 336 | |||
| 4 | C – 5 | -16 | 00 | 349 | |||
| 5 | J – 3 | -9 | 04W | 351 | |||
| 6 | H – 1 | -14 | 71W | 58 | |||
| 7 | A – 2 | -5 | 57W | 44 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.