Daily Sunspot Evaluation
Observation Sheet Sunday, 27 September 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)
- 7
- Number of spots (f)
- 54
- Relative number (R)
- 124
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19700927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 24 | 43E | 269 | |||
| 2 | J – 3 | 16 | 70E | 242 | |||
| 3 | H – 4 | -7 | 30E | 282 | |||
| 4 | A – 2 | -9 | 41E | 271 | |||
| 5 | C – 22 | 13 | 12W | 324 | |||
| 6 | E – 7 | 21 | 74W | 26 | |||
| 7 | D – 15 | 23 | 09W | 321 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.