Daily Sunspot Evaluation
Observation Sheet Thursday, 1 October 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)
- 44
- Relative number (R)
- 114
- Observer
- HA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19701001.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 22 | 07E | 262 ⚠ | |||
| 2 | B – 7 | 16 | 24E | 245 ⚠ | |||
| 3 | A – 2 | 20 | 70E | 189 | |||
| 4 | G – 18 | -8 | 20W | 279 | |||
| 5 | A – 1 | -21 | 69W | 329 | |||
| 6 | G – 7 | 11 | 65W | 321 | |||
| 7 | C – 8 | 22 | 60W | 318 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.