Daily Sunspot Evaluation
Observation Sheet Monday, 4 October 1965
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)
- 4
- Number of spots (f)
- 41
- Relative number (R)
- 81
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19651004.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 23 | 21E | 177 | |||
| 2 | A – 3 | -35 | 24E | 174 | |||
| 3 | G – 4 | -16 | 38W | 276 ⚠ | |||
| 4 | F – 32 | 24 | 21W | 219 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.