Daily Sunspot Evaluation
Observation Sheet Tuesday, 30 September 1969
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)
- 28
- Relative number (R)
- 98
- Observer
- TY
- Reading
- counts consistent, some coordinates doubtful
- File
- 19690930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | -13 | 40E | 10 | |||
| 2 | A – 1 | -13 | 27E | 23 | |||
| 3 | H – 5 | -12 | 07W | 57 | |||
| 4 | H – 1 | -13 | 31W | 81 | |||
| 5 | G – 3 | -10 | 51W | 401 ⚠ | |||
| 6 | H – 10 | 7 | 41W | 94 | |||
| 7 | H – 2 | 11 | 47W | 67 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.