Daily Sunspot Evaluation
Observation Sheet Tuesday, 30 September 1958
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)
- 16
- Number of spots (f)
- 104
- Relative number (R)
- 264
- Observer
- AK
- Reading
- all checks consistent
- File
- 19580930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 26 | 30 | 15E | ||||
| 2 | ? – 1 | 18 | 37E | ||||
| 3 | D – 16 | 9 | 6E | ||||
| 4 | B – 6 | -8 | 68E | ||||
| 5 | A – 3 | -14 | 48E | ||||
| 6 | B – 2 | -14 | 20E | ||||
| 7 | C – 21 | -10 | 2W | ||||
| 8 | C – 7 | -22 | 10W | ||||
| 9 | G – 8 | -18 | 25W | ||||
| 10 | J – 2 | -10 | 22W | ||||
| 11 | G – 2 | -6 | 45W | ||||
| 12 | A – 1 | 14 | 66W | ||||
| 13 | H – 3 | 18 | 19W | ||||
| 14 | J – 1 | 33 | 73W | ||||
| 15 | A – 1 | 23 | 22W | ||||
| 16 | A – 4 | 19 | 11W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.