Daily Sunspot Evaluation
Observation Sheet Monday, 1 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)
- 13
- Number of spots (f)
- 174
- Relative number (R)
- 304
- Observer
- SG
- Reading
- all checks consistent
- File
- 19580901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 7 | 26 | 6E | ||||
| 2 | C – 8 | 35 | 15E | ||||
| 3 | B – 7 | 18 | 33E | ||||
| 4 | A – 3 | 10 | 58E | ||||
| 5 | A – 1 | -8 | 50E | ||||
| 6 | ? – 1 | -18 | 73E | ||||
| 7 | ? – 1 | -31 | 75E | ||||
| 8 | C – 4 | -19 | 48E | ||||
| 9 | A – 1 | -23 | 11E | ||||
| 10 | F – 65 | -7 | 10W | ||||
| 11 | H – 1 | -10 | 26W | ||||
| 12 | C – 42 | 15 | 8W | ||||
| 13 | E – 33 | 26 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.