Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 October 1968
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)
- 29
- Relative number (R)
- 99
- Observer
- AT
- Reading
- all checks consistent
- File
- 19681001.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 16 | 80E | 94 | |||
| 2 | H – 5 | -16 | 04W | 178 | |||
| 3 | C – 8 | 12 | 80W | 254 | |||
| 4 | A – 3 | 11 | 26W | 200 | |||
| 5 | J – 3 | 17 | 53W | 227 | |||
| 6 | H – 6 | 14 | 18W | 192 | |||
| 7 | B – 3 | 21 | 17W | 191 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.