Daily Sunspot Evaluation
Observation Sheet Sunday, 6 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)
- 8
- Number of spots (f)
- 64
- Relative number (R)
- 144
- Observer
- AT
- Reading
- all checks consistent
- File
- 19681006.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 4 | 15 | 05E | 101 | |||
| 2 | A – 7 | 17 | 12E | 96 | |||
| 3 | B – 9 | 19 | 21E | 85 | |||
| 4 | E – 26 | 4 | 01E | 105 | |||
| 5 | A – 1 | -18 | 04W | 110 | |||
| 6 | J – 1 | -17 | 77W | 183 | |||
| 7 | D – 9 | 25 | 48W | 154 | |||
| 8 | B – 7 | 15 | 06W | 112 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.