Daily Sunspot Evaluation
Observation Sheet Friday, 6 September 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)
- 6
- Number of spots (f)
- 40
- Relative number (R)
- 100
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680906.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 20 | 56E | 88 | |||
| 2 | A – 2 | -28 | 11E | 133 | |||
| 3 | A – 1 | -27 | 07W | 151 | |||
| 4 | J – 1 | -3 | 09W | 153 | |||
| 5 | E – 31 | -16 | 30W | 174 | |||
| 6 | H – 2 | 12 | 48W | 192 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.