Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 October 1966
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)
- 5
- Number of spots (f)
- 49
- Relative number (R)
- 99
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19661019.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | -17 | 18E | 136 ⚠ | |||
| 2 | H – 1 | 6 | 36W | 250 ⚠ | |||
| 3 | C – 9 | 14 | 17W | 241 | |||
| 4 | E – 32 | 21 | 22W | 246 | |||
| 5 | B – 5 | 24 | 9W | 233 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.