Daily Sunspot Evaluation
Observation Sheet Tuesday, 17 November 1970
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)
- 117
- Relative number (R)
- 177
- Observer
- SM
- Reading
- all checks consistent
- File
- 19701117.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 15 | 0 | 358 | |||
| 2 | G – 6 | 8 | 02E | 356 | |||
| 3 | C – 39 | 5 | 18E | 340 | |||
| 4 | D – 15 | -10 | 05W | 3 | |||
| 5 | A – 4 | -8 | 62W | 60 | |||
| 6 | F – 49 | 16 | 37W | 35 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.