Daily Sunspot Evaluation
Observation Sheet Saturday, 21 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)
- 9
- Number of spots (f)
- 94
- Relative number (R)
- 184
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 17 | 68E | 239 | |||
| 2 | G – 3 | 10 | 44E | 263 | |||
| 3 | J – 1 | 3 | 39E | 270 | |||
| 4 | J – 4 | -10 | 62W | 9 | |||
| 5 | E – 55 | 3 | 35W | 342 | |||
| 6 | C – 18 | 3 | 39W | 344 | |||
| 7 | C – 4 | 8 | 51W | 358 | |||
| 8 | ? – 4 | 16 | 80W | 27 | |||
| 9 | G – 4 | 15 | 54W | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.