Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 October 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)
- 133
- Relative number (R)
- 193
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701028.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 38 | 15 | 02E | 261 | |||
| 2 | F – 71 | 19 | 18E | 245 | |||
| 3 | J – 3 | -12 | 67E | 196 | |||
| 4 | A – 3 | 13 | 52W | 315 | |||
| 5 | H – 14 | 15 | 35W | 298 | |||
| 6 | B – 4 | 19 | 21W | 284 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.