Daily Sunspot Evaluation
Observation Sheet Wednesday, 25 March 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)
- 11
- Number of spots (f)
- 109
- Relative number (R)
- 219
- Observer
- SK
- Reading
- all checks consistent
- File
- 19700325.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 25 | 14 | 13E | 237 | |||
| 2 | B – 2 | 22 | 27E | 223 | |||
| 3 | J – 2 | -1 | 66E | 184 | |||
| 4 | J – 1 | -16 | 54W | 304 | |||
| 5 | C – 13 | -7 | 22W | 272 | |||
| 6 | A – 1 | -7 | 30W | 280 | |||
| 7 | C – 20 | -3 | 13W | 263 | |||
| 8 | ? – 1 | 16 | 90W | 340 | |||
| 9 | C – 33 | 17 | 07W | 257 | |||
| 10 | G – 6 | 11 | 04W | 254 | |||
| 11 | J – 5 | 22 | 01W | 251 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.