Daily Sunspot Evaluation
Observation Sheet Thursday, 26 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)
- 10
- Number of spots (f)
- 69
- Relative number (R)
- 169
- Observer
- SM
- Reading
- all checks consistent
- File
- 19700326.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 19 | 13 | 0 | 238 | |||
| 2 | J – 1 | 21 | 11E | 227 | |||
| 3 | H – 2 | 4 | 77E | 161 | |||
| 4 | J – 2 | -2 | 50E | 188 | |||
| 5 | J – 1 | -16 | 67W | 305 | |||
| 6 | B – 5 | -6 | 38W | 276 | |||
| 7 | H – 12 | -3 | 26W | 264 | |||
| 8 | G – 7 | 10 | 18W | 256 | |||
| 9 | C – 19 | 16 | 19W | 257 | |||
| 10 | A – 1 | 21 | 14W | 252 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.