Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 March 1971
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)
- 3
- Number of spots (f)
- 21
- Relative number (R)
- 51
- Observer
- MA
- Reading
- all checks consistent
- File
- 19710324.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 8 | -13 | 63E | 62 | |||
| 2 | J – 1 | -8 | 02W | 127 | |||
| 3 | C – 12 | -15 | 27W | 152 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.