Daily Sunspot Evaluation
Observation Sheet Saturday, 21 March 1959
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)
- 186
- Relative number (R)
- 296
- Observer
- SG
- Reading
- all checks consistent
- File
- 19590321.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 20 | 29E | ||||
| 2 | E – 8 | 18 | 42E | ||||
| 3 | H – 3 | 25 | 61E | ||||
| 4 | ? – 1 | 25 | 71E | ||||
| 5 | A – 1 | 13 | 54E | ||||
| 6 | J – 1 | -33 | 64E | ||||
| 7 | A – 1 | -17 | 54W | ||||
| 8 | D – 4 | -9 | 51W | ||||
| 9 | E – 57 | 12 | 46W | ||||
| 10 | F – 64 | 28 | 36W | ||||
| 11 | F – 45 | 16 | 4W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.