Daily Sunspot Evaluation
Observation Sheet Thursday, 30 March 1961
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)
- 8
- Number of spots (f)
- 42
- Relative number (R)
- 122
- Observer
- KA
- Reading
- all checks consistent
- File
- 19610330.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 9 | -13 | 15E | ||||
| 2 | H – 9 | -16 | 53E | ||||
| 3 | A – 4 | -15 | 22E | ||||
| 4 | G – 3 | -18 | 32E | ||||
| 5 | A – 1 | -10 | 55W | ||||
| 6 | H – 1 | 8 | 58W | ||||
| 7 | C – 14 | 8 | 44W | ||||
| 8 | A – 1 | 11 | 20W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.