Daily Sunspot Evaluation
Observation Sheet Saturday, 30 March 1968
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)
- 60
- Relative number (R)
- 160
- Observer
- SM
- Reading
- all checks consistent
- File
- 19680330.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 11 | 18 | 1E | 96 | |||
| 2 | B – 3 | 23 | 7E | 90 | |||
| 3 | A – 4 | -14 | 53E | 44 | |||
| 4 | B – 3 | -18 | 62E | 35 | |||
| 5 | C – 8 | -18 | 29E | 68 | |||
| 6 | E – 16 | -22 | 21E | 76 | |||
| 7 | C – 6 | -14 | 12W | 109 | |||
| 8 | C – 4 | -14 | 73W | 170 | |||
| 9 | C – 4 | 11 | 34W | 131 | |||
| 10 | J – 1 | 10 | 20W | 117 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.