Daily Sunspot Evaluation
Observation Sheet Monday, 20 March 1978
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)
- 4
- Number of spots (f)
- 22
- Relative number (R)
- 62
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780320.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 31 | 01E | 268 | 01W | ||
| 2 | C – 9 | 19 | 06E | 263 | 04E | ||
| 3 | ? – 1 | 20 | 38E | 231 | 36E | ||
| 4 | E – 10 | -34 | 42W | 311 | 44W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.