Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 March 1988
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)
- 5
- Number of spots (f)
- 40
- Relative number (R)
- 90
- Observer
- FL
- Reading
- all checks consistent
- File
- 19880316.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 4 | 22 | 23E | 323 | 24E | 3 | 47 |
| 2 | BRO – 2 | 20 | 66E | 280 | 64E | 1 | 51 |
| 3 | CAE – 4 | -31 | 05W | 351 | 02W | 4 | 52 |
| 4 | ARM – 2 | -17 | 17E | 329 | 15E | 1 | 50 |
| 5 | FKC – 28 | -25 | 32E | 314 | 30E | 19 | 49 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.