Daily Sunspot Evaluation
Observation Sheet Wednesday, 15 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)
- 6
- Number of spots (f)
- 43
- Relative number (R)
- 103
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780315.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 33 | 64E | 271 | 62E | ||
| 2 | ? – 4 | 19 | 68E | 267 | 66E | ||
| 3 | E – 15 | -32 | 21E | 314 | 19E | ||
| 4 | C – 8 | -62 | 22W | 357 | 24W | ||
| 5 | J – 2 | 13 | 62W | 37 | 64W | ||
| 6 | H – 13 | 15 | 22W | 357 | 24W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.