Daily Sunspot Evaluation
Observation Sheet Wednesday, 22 February 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)
- 5
- Number of spots (f)
- 24
- Relative number (R)
- 74
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780222.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 10 | 22 | 28E | 221 | 25E | ||
| 2 | J – 2 | 40 | 55E | 197 | 52E | ||
| 3 | J – 1 | -20 | 65E | 187 | 62E | ||
| 4 | H – 2 | 28 | 33W | 285 | 36W | ||
| 5 | D – 9 | 19 | 05W | 257 | 08W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.