Daily Sunspot Evaluation
Observation Sheet Friday, 24 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)
- 9
- Number of spots (f)
- 55
- Relative number (R)
- 145
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780224.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 10 | 23 | 07E | 218 | 05E | ||
| 2 | J – 3 | 40 | 29E | 196 | 27E | ||
| 3 | ? – 1 | 20 | 81E | 144 | 79E | ||
| 4 | ? – 1 | -22 | 62E | 163 | 60E | ||
| 5 | H – 5 | -20 | 40E | 185 | 38E | ||
| 6 | ? – 1 | -24 | 85E | 140 | 83E | ||
| 7 | C – 11 | 19 | 31W | 256 | 33W | ||
| 8 | ? – 2 | 29 | 58W | 283 | 60W | ||
| 9 | D – 21 | 19 | 02W | 227 | 04W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.