Daily Sunspot Evaluation
Observation Sheet Sunday, 23 July 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
- GT
- Reading
- all checks consistent
- File
- 19780723.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 18 | 30E | 27 | 27E | ||
| 2 | A – 2 | -25 | 65W | 122 | 68W | ||
| 3 | C – 11 | 12 | 52W | 109 | 55W | ||
| 4 | G – 4 | 16 | 57W | 114 | 60W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.