Daily Sunspot Evaluation
Observation Sheet Friday, 22 July 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)
- 8
- Number of spots (f)
- 49
- Relative number (R)
- 129
- Observer
- SG0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRI – 13 | 24 | 1W | 38 ⚠ | 4W | 6 | 152 |
| 2 | ? – 1 | 12 | 85E | 10 | 82E | 153 | |
| 3 | DKC – 4 | -17 | 75W | 170 | 78W | 9 | 147 |
| 4 | HA – 1 | -16 | 66W | 161 | 69W | 2.5 | 149 |
| 5 | EKC – 15 | -22 | 54W | 149 | 57W | 14 | 144 |
| 6 | BRI – 9 | -22 | 40W | 125 ⚠ | 42W | 4.5 | 150 |
| 7 | BRR – 5 | -22 | 8E | 87 | 5E | 4 | 148 |
| 8 | AZ – 1 | -22 | 30E | 65 | 27E | 0.5 | 159 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.