Daily Sunspot Evaluation
Observation Sheet Saturday, 23 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)
- 9
- Number of spots (f)
- 40
- Relative number (R)
- 130
- Observer
- SG0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880723.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAR – 4 | 24 | 27W | 109 | 30W | 25 | 155 |
| 2 | CAO – 4 | 24 | 15E | 93 ⚠ | 18W | 8 | 152 |
| 3 | DAO – 2 | 11 | 74E | 8 | 31E | 8 | 153 |
| 4 | HA – 1 | -16 | 79W | 161 | 82W | 2 | 149 |
| 5 | EKC – 5 | -22 | 68W | 150 | 71W | 14 | 143 |
| 6 | BPE – 4 | -22 | 53W | 125 ⚠ | 56W | 5 | 150 |
| 7 | BRO – 14 | -23 | 17W | 99 | 20W | 5 | 1485 |
| 8 | BRO – 4 | -22 | 5W | 87 | 8W | 7 | 146 |
| 9 | ? – 2 | -24 | 78E | 4 | 75E | 4 | 156 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.