Daily Sunspot Evaluation
Observation Sheet Friday, 24 July 1998
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)
- 40
- Relative number (R)
- 90
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 19980724.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 6 | 24 | 0 | 105 | 1 | 4 | 150 |
| 2 | HS – 8 | 15 | 436 | 62 | 42E | 3 | 152 |
| 3 | DAC – 15 | 91 | 52E | 53 | 51E | 6 | 153 |
| 4 | ? – 1 | -15 | 79W | 184 | 80W | 1148 | |
| 5 | EHC – 10 | -23 | 49E | 56 | 48E | 12 | 151 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.