Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 July 2004
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)
- 3
- Number of spots (f)
- 23
- Relative number (R)
- 53
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20040728.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKC – 11 | 8 | 66W | 347 | 68W | 14 | 141 |
| 2 | DSO – 11 | 7 | 21E | 260 | 19E | 9 | 144 |
| 3 | HS – 1 | -12 | 67W | 348 | 69W | 2 | 142 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.