Daily Sunspot Evaluation
Observation Sheet Friday, 2 April 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)
- 4
- Number of spots (f)
- 12
- Relative number (R)
- 52
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20040402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 3 | 13 | 29W | 57 | 27W | ~3.5 | 52 |
| 2 | HS – 1 | -6 | 33W | 61 | 31W | ~2 | 46 |
| 3 | EKO – 7 | -15 | 19E | 9 | 17E | ~10.5 | 55 |
| 4 | ? – 1 | -15 | 77E | 311 | 75E | ~3 | 57 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.