Daily Sunspot Evaluation
Observation Sheet Sunday, 4 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)
- 5
- Number of spots (f)
- 19
- Relative number (R)
- 69
- Observer
- MS
- Reading
- all checks consistent
- File
- 20040404.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 14 | 59W | 61 | 61W | 2.5 | 52 |
| 2 | HS – 1 | -4 | 61W | 63 | 63W | 1.5 | 46 |
| 3 | CAO – 10 | -13 | 10W | 12 | 12W | 7 | 55 |
| 4 | HS – 1 | -14 | 48E | 314 | 46E | 1.5 | 57 |
| 5 | HA – 6 | -17 | 46E | 316 | 44E | 4 | 58 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.