Daily Sunspot Evaluation
Observation Sheet Thursday, 22 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)
- 3
- Number of spots (f)
- 23
- Relative number (R)
- 53
- Observer
- MS
- Reading
- all checks consistent
- File
- 20040422.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 4 | -19 | 54W | 178 | 56W | ~4.5 | 66 |
| 2 | HA – 2 | -6 | 07W | 131 | 09W | 1 | 67 |
| 3 | EAI – 17 | -8 | 13E | 111 | 11E | 11 | 68 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.