Daily Sunspot Evaluation
Observation Sheet Thursday, 10 April 2003
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)
- 17
- Relative number (R)
- 67
- Observer
- MS
- Reading
- all checks consistent
- File
- 20030410.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HH – 8 | 6 | 08W | 82 | 10W | 5.5 | 83 |
| 2 | HR – 2 | 10 | 25E | 49 | 23E | ~1.5 | 87 |
| 3 | HR – 2 | -8 | 66W | 140 | 68W | ~1 | 84 |
| 4 | HR – 1 | -22 | 33W | 107 | 35W | ~0.5 | 88 |
| 5 | HA – 4 | -8 | 75E | 359 | 73E | ~4 | 89 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.