Daily Sunspot Evaluation
Observation Sheet Monday, 12 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)
- 6
- Relative number (R)
- 36
- Observer
- MS
- Reading
- all checks consistent
- File
- 20040412.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | -14 | 56W | 313 | 59W | 1.5 | 57 |
| 2 | BXO – 3 | -17 | 57W | 314 | 60W | ~4 | 58 |
| 3 | HR – 2 | -15 | 08E | 249 | 05E | 2.5 | 62 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.