Daily Sunspot Evaluation
Observation Sheet Wednesday, 2 April 1997
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)
- 2
- Number of spots (f)
- 25
- Relative number (R)
- 45
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19970402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 23 | -24 | 07E | 289 | 06E | 9 | 15 |
| 2 | ? – 2 | -29 | 85E | 211 | 84E | - | 16 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.