Daily Sunspot Evaluation
Observation Sheet Monday, 26 April 1999
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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19990426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 9 | 30 | 26E | 40 | 24E | 4.5 | |
| 2 | DAI – 6 | 21 | 35E | 31 | 33E | 9 | |
| 3 | DAO – 8 | 16 | 35E | 31 | 33E | 7 | |
| 4 | HA – 3 | -13 | 42W | 108 | 44W | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.