Daily Sunspot Evaluation
Observation Sheet Sunday, 5 April 1998
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)
- 40
- Relative number (R)
- 80
- Observer
- MB
- Reading
- all checks consistent
- File
- 19980405.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAO – 11 | -21 | 21W | 141 | 23W | 41 | 56 57 |
| 2 | CRO – 6 | -22 | 09W | 129 | 11W | 04 | 58 59 |
| 3 | DAI – 21 | -22 | 37E | 83 | 35E | 09 | 60 66 |
| 4 | ? – 2 | -19 | 83E | 37 | 81E | ? | 67 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.