Daily Sunspot Evaluation
Observation Sheet Sunday, 3 April 1988
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)
- 6
- Number of spots (f)
- 46
- Relative number (R)
- 106
- Observer
- HG
- Reading
- all checks consistent
- File
- 19880403.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAF – 21 | 20 | 47W | 154 | 48W | 13 | 50 |
| 2 | AX – 3 | 24 | 37W | 144 | 38W | 3 | 63 |
| 3 | CAF – 7 | 18 | 76E | 31 | 75E | 14 | 64 |
| 4 | ? – 1 | -34 | 79W | 186 | 80W | 1.5 | 55 |
| 5 | DAE – 9 | -21 | 45W | 152 | 46W | 8 | 60 |
| 6 | DAO – 5 | -21 | 25W | 132 | 26W | 8 | 59 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.