Daily Sunspot Evaluation
Observation Sheet Monday, 6 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)
- 5
- Number of spots (f)
- 24
- Relative number (R)
- 74
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19980406.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | -22 | 38W | 145 | 20W | 1.5 | 56 54 |
| 2 | AX – 2 | -22 | 20W | 127 | 22W | 1.5 | 558 |
| 3 | DSO – 15 | -23 | 24E | 83 | 22E | 9.5 | 560 |
| 4 | ? – 5 | -20 | 70E | 37 | 68E | 561 | |
| 5 | ? – 1 | -28 | 72E | 35 | 30E | 562 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.