Daily Sunspot Evaluation
Observation Sheet Wednesday, 8 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)
- 9
- Number of spots (f)
- 65
- Relative number (R)
- 155
- Observer
- YK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19980408.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 17 | 66W | 147 | 69W | 6.5 | 62 63 |
| 2 | CRO – 3 | 32 | 45E | 86 ⚠ | 42E | 4 | 65 64 |
| 3 | HS – 1 | -21 | 64W | 145 | 67W | 2 | 58 52 |
| 4 | DAC – 11 | -28 | 07W | 88 | 10W | 5 | 60 64 |
| 5 | EAO – 24 | -23 | 02W | 83 | 05W | 11 | 61 60 |
| 6 | DHO – 8 | -20 | 44E | 34 | 41E | 10.5 | 62 61 |
| 7 | HA – 1 | -28 | 47E | 34 | 44E | 1.5 | 63 62 |
| 8 | CAO – 13 | -29 | 68E | 13 | 65E | 9.5 | 67 68 |
| 9 | AX – 1 | -24 | 75E | 6 | 72E | 68 69 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.