Daily Sunspot Evaluation
Observation Sheet Thursday, 2 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)
- 19
- Relative number (R)
- 59
- Observer
- NA
- Reading
- all checks consistent
- File
- 19980402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ESO – 4 | -26 | 67W | 229 | 70W | 18 | 5°54 |
| 2 | AX – 1 | -33 | 46W | 207 | 49W | 6°54 | |
| 3 | ESC – 12 | -22 | 20E | 141 | 17E | 12.5 | 6°84 |
| 4 | HS – 2 | -22 | 31E | 130 | 28E | 2 | 5°58 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.