Daily Sunspot Evaluation
Observation Sheet Tuesday, 2 April 1985
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)
- 2
- Number of spots (f)
- 6
- Relative number (R)
- 26
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19850402.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HSX – 2 | 5 | 64W | 25 ⚠ | 66W | 25 | |
| 2 | BRO – 4 | -24 | 48E | 139 ⚠ | 46E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.