Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 April 1986
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)
- 4
- Relative number (R)
- 24
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19860416.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 2 | 0 | 56E | 171 | 53E | 2.25 | |
| 2 | AXX – 2 | -8 | 53E | 174 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.