Daily Sunspot Evaluation
Observation Sheet Thursday, 16 May 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)
- 23
- Relative number (R)
- 43
- Observer
- HM
- Reading
- all checks consistent
- File
- 19850516.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 21 | -13 | 31W | 359 | 34W | 11.40 | |
| 2 | HAX – 2 | -8 | 69E | 259 | 66E | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.