Daily Sunspot Evaluation
Observation Sheet Monday, 20 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)
- 24
- Relative number (R)
- 44
- Observer
- TS
- Reading
- all checks consistent
- File
- 19850520.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 19 | 9 | 33E | 238 | 34E | 9.5 | |
| 2 | DAI – 5 | -8 | 11E | 260 | 12E | 5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.