Daily Sunspot Evaluation
Observation Sheet Thursday, 13 June 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)
- 4
- Number of spots (f)
- 16
- Relative number (R)
- 56
- Observer
- TS
- Reading
- all checks consistent
- File
- 19850613.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 2 | -10 | 54W | 11 | 57W | 25 15 | |
| 2 | HHA – 1 | -15 | 44W | 1 | 43W | 3 20 | |
| 3 | CAI – 11 | -1 | 08W | 325 | 14W | 11 19 | |
| 4 | BRO – 2 | -1 | 09E | 308 | 06E | 5 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.