Daily Sunspot Evaluation
Observation Sheet Friday, 18 June 1993
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)
- 2
- Relative number (R)
- 22
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19930618.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 21 | 75W | 280 | 79W | 2 | 148 |
| 2 | AX – 1 | 13 | 12E | 193 | 08E | - | 157 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.