Daily Sunspot Evaluation
Observation Sheet Saturday, 18 June 2005
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)
- 31
- Relative number (R)
- 51
- Observer
- MB
- Reading
- all checks consistent
- File
- 20050618.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 25 | -17 | 23W | 336 | 26W | 5.11 | |
| 2 | HA – 6 | -7 | 62E | 251 | 59E | ≥3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.