Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 September 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)
- 4
- Relative number (R)
- 24
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20050927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 1 | 9 | 53W | 110 | 55W | 5.3 | |
| 2 | CAO – 3 | -2 | 28E | 29 | 26E | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.