Daily Sunspot Evaluation
Observation Sheet Friday, 19 August 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)
- 3
- Number of spots (f)
- 23
- Relative number (R)
- 53
- Observer
- MS
- Reading
- all checks consistent
- File
- 20050819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 5 | 16 | 54E | 158 | 52E | 4 | |
| 2 | HS – 1 | -14 | 44W | 256 | 46W | -2.5 | |
| 3 | DAI – 17 | -10 | 11W | 223 | 13W | 9 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.