Daily Sunspot Evaluation
Observation Sheet Saturday, 17 November 2001
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)
- 8
- Number of spots (f)
- 36
- Relative number (R)
- 116
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 20011117.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 8 | 62W | 10 | 1 | ||
| 2 | HS – 1 | 15 | 45W | 353 | 1 | ||
| 3 | HS – 1 | 11 | 15W | 321 | 1.5 | ||
| 4 | DUI – 12 | 12 | 4E | 304 | 6 | ||
| 5 | BAO – 3 | 20 | 35E | 293 ⚠ | 3.5 | ||
| 6 | HS – 1 | -19 | 30W | 18 ⚠ | 1.5 | ||
| 7 | DUI – 5 | -24 | 6E | 302 | 3 | ||
| 8 | HK – 12 | -18 | 38E | 265 ⚠ | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.