Daily Sunspot Evaluation
Observation Sheet Saturday, 7 July 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)
- 4
- Number of spots (f)
- 24
- Relative number (R)
- 64
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 20010707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 5 | 20 | 06W | 272 | 09W | ~2.5 | |
| 2 | HS – 7 | 6 | 28E | 238 | 25E | ~4 | |
| 3 | BXO – 8 | -20 | 28W | 294 | 31W | 5 | |
| 4 | HR – 4 | -18 | 06E | 260 | 03E | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.