Daily Sunspot Evaluation
Observation Sheet Monday, 7 July 1997
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)
- 9
- Relative number (R)
- 39
- Observer
- ıH
- Reading
- all checks consistent
- File
- 19970707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 5 | -31 | 27W | 136 | 30W | 3 | 42 |
| 2 | HR – 2 | -31 | 15W | 124 | 18W | 3 | 43 |
| 3 | AX – 2 | -17 | 02E | 107 | 01W | - | 44 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.