Daily Sunspot Evaluation
Observation Sheet Friday, 8 August 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)
- 4
- Number of spots (f)
- 31
- Relative number (R)
- 71
- Observer
- NA
- Reading
- all checks consistent
- File
- 19970808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EAI – 13 | 20 | 67W | 112 | 70W | 10.5 | 56 |
| 2 | AX – 1 | 26 | 74E | 331 | 71E | 59 | |
| 3 | DAI – 16 | -20 | 22E | 23 | 19E | 8 | 57 |
| 4 | AX – 1 | -21 | 26W | 71 | 29W | 55 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.