Daily Sunspot Evaluation
Observation Sheet Friday, 2 September 1977
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)
- 11
- Relative number (R)
- 41
- Observer
- GA
- Reading
- all checks consistent
- File
- 19770902.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | 26 | 59E | 315 | 54E | ||
| 2 | D – 2 | 16 | 28E | 344 | 25E | ||
| 3 | J – 3 | 26 | 56W | 68 | 59W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.