Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 July 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)
- 4
- Number of spots (f)
- 17
- Relative number (R)
- 57
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 19 | 26E | 33 | 23E | ||
| 2 | J – 1 | -19 | 60E | 359 | 57E | ||
| 3 | J – 7 | 20 | 35W | 94 | 38W | ||
| 4 | E – 7 | 38 | 73W | 132 | 76W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.