Daily Sunspot Evaluation
Observation Sheet Wednesday, 4 May 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)
- 2
- Number of spots (f)
- 15
- Relative number (R)
- 35
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 12 | 33 | 47E | 126 | 44E | ||
| 2 | A – 3 | -22 | 24W | 197 | 27W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.