Daily Sunspot Evaluation
Observation Sheet Wednesday, 11 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)
- 3
- Number of spots (f)
- 5
- Relative number (R)
- 35
- Observer
- FA
- Reading
- all checks consistent
- File
- 19770511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 2 | -22 | 61E | 19 | 59E | ||
| 2 | D – 2 | 21 | 46W | 126 | 48W | ||
| 3 | D – 1 | 32 | 51W | 131 | 53W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.