Daily Sunspot Evaluation
Observation Sheet Monday, 5 May 1975
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)
- 18
- Relative number (R)
- 48
- Observer
- FA
- Reading
- all checks consistent
- File
- 19750505.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | -13 | 01E | 87 | 02W | ||
| 2 | D – 13 | -8 | 53W | 141 | 56W | ||
| 3 | A – 2 | 3 | 39W | 125 | 40W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.