Daily Sunspot Evaluation
Observation Sheet Wednesday, 5 February 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)
- 2
- Number of spots (f)
- 6
- Relative number (R)
- 26
- Observer
- OG
- Reading
- all checks consistent
- File
- 19750205.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 1 | 57E | 124 | 35E | ||
| 2 | C – 4 | -13 | 23E | 158 | 21E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.