Daily Sunspot Evaluation
Observation Sheet Monday, 5 July 1971
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)
- 6
- Number of spots (f)
- 44
- Relative number (R)
- 104
- Observer
- FA
- Reading
- all checks consistent
- File
- 19710705.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | -7 | 78E | 126 | |||
| 2 | C – 4 | -13 | 21E | 183 | |||
| 3 | F – 29 | -13 | 24W | 228 | |||
| 4 | H – 5 | -7 | 36W | 240 | |||
| 5 | B – 2 | 12 | 45W | 249 | |||
| 6 | J – 1 | 16 | 25W | 229 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.