Daily Sunspot Evaluation
Observation Sheet Thursday, 4 May 1967
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)
- 7
- Number of spots (f)
- 38
- Relative number (R)
- 108
- Observer
- LT
- Reading
- all checks consistent
- File
- 19670504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | 22 | 21E | 127 | |||
| 2 | H – 3 | 20 | 40E | 108 | |||
| 3 | C – 17 | -20 | 5W | 152 | |||
| 4 | ? – 1 | -21 | 76W | 224 | |||
| 5 | H – 1 | -17 | 68W | 216 | |||
| 6 | A – 1 | 11 | 43W | 191 | |||
| 7 | D – 11 | 13 | 36W | 184 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.