Daily Sunspot Evaluation
Observation Sheet Saturday, 30 September 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)
- 34
- Relative number (R)
- 104
- Observer
- SB
- Reading
- all checks consistent
- File
- 19670930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 4 | 24 | 21E | 316 | |||
| 2 | A – 2 | 21 | 24E | 313 | |||
| 3 | H – 1 | 13 | 11E | 326 | |||
| 4 | ? – 1 | 23 | 80E | 257 | |||
| 5 | H – 10 | -15 | 48E | 289 | |||
| 6 | A – 2 | 12 | 46W | 23 | |||
| 7 | B – 14 | 14 | 07W | 344 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.