Daily Sunspot Evaluation
Observation Sheet Tuesday, 28 March 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)
- 9
- Number of spots (f)
- 85
- Relative number (R)
- 175
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 10 | 16 | 08E | 268 | |||
| 2 | H – 14 | -19 | 44E | 232 | |||
| 3 | D – 14 | -21 | 21W | 297 | |||
| 4 | A – 1 | 13 | 60W | 336 | |||
| 5 | ? – 1 | 19 | 80W | 356 | |||
| 6 | ? – 8 | 27 | 66W | 342 | |||
| 7 | H – 10 | 23 | 22W | 303 ⚠ | |||
| 8 | E – 16 | 22 | 14W | 290 | |||
| 9 | C – 11 | 22 | 06W | 282 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.