Daily Sunspot Evaluation
Observation Sheet Tuesday, 16 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)
- 5
- Number of spots (f)
- 18
- Relative number (R)
- 68
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670516.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | 25 | 28E | 325 ⚠ | |||
| 2 | B – 3 | 15 | 45E | 323 ⚠ | |||
| 3 | H – 4 | -13 | 6E | 283 ⚠ | |||
| 4 | J – 1 | -14 | 40E | 305 ⚠ | |||
| 5 | C – 9 | -15 | 14E | 335 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.