Daily Sunspot Evaluation
Observation Sheet Monday, 15 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)
- 4
- Number of spots (f)
- 15
- Relative number (R)
- 55
- Observer
- DK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19670515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 20 | 32E | 331 ⚠ | |||
| 2 | ? – 3 | -13 | 30E | 293 ⚠ | |||
| 3 | J – 1 | -14 | 51E | 309 | |||
| 4 | B – 10 | -16 | 23E | 336 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.