Daily Sunspot Evaluation
Observation Sheet Thursday, 14 June 1973
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)
- 28
- Relative number (R)
- 78
- Observer
- SK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19730614.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 18 | 13 | 42E | 143 ⚠ | 44 | ||
| 2 | A – 1 | 8 | 30E | 161 | 45 | ||
| 3 | A – 1 | -15 | 19W | 210 | 46 | ||
| 4 | ? – 5 | 14 | 74W | 265 | 49 | ||
| 5 | J – 3 | 16 | 20W | 211 | 66 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.