Daily Sunspot Evaluation
Observation Sheet Tuesday, 3 July 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)
- 3
- Number of spots (f)
- 27
- Relative number (R)
- 57
- Observer
- ED
- Reading
- all checks consistent
- File
- 19730703.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 17 | 12 | 32°E | 271 | 127 | ||
| 2 | C – 7 | -6 | 28°E | 275 | 123 | ||
| 3 | B – 3 | -7 | 20°E | 283 | 128 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.