Daily Sunspot Evaluation
Observation Sheet Tuesday, 30 April 2002
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)
- 6
- Number of spots (f)
- 18
- Relative number (R)
- 78
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20020430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 1 | 4 | 74W | 21 | 76W | ~2.5 | |
| 2 | DAO – 7 | 12 | 59W | 6 | 61W | ~9 | |
| 3 | HR – 1 | 11 | 18W | 325 | 20W | 1.5 | |
| 4 | HA – 3 | 13 | 06W | 313 | 08W | ~2 | |
| 5 | HA – 2 | 17 | 69E | 238 | 67E | 2 | |
| 6 | DAC – 4 | -30 | 65E | 242 | 63E | 6.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.