Daily Sunspot Evaluation
Observation Sheet Sunday, 30 April 2000
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)
- 8
- Number of spots (f)
- 66
- Relative number (R)
- 146
- Observer
- TA
- Reading
- all checks consistent
- File
- 20000430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 20 | 82W | 304 | 84W | - | |
| 2 | EKO – 14 | 18 | 41W | 263 | 43W | 14.5 | |
| 3 | HA – 3 | 17 | 14W | 236 | 16W | 3 | |
| 4 | BKC – 25 | -15 | 41W | 263 | 43W | 11 | |
| 5 | HR – 6 | -14 | 25W | 247 | 27W | ~3.5 | Cro-6 |
| 6 | DAO – 12 | -13 | 16W | 237 | 17W | 7 | |
| 7 | AX – 2 | -15 | 02W | 224 | 04W | - | |
| 8 | CRO – 3 | -17 | 55E | 167 | 53E | 3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.