Daily Sunspot Evaluation
Observation Sheet Friday, 30 April 2004
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)
- 13
- Relative number (R)
- 43
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040430.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 4 | 16 | 32W | 51 | 35W | 1.5 | 71 |
| 2 | AX – 1 | 14 | 25W | 44 | 28W | 74 | |
| 3 | DRO – 8 | -14 | 43W | 62 | 46W | 5 | 73 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.