Daily Sunspot Evaluation
Observation Sheet Wednesday, 20 October 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)
- 5
- Number of spots (f)
- 47
- Relative number (R)
- 97
- Observer
- MS
- Reading
- all checks consistent
- File
- 20041020.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 10 | 75E | 177 | 72E | ~5 | 185 |
| 2 | BAO – 6 | -7 | 400 | 292 | 43W | ~5 | 186 |
| 3 | EAC – 19 | -12 | 23W | 275 | 26W | ~11 | 180 |
| 4 | ORO – 17 | -4 | 08E | 244 | 05E | ~6 | 184 |
| 5 | HA – 2 | -4 | 35E | 217 | 32E | 1 | 183 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.