Daily Sunspot Evaluation
Observation Sheet Monday, 18 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)
- 25
- Relative number (R)
- 75
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20041018.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 7 | -12 | 03E | 275 | 01E | 8 | 180 |
| 2 | DAI – 13 | -9 | 16E | 262 | 14E | 5.5 | 181 |
| 3 | CAO – 3 | -5 | 35E | 243 | 33E | ~3 | 184 |
| 4 | HS – 1 | -19 | 51E | 227 | 49E | ~1 | 182 |
| 5 | HA – 1 | -4 | 61E | 217 | 59E | ~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.