Daily Sunspot Evaluation
Observation Sheet Monday, 13 October 2003
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)
- 2
- Number of spots (f)
- 3
- Relative number (R)
- 23
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20031013.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 1 | 23 | 37E | 98 | 34E | ~0.5 | 280 |
| 2 | HR – 2 | -15 | 12W | 147 | 15W | 1 | 275 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.