Daily Sunspot Evaluation
Observation Sheet Tuesday, 13 May 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)
- 6
- Number of spots (f)
- 16
- Relative number (R)
- 76
- Observer
- HE
- Reading
- all checks consistent
- File
- 20030513.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 8 | 87W | 85 | 90W | - | 113 |
| 2 | DAO – 4 | 17 | 20E | 338 | 17E | 4 | 120 |
| 3 | CRO – 5 | 9 | 19E | 339 | 16E | 4 | 122 |
| 4 | ? – 3 | -18 | 80W | 78 | 83W | 6 | 126 |
| 5 | HR – 1 | -16 | 23W | 21 | 26W | - | 124 |
| 6 | DSO – 2 | -16 | 53E | 305 | 50E | 10 | 123 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.