Daily Sunspot Evaluation
Observation Sheet Friday, 25 May 2001
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)
- 10
- Number of spots (f)
- 75
- Relative number (R)
- 175
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20010525.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 21 | 49W | 163 | 52W | 1.5 | |
| 2 | HS – 1 | 19 | 19W | 133 | 22W | ~2 | |
| 3 | EMO – 28 | 7 | 14W | 128 | 17W | 14.5 | |
| 4 | BXI – 7 | 27 | 11W | 125 | 14W | 4 | |
| 5 | DAI – 19 | 5 | 21E | 93 | 18E | 8 | |
| 6 | HS – 2 | 12 | 43E | 71 | 40E | 1.5 | |
| 7 | AX – 1 | 12 | 51E | 63 | 48E | ||
| 8 | HA – 5 | -5 | 03W | 117 | 06W | 2.5 | |
| 9 | CSO – 7 | -11 | 06E | 108 | 03E | 4 | |
| 10 | HS – 3 | -7 | 11E | 103 | 08E | 2.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.