Daily Sunspot Evaluation
Observation Sheet Thursday, 10 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)
- 6
- Number of spots (f)
- 20
- Relative number (R)
- 80
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20010510.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 2 | 22 | 35W | 348 | 38W | 2.5 | |
| 2 | ? – 4 | 13 | 79E | 234 | 76E | ? | |
| 3 | HA – 1 | -8 | 30W | 343 | 33W | 0.5 | |
| 4 | HA – 7 | -16 | 24W | 337 | 27W | 2.5 | |
| 5 | HA – 4 | -22 | 09E | 304 | 06E | 2.5 | |
| 6 | HA – 2 | -10 | 37E | 276 | 34E | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.