Daily Sunspot Evaluation
Observation Sheet Friday, 12 May 2000
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)
- 12
- Number of spots (f)
- 102
- Relative number (R)
- 222
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20000512.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 8 | 52W | 116 | 95W | 0.5 | |
| 2 | AX – 2 | 25 | 38W | 102 | 41W | 0.5 | |
| 3 | DKC – 18 | 16 | 18W | 82 | 21W | 6 | |
| 4 | AX – 2 | 18 | 07W | 71 | 40W | 2 | |
| 5 | DKC – 29 | 13 | 02E | 62 | 01W | 10 | |
| 6 | AX – 2 | 19 | 04E | 60 | 01E | 1.5 | |
| 7 | CSO – 12 | 15 | 30E | 34 | 27E | 4.7 | |
| 8 | HS – 2 | 10 | 44E | 20 | 41E | 2 | |
| 9 | DAC – 24 | -23 | 22W | 86 | 25W | 7.5 | |
| 10 | AX – 2 | -21 | 33E | 31 | 30E | 2.5 | |
| 11 | HS – 1 | -17 | 61E | 3 | 58E | 1 | |
| 12 | ? – 6 | -20 | 79E | 345 | 76E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.