Daily Sunspot Evaluation
Observation Sheet Thursday, 23 May 2002
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)
- 114
- Relative number (R)
- 214
- Observer
- ZFB
- Reading
- all checks consistent
- File
- 20020523.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 4 | 21W | 24 | 24W | 1.5 | |
| 2 | DKC – 50 | 9 | 09W | 12 | 12W | 9.5 | |
| 3 | HA – 6 | 14 | 18E | 345 | 15E | 3.5 | |
| 4 | CSO – 4 | 15 | 32E | 331 | 29E | 6.5 | |
| 5 | DAI – 8 | 14 | 45E | 318 | 42E | ~9 | |
| 6 | CSO – 7 | -22 | 28W | 31 | 31W | ~5 | |
| 7 | CSO – 3 | -15 | 05E | 358 | 02E | 2.5 | |
| 8 | EAC – 27 | -22 | 31E | 332 | 28E | 14.5 | |
| 9 | HS – 5 | -9 | 58E | 305 | 55E | 2.5 | |
| 10 | AT – 3 | -11 | 62E | 301 | 59E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.