Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 May 1999
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)
- 8
- Number of spots (f)
- 38
- Relative number (R)
- 118
- Observer
- NA
- Reading
- all checks consistent
- File
- 19990504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 14 | 68W | 28 | 71W | - | |
| 2 | ? – 5 | 22 | 68W | 28 | 71W | ~8 | |
| 3 | CAO – 6 | 20 | 22W | 342 | 26W | ~4 | |
| 4 | HS – 6 | 16 | 13E | 307 | 10E | ~4 | Dsi-6 |
| 5 | HR – 1 | 25 | 21E | 299 | 18E | 0.5 | |
| 6 | DAC – 12 | 19 | 25E | 295 | 22E | ~5 | Dai-12 |
| 7 | ? – 3 | 17 | 73E | 247 | 70E | -? | |
| 8 | CAO – 4 | -14 | 08W | 328 | 11W | ~3.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.