Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 July 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)
- 12
- Number of spots (f)
- 78
- Relative number (R)
- 198
- Observer
- SB0
- Reading
- all checks consistent
- File
- 19990727.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 35 | 21 | 46W | 334 | 48W | 16 | |
| 2 | HS – 1 | 17 | 07W | 295 | 09W | 2 | |
| 3 | AX – 1 | 21 | 05W | 293 | 07W | ||
| 4 | CAO – 3 | 22 | 64E | 224 | 62E | 6 | |
| 5 | ? – 1 | 24 | 80E | 208 | 78E | ||
| 6 | ? – 1 | 16 | 81E | 209 | 79E | ||
| 7 | AX – 2 | -18 | 04W | 292 | 06W | n1.5 | |
| 8 | HA – 5 | -15 | 18E | 270 | 16E | ~2 | |
| 9 | HA – 2 | -25 | 26E | 262 | 24E | 4 | C30-2 |
| 10 | EAI – 12 | -17 | 47E | 241 | 45E | 10 | |
| 11 | DKI – 10 | -26 | 41E | 247 | 39E | 8.5 | |
| 12 | HK – 5 | -28 | 52E | 236 | 50E | ~5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.