Daily Sunspot Evaluation
Observation Sheet Saturday, 19 July 2003
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)
- 9
- Number of spots (f)
- 120
- Relative number (R)
- 210
- Observer
- SB0
- Reading
- counts consistent, some coordinates doubtful
- File
- 20030719.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 16 | 15 | 10W | 201 | 13W | 9 | 196 |
| 2 | DAC – 21 | 14 | 01E | 190 | 02W | 8 | 198 |
| 3 | HA – 1 | 18 | 18E | 173 | 15E | ~0.5 | 200 |
| 4 | HS – 3 | 13 | 22E | 169 | 19E | 3 | 201 |
| 5 | DSI – 13 | 11 | 38E | 153 | 35E | 5.5 | 205 |
| 6 | CAO – 6 | -11 | 32W | 223 | 35W | 7 | 191 |
| 7 | EAC – 58 | -12 | 09W | 195 ⚠ | 07W | ~11 | 197 |
| 8 | HS – 1 | -7 | 15E | 176 | 12E | ~0.5 | 203 |
| 9 | HS – 1 | -3 | 53E | 138 | 50E | 2 | 202 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.