Daily Sunspot Evaluation
Observation Sheet Monday, 3 September 1973
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)
- 101
- Relative number (R)
- 191
- Observer
- FA
- Reading
- all checks consistent
- File
- 19730903.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 17 | 23 | 02°E | 201 | 165 | ||
| 2 | H – 9 | 14 | 38°E | 164 | 159 | ||
| 3 | B – 4 | -13 | 68°E | 135 | 166 | ||
| 4 | E – 17 | -14 | 42°E | 161 | 162 | ||
| 5 | E – 28 | -15 | 11°E | 192 | 157 | ||
| 6 | A – 1 | -10 | 15°W | 218 | 165 | ||
| 7 | D – 13 | -13 | 42°W | 245 | 158 | ||
| 8 | B – 11 | 5 | 43°W | 252 | 160 | ||
| 9 | J – 1 | 15 | 57°W | 260 | 155 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.