Daily Sunspot Evaluation
Observation Sheet Thursday, 21 July 1994
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)
- 3
- Number of spots (f)
- 8
- Relative number (R)
- 38
- Observer
- TA
- Reading
- all checks consistent
- File
- 19940721.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 6 | 12 | 15°E | 330 | 16°E | 7° | 116 |
| 2 | HR – 1 | -13 | 08°W | 357 | 11°W | - | 115 |
| 3 | AX – 1 | -14 | 37°E | 312 | 34°E | - | 117 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.