Daily Sunspot Evaluation
Observation Sheet Monday, 17 August 1992
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)
- 5
- Number of spots (f)
- 66
- Relative number (R)
- 116
- Observer
- TÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920817.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 15 | 17 | 48W | 316 | 51W | 8.5 | 306 |
| 2 | BXO – 4 | 16 | 35W | 303 | 38W | 3 | 304 |
| 3 | EHO – 38 | 16 | 12E | 256 | 09E | 15 | 302 |
| 4 | CRI – 8 | 14 | 57E | 211 | 54E | 9 | 305 |
| 5 | AXI – 1 | -24 | 42W | 304 ⚠ | 5W | - | 303 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.