Daily Sunspot Evaluation
Observation Sheet Monday, 19 May 1997
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)
- 2
- Number of spots (f)
- 18
- Relative number (R)
- 38
- Observer
- HE
- Reading
- all checks consistent
- File
- 19970519.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 6 | 27 | 32W | 69 | 34W | 4 | 28 |
| 2 | CAO – 12 | 4 | 22E | 15 | 20E | 8 | 22 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.