Daily Sunspot Evaluation
Observation Sheet Monday, 4 May 1987
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)
- 2
- Relative number (R)
- 22
- Observer
- TS
- Reading
- counts consistent, some coordinates doubtful
- File
- 19870504.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HSX – 1 | -25 | 30E | 118.5 ⚠ | 30E | 2 | 26 |
| 2 | HAX – 1 | -33 | 86E | 122.5 ⚠ | 86E | 5 | 27 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.