Daily Sunspot Evaluation
Observation Sheet Sunday, 6 May 1990
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)
- 8
- Number of spots (f)
- 54
- Relative number (R)
- 134
- Observer
- HE
- Reading
- counts consistent, some coordinates doubtful
- File
- 19900506.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 20 | 43W | 161 | 46W | 2 | 183 |
| 2 | BRI – 5 | 15 | 25W | 143 | 28W | 5 | 192 |
| 3 | FKC – 21 | 17 | 40E | 78 | 37E | 16 | 188 |
| 4 | ? – 4 | -10 | 78W | 196 | 81W | 4 | 189 |
| 5 | HS – 1 | -13 | 05E | 113 | 02E | 2 | 185 |
| 6 | BRI – 12 | -13 | 24E | 81 ⚠ | 24E | 6.5 | 191 |
| 7 | CSI – 9 | -12 | 43E | 75 | 40E | 4 | 190 |
| 8 | ? – 1 | -18 | 88E | 30 | 85E | 2 | 193 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.