Daily Sunspot Evaluation
Observation Sheet Saturday, 20 May 1989
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)
- 13
- Number of spots (f)
- 163
- Relative number (R)
- 293
- Observer
- HÇ
- Reading
- counts consistent, some coordinates doubtful
- File
- 19890520.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 8 | 12W | 143 ⚠ | 15W | 5 | |
| 2 | GAO – 8 | 17 | 46W | 117 | 49W | 13.5 | |
| 3 | EHC – 30 | 16 | 17W | 88 | 20W | 13 | |
| 4 | DKC – 60 | 21 | 14W | 85 | 17W | 10 | |
| 5 | CAO – 7 | 13 | 02W | 73 | 05W | 6 | |
| 6 | BXO – 6 | 32 | 21E | 50 | 18E | 5 | |
| 7 | AX – 1 | -10 | 52W | 123 | 55W | - | |
| 8 | BXO – 4 | -13 | 05W | 76 | 08W | 4 | |
| 9 | BRS – 16 | -18 | 02W | 73 | 05W | 6.5 | |
| 10 | AX – 1 | -6 | 10E | 61 | 07E | - | |
| 11 | HS – 1 | -27 | 15E | 56 | 12E | 2.25 | |
| 12 | HA – 7 | -18 | 28E | 43 | 25E | 2.5 | |
| 13 | DAC – 19 | -20 | 42E | 29 | 39E | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.