Daily Sunspot Evaluation
Observation Sheet Tuesday, 28 March 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)
- 8
- Number of spots (f)
- 56
- Relative number (R)
- 136
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19890328.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 12 | 79W | 130 | 82W | - | |
| 2 | HIS – 1 | 14 | 06W | 57 | 09W | 1.5 | |
| 3 | HA – 3 | 20 | 20E | 31 | 17E | 1.5 | |
| 4 | BRO – 6 | 14 | 48E | 3 | 45E | 5.0 | |
| 5 | ? – 2 | 20 | 79E | 332 | 76E | - | |
| 6 | BXO – 5 | -9 | 46W | 97 | 49W | 3.5 | |
| 7 | EKC – 33 | -26 | 16W | 67 | 19W | 10.5 | |
| 8 | BXI – 4 | -8 | 02W | 54 | 06W | 3.0 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.