Daily Sunspot Evaluation
Observation Sheet Thursday, 2 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)
- 52
- Relative number (R)
- 132
- Observer
- YK
- Reading
- all checks consistent
- File
- 19890302.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 15 | 80W | 113 | 82W | - | 405 |
| 2 | HH – 8 | 11 | 22W | 55 | 24W | 4.5 | 406 |
| 3 | DKC – 19 | 18 | 09W | 42 | 11W | 7.75 | 407 |
| 4 | DAI – 11 | 23 | 40E | 353 | 38E | 9.0 | 408 |
| 5 | AX – 1 | 16 | 71E | 322 | 69E | - | 409 |
| 6 | AX – 1 | -19 | 62W | 95 | 64W | - | 410 |
| 7 | CAO – 7 | -20 | 11W | 44 | 13W | 8.0 | 411 |
| 8 | AX – 3 | -20 | 43E | 350 | 41E | 3.0 | 412 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.