Daily Sunspot Evaluation
Observation Sheet Friday, 23 June 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)
- 15
- Number of spots (f)
- 113
- Relative number (R)
- 263
- Observer
- HÇ
- Reading
- all checks consistent
- File
- 19890623.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 30 | 76W | 56 | 78W | - | 392 |
| 2 | AX – 1 | 18 | 36W | 16 | 38W | - | 395 |
| 3 | DAO – 17 | 21 | 16W | 356 | 18W | 10 | 303 |
| 4 | EKC – 20 | 25 | 40E | 300 | 38E | 12.5 | 373 |
| 5 | AR – 1 | 15 | 54E | 286 | 52E | 0.5 | 375 |
| 6 | AX – 2 | 25 | 55E | 285 | 53E | 0.5 | 375 |
| 7 | HA – 1 | 7 | 59E | 282 | 57E | 2 | 374 |
| 8 | DAO – 6 | 20 | 65E | 276 | 63E | 9 | 374 |
| 9 | AR – 2 | 20 | 75E | 266 | 73E | - | 374 |
| 10 | HK – 3 | -20 | 28W | 8 | 30W | 3 | 303 |
| 11 | AX – 2 | -13 | 22W | 2 | 24W | 2 | 373 |
| 12 | HA – 3 | -17 | 05E | 335 | 03E | 3 | 373 |
| 13 | FKC – 38 | -19 | 34E | 306 | 32E | 18.5 | 373 |
| 14 | EAO – 10 | -20 | 54E | 286 | 52E | 14 | 373 |
| 15 | HA – 6 | -17 | 70E | 270 | 68E | 4 | 373 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.