Daily Sunspot Evaluation
Observation Sheet Friday, 29 April 1983
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)
- 10
- Number of spots (f)
- 85
- Relative number (R)
- 185
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19830429.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 20 | 19 | 13W | 134 | 16W | 6.5 | 109 |
| 2 | DAO – 7 | 14 | 13W | 134 | 16W | 9 | 109 |
| 3 | HAX – 2 | -10 | 56W | 177 | 59W | 4 | 109 |
| 4 | CAI – 6 | -12 | 12W | 133 | 15W | 5 | 102 |
| 5 | DKO – 8 | -18 | 03W | 124 | 06W | 5 | 103 |
| 6 | OAI – 26 | -15 | 05E | 116 | 02E | 8.5 | 111 |
| 7 | CAI – 9 | -4 | 08E | 113 | 05E | 3.5 | 104 |
| 8 | CAI – 5 | -18 | 13E | -108 ⚠ | 10E | 3.5 | 113 |
| 9 | ARX – 1 | -14 | 13E | 108 | 10E | - | 114 |
| 10 | HAX – 1 | -9 | 62E | 59 | 59E | 2.5 | 115 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.