Daily Sunspot Evaluation
Observation Sheet Tuesday, 23 January 1979
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)
- 17
- Number of spots (f)
- 114
- Relative number (R)
- 284
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790123.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 15 | 14 | 14E | 135 | 11E | 49 | |
| 2 | A – 1 | 18 | 15E | 134 | 12E | 58 | |
| 3 | C – 7 | 10 | 17E | 132 | 14E | 48 | |
| 4 | D – 14 | 21 | 37E | 112 | 34E | 46 | |
| 5 | J – 1 | -14 | 54E | 95 | 51E | 56 | |
| 6 | J – 3 | -13 | 43E | 106 | 40E | 57 | |
| 7 | J – 1 | -21 | 71E | 78 | 68E | 54 | |
| 8 | H – 5 | -24 | 58E | 91 | 55E | 55 | |
| 9 | D – 13 | -12 | 05E | 144 | 02E | 45 | |
| 10 | D – 14 | -26 | 08E | 141 | 05E | 50 | |
| 11 | J – 6 | -33 | 24W | 173 | 27W | 61 | |
| 12 | J – 2 | -36 | 30W | 179 | 33W | 62 | |
| 13 | G – 5 | -15 | 19W | 168 | 22W | 37 | |
| 14 | D – 6 | -24 | 61W | 210 | 64W | 53 | |
| 15 | J – 1 | 9 | 63W | 212 | 66W | 30 | |
| 16 | E – 18 | 19 | 23W | 172 | 26W | 38 | |
| 17 | A – 2 | 6 | 07W | 156 | 10W | 59 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.