Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 May 1973
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)
- 5
- Number of spots (f)
- 48
- Relative number (R)
- 98
- Observer
- HM
- Reading
- all checks consistent
- File
- 19730522.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 7 | 1 | 53E | 85 | 95 | ||
| 2 | A – 1 | -5 | 44E | 94 | 97 | ||
| 3 | A – 4 | -5 | 52E | 86 | 36 | ||
| 4 | A – 2 | -12 | 62W | 200 | 87 | ||
| 5 | H – 34 | 12 | 12W | 150 | 88 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.