Daily Sunspot Evaluation
Observation Sheet Thursday, 15 March 1984
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)
- 7
- Number of spots (f)
- 26
- Relative number (R)
- 96
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19840315.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 2 | 14 | 42E | 160 | 41E | 5 | 43 |
| 2 | ARX – 1 | -11 | 85W | 287 | 86W | 1 | 43 |
| 3 | HAX – 1 | -15 | 74W | 276 | 75W | 1.5 | 44 |
| 4 | DAC – 10 | -10 | 55W | 257 | 56W | 10 | 44 |
| 5 | CAO – 2 | -17 | 30W | 232 | 31W | 6 | 45 |
| 6 | DAC – 8 | -4 | 13W | 215 | 14W | 8.5 | 46 |
| 7 | BRO – 2 | -21 | 46E | 156 | 45E | 3.25 | 47 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.