Daily Sunspot Evaluation
Observation Sheet Sunday, 27 August 1972
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)
- 9
- Number of spots (f)
- 58
- Relative number (R)
- 148
- Observer
- HM
- Reading
- all checks consistent
- File
- 19720827.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 2 | 16 | 79E | 353 | |||
| 2 | J – 3 | 14 | 64E | 8 | |||
| 3 | H – 5 | -8 | 37E | 35 | |||
| 4 | H – 18 | -19 | 09E | 63 | |||
| 5 | H – 8 | -15 | 07W | 79 | |||
| 6 | B – 7 | -15 | 20W | 92 | |||
| 7 | B – 8 | -4 | 38W | 110 | |||
| 8 | J – 1 | 9 | 44W | 116 | |||
| 9 | B – 6 | 18 | 03W | 75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.