Daily Sunspot Evaluation

Observation Sheet Saturday, 4 June 1966

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)
20
Relative number (R)
90
Observer
LT
Reading
all checks consistent
File
19660604.jpg
04.06.1966 photosphere drawing

Sunspot groups

NoGroup (class – spots) BΔ LLΔ LfU Margin no.
1A – 1 364114°E 222204
2C – 5 2355°E -181180
3B – 3 2147°W -283282
4B – 3 2435°W 271270
5J – 2 3222°W 258257
6A – 3 3617°W 253252
7B – 3 142°W 238237

Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.

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