Observation 26.07.2011 · Istanbul University Observatory Solar Observations

Daily Sunspot Evaluation

Observation Details Tuesday, 26 July 2011

No: 16271
Date: 2011 / 07 / 26,257
Time: 06:10 UT
Seeing: 4 / 5
Number of groups (g): 3
Number of spots (f): 11
Relative number (R): 41
L_f: 3
P₀: 8.31°
B₀: 5.30°
L₀: 52.34°
Observer: Asuman GÜLTEKİN

26.07.2011 photosphere drawing

Sunspot groups

No	Group (class – spots)	B	Δ L	L	Δ L_f	U	NOAA
1	BXO – 2	18	14W	66	17W	2.4
2	DRO – 8	19	55E	357	52E	7.1
3	?__ – 1	16	81E	331	78E	1.1

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