Observation 19.05.2016 · Istanbul University Observatory Solar Observations

Daily Sunspot Evaluation

Observation Details Thursday, 19 May 2016

No: 17754
Date: 2016 / 05 / 19,347
Time: 08:20 UT
Seeing: 3 / 5
Number of groups (g): 3
Number of spots (f): 9
Relative number (R): 39
L_f: 2
P₀: -19.59°
B₀: -2.14°
L₀: 236.84°
Observer: Başar COŞKUNOĞLU

Remarks: Kenar Titremesi

19.05.2016 photosphere drawing

Sunspot groups

No	Group (class – spots)	B	Δ L	L	Δ L_f	U	NOAA
1	HA_ – 2	22	60W	296	62W	2.4
2	AX_ – 6	-18	17W	254	19W	2.4
3	HH_ – 1	-7	15E	221	13E	3.8

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