Observation 15.04.2016 · Istanbul University Observatory Solar Observations

Daily Sunspot Evaluation

Observation Details Friday, 15 April 2016

No: 17721
Date: 2016 / 04 / 15,264
Time: 06:20 UT
Seeing: 3 / 5
Number of groups (g): 3
Number of spots (f): 43
Relative number (R): 73
L_f: 3
P₀: -25.98°
B₀: -5.57°
L₀: 327.32°
Observer: Korhan YELKENCİ

Remarks: Kenar Titremesi

15.04.2016 photosphere drawing

Sunspot groups

No	Group (class – spots)	B	Δ L	L	Δ L_f	U	NOAA
1	AX_ – 1	13	57W	25	60W	-
2	FKI – 41	11	12W	339	15W	19.4
3	AX_ – 1	10	64E	264	61E	-

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