Observation 13.04.2019 · Istanbul University Observatory Solar Observations

Daily Sunspot Evaluation

Observation Details Saturday, 13 April 2019

No: 18620
Date: 2019 / 04 / 13,285
Time: 06:50 UT
Seeing: 3 / 5
Number of groups (g): 2
Number of spots (f): 2
Relative number (R): 22
L_f: 3
P₀: -26.13°
B₀: -5.78°
L₀: 300.78°
Observer: Korhan YELKENCİ

Remarks: Bulutlar Arasında

13.04.2019 photosphere drawing

Sunspot groups

No	Group (class – spots)	B	Δ L	L	Δ L_f	U	NOAA
1	HH_ – 1	6	03.6E	297	00.6E	3.2
2	AX_ – 1	6	07.2E	294	04.2E	-

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