Contains:  Solar system body or event
AR 2786 h-alpha 2020-11-30, Nicolas Escurat

AR 2786 h-alpha 2020-11-30

Acquisition type: Lucky imaging
AR 2786 h-alpha 2020-11-30, Nicolas Escurat

AR 2786 h-alpha 2020-11-30

Acquisition type: Lucky imaging

Equipment

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Acquisition details

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Description

Daystar Quark Chromosphere on Sigma 60-600mm with front Baader D-ERF 110mm.

Focal length set with the lens 600mm

Daystar screwed 3mm in back of the normal focal point of the lens : resulting focal lenth 607mm (2610mm with 4.3x daystar integrated barlow)

Internal adjustment of the diaphragm to F/D 8 (provides more contrast)

Imaging with ZWO ASI 1600 MM : image reduced to 0,6"/pixel

Comments

Histogram

AR 2786 h-alpha 2020-11-30, Nicolas Escurat