2018 April 10 Sun - prominences on W limb

[PTS]

2018 April 10 Sun - prominences on W limb

AR12703 is on the W limb, but there is no sunspot today. I am not sure if the prominences on the W limb is associated with this AR or not.
It is the first time in 50 years that I have not slow motion for my observation, not even a slow-motion knob. All I can do is to push or pull the telescope to put the image in field. This task becomes very tedious when working on close-up imaging, and I have to use very short exposures to avoid blur images.

Telescope: AP Starfire EDT 155 mm f/9.
stopped to 80 mm (f/17.5) for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: ASI1600MM, 4656X3520 pixels (3.8 micron), binned 2
North is up, east is to the left.

[PTS]

more images

[PTS]

more images