2018 April 30 Sun - prominences on NE limb
Prominences show up on the E, SE, and NE limb.
This one on the NE limb shows dispersion of materilas.
As the slow motion is still unavailable, I have to continue with 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 (thus high gain) 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.
2018 April 30 Sun - prominences on NE limb
2018 April 30 Sun - prominences on NE limb
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- prominence-06_32_05Z.jpg (70.39 KiB) 已瀏覽 237 次
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- prominence-06_35_23Z.jpg (72.27 KiB) 已瀏覽 237 次
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- prom-NE-06_54_58Z.jpg (79.55 KiB) 已瀏覽 237 次
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- prom-NE-07_00_45Z.jpg (90.87 KiB) 已瀏覽 237 次
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- prom-NE-07_01_04Z.jpg (94.65 KiB) 已瀏覽 237 次
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- prom-NE-07_05_31Z.jpg (97.77 KiB) 已瀏覽 237 次
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- prom-NE-07_07_33Z.jpg (61.72 KiB) 已瀏覽 237 次
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- prom-NE-07_12_01Z.jpg (89.01 KiB) 已瀏覽 237 次
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- prom-NE-07_14_12Z.jpg (101.07 KiB) 已瀏覽 237 次
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- prom-NE-07_20_26Z.jpg (79.39 KiB) 已瀏覽 237 次
Re: 2018 April 30 Sun - prominences on NE limb
more images
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- prom-NE-07_27_48Z.jpg (87.6 KiB) 已瀏覽 236 次
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- prom-NE-07_33_09Z.jpg (81.88 KiB) 已瀏覽 236 次
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- prom-NE-07_37_27Z.jpg (84.96 KiB) 已瀏覽 236 次
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- prom-NE-07_38_10Z.jpg (67.04 KiB) 已瀏覽 236 次
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- prom-NE-07_40_48Z.jpg (84.16 KiB) 已瀏覽 236 次
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