2018 April 13 Sun - prominences on E limb
Prominences show up on the E, NEE, SSE, SW and SSW limb.
These images are on the E limb.
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 13 Sun - prominences on E limb
2018 April 13 Sun - prominences on E limb
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- prominence-06_49_15Z.jpg (93.52 KiB) 已瀏覽 225 次
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- prominence-06_50_01Z.jpg (90.17 KiB) 已瀏覽 225 次
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- prom-E-07_06_45Z.jpg (61.43 KiB) 已瀏覽 225 次
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- prom-E-07_07_25Z.jpg (92.24 KiB) 已瀏覽 225 次
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- prom-E-07_08_08Z.jpg (76.94 KiB) 已瀏覽 225 次
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- prom-E-07_18_56Z.jpg (49.87 KiB) 已瀏覽 225 次
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- prom-E-07_19_21Z.jpg (39.35 KiB) 已瀏覽 225 次
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- prom-E-07_30_51Z.jpg (56.82 KiB) 已瀏覽 225 次
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- prom-E-07_31_17Z.jpg (63.46 KiB) 已瀏覽 225 次
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- prom-E-07_32_08Z.jpg (70.23 KiB) 已瀏覽 225 次
Re: 2018 April 13 Sun - prominences on E limb
more images
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- prom-E-07_32_28Z.jpg (69.27 KiB) 已瀏覽 224 次
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- prom-E-07_44_58Z.jpg (58.9 KiB) 已瀏覽 224 次
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- prom-E-07_46_04Z.jpg (62.4 KiB) 已瀏覽 224 次
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- prom-E-07_57_50Z.jpg (77.22 KiB) 已瀏覽 224 次
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