2018 March 27 Sun - UFO transit on spotless Sun
The solar surface is spotless (in white light) since March 21.
Unfortunately, I can capture only 50 white-light images (in about 6 minutes after setting up my equipment) before the sky is covered with clouds.
An UFO (mostly likely a high-flying bird) provide some unexpected excitement at 01:40:26 UTC
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 March 27 Sun - UFO transit on spotless Sun
2018 March 27 Sun - UFO transit on spotless Sun
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- Sun_00006 01_36_42Z.jpg (107.27 KiB) 已瀏覽 512 次
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- Sun_00031 01_40_26Z.jpg (110.88 KiB) 已瀏覽 512 次
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- Sun_00033 01_40_28Z.jpg (109.69 KiB) 已瀏覽 512 次
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- Sun_00034 01_40_29Z.jpg (109.27 KiB) 已瀏覽 512 次
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- Sun_00037 01_40_31Z.jpg (106.13 KiB) 已瀏覽 512 次
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