2021 March 28 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
AR12810 is today located at (N18W86). The plages are barely visible on the solar limb.
AR12811 is today located at (N20W21). Large plages patches are visible, but there is no sunspot.
AR12812 is located at (N21E01). Only the leading sunspot with penumbrae is visible. The bright plages are mostly to the NE of the sunspot.
sunspot count: group=1, sunspot=3, R=13
Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor
Camera : ASI174MM
focal length : 500 mm f/6.25
filter: Lunt Ca-K Module B1200
approximately north is up, east to the left
2021 March 28 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
2021 March 28 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
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Re: 2021 March 28 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
Images of AR12812
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- cak-AR12811-812-100358.png (104.21 KiB) 已瀏覽 52 次
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- cak-AR12811-812-100438.png (95.38 KiB) 已瀏覽 52 次
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- cak-AR12811-812-100546.png (240.56 KiB) 已瀏覽 52 次
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- cak-AR12811-812-100834.png (250.06 KiB) 已瀏覽 52 次
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- cak-AR12811-812-100904.png (245.88 KiB) 已瀏覽 52 次
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- cak-AR-E-100518.png (96.19 KiB) 已瀏覽 52 次
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- cak-AR-E-100523.png (247.48 KiB) 已瀏覽 52 次
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- cak-AR-E-100912.png (261.65 KiB) 已瀏覽 52 次
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- cak-AR-E-100916.png (260.88 KiB) 已瀏覽 52 次
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