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Betelgeuse Updates: 2020.02.19. 베텔게우스 정보 업데이트: 2020.02.19. Betelgeuse Updates: 2020.02.19. Don’t panic! ^^ Betelgeuse is not likely to undergo a supernova explosion anytime soon. The red supergiant star Betelgeuse appears to have finally stopped its unprecedented dimming. It's been brightening in brightness over the last few days. Bum-Suk Yeom. http://cometsky.com/astrophotos/betelgeuse_lc_20191119-20200219_AAVSO_web_bsyeom.jpg + Large photo: http://com.. 2020. 2. 20.
Sunspot 태양 흑점 Sunspot. 태양 흑점.2019. 03. 22. 01:59 UTC (10:59 KST). Bum-Suk Yeom. 염범석. http://cometsky.com/astrophotos/sunspot_20190322_large_bsyeom.jpg Taken by Bum-Suk Yeom on March 22, 2019 UTC @ Iksan, South Korea. Details: 01:59 UTC (10:59 KST), Takahashi TOA-150 Apo refractor (f=1100mm, F7.3), Canon EOS 5D Mark III camera, Solar filter, ISO 100, f/7, 1/1600 sec x 3. 2019. 03. 22. 10:59 KST, 다카하시 토아-150 아포.. 2019. 3. 24.
Sunspot moving (movie). 2019.03.19. - 03.22. Sunspot moving (movie). 72 hour. 1024 x 1024 pixels. 2019. 03. 19. 10:00 - 03. 22. 10:00 UTC. https://youtu.be/GuT2wmVsFRo A movie from NASA's Solar Dynamics Observatory (SDO) shows the sunspot's rapid growth. 태양 흑점 움직임. 2019. 03. 19. 19:00 - 03. 22. 19:00 KST. 염범석. Bum-Suk Yeom. Credit: Solar Dynamics Observatory (SDO), NASA. 2019. 3. 22.
Bootes and Corona Borealis (Constellation) 목동자리와 북쪽왕관자리 Bootes and Corona Borealis (Constellation). Boötes constellation.목동자리와 북쪽왕관자리. http://cometsky.com/astrophotos/Boo_CrB_20190311_web_bsyeom.jpg http://cometsky.com/astrophotos/Boo_CrB_20190311_web_ex_kor_bsyeom.jpg http://cometsky.com/astrophotos/Boo_CrB_20190311_web_ex_en_bsyeom.jpg Taken by Bum-Suk Yeom on March 10, 2019 UTC @ Jangsu, South Korea. Details: 20:10 UTC (05:10 March 11 KST), Sigma .. 2019. 3. 18.
10월의 천체 관측 대상들 10월의 천체 관측 대상들.The celestial objects in the October Sky. 염범석(Bum-Suk Yeom). http://cometsky.com/astrophotos/observing_objects_10_october_bsyeom_final_web.jpg Large size:http://cometsky.com/astrophotos/observing_objects_10_october_bsyeom_final_large.jpg 2018. 10. 2.
The white dwarf Sirius B and Sirius A 시리우스 B와 A The white dwarf Sirius B and Sirius A. 백색왜성인 시리우스 B와 시리우스 A. http://cfile28.uf.tistory.com/original/99958E445AB8654010F5C0 Movie(72 sec) : https://youtu.be/66IjXL4ROOc Taken by Bum-Suk Yeom on March 13, 2018 UTC @ Iksan, South Korea. Details: 13:09 UTC (22:09 KST), APM Apo 12inch Refractor, ASI 290MC camera, FPS (avg.)=119, Shutter=8.357ms, Gain=438, Gamma=75, 60 sec x 1. With an apparent magnit.. 2018. 3. 26.
The white dwarf Sirius B and Sirius A 시리우스 B와 A The white dwarf Sirius B and Sirius A. 640 x 480 pixels.백색왜성인 시리우스 B와 시리우스 A. https://youtu.be/66IjXL4ROOc Taken by Bum-Suk Yeom on March 13, 2018 UTC @ Iksan, South Korea. Details: 13:09 UTC (22:09 KST), APM Apo 12inch refractor, ZWO ASI 290MC camera. With an apparent magnitude of −1.46, Sirius is the brightest star system in the night sky. The brighter component, termed Sirius A, is a main-seq.. 2018. 3. 15.
Vega and Arcturus Vega and Arcturus. 베가와 아크투루스. http://cfile23.uf.tistory.com/original/21363E4B58716A410ABE28 Blue-tinged white star, Vega and Yellow-orange star, Arcturus.청백색의 베가(직녀)와 노란-오렌지색의 아크투루스. The images are not to scale. Image credit: Bum-Suk Yeom. 2017. 1. 8.

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