Venus in daylight. 2021-07-15.
한낮의 금성. 

12:48 15 July 2021 KST (03:48 UTC) @ Iksan, South Korea.
 
http://cometsky.com/astrophotos/venus_20210715_bsyeom.jpg   

볼록한 반달 모양의 금성입니다. 

Taken by Bum-Suk Yeom(염범석).

Venus, 2021-07-15 03:48 UT, APM 304mm(12inch) F/7.5 APO Refractor, ZWO ASI462MC camera, Tele Vue 2.5x Powermate, ZWO ADC, Baader UV/IR cut filter, 60 sec video(6,193 image stack), Iksan, South Korea.

금성, 2021년 7월 15일 12:48 KST, APM 304mm F/7.5 APO 굴절망원경, ZWO ASI462MC 카메라, 텔레뷰 2.5배 파워메이트, ZWO 대기분산보정기(ADC), 바더 UV/IR 차단 필터, 60초 노출 동영상(6,193장 사진 합성), 전라북도 익산시.

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.

Mars, Saturn, Jupiter, and the Milky Way.

화성, 토성, 목성, 그리고 은하수.

Bum-Suk Yeom(염범석).

http://cometsky.com/astrophotos/mars_saturn_jupiter_mk_2018060617_img9889_web_bsyeom.jpg

http://cometsky.com/astrophotos/mars_saturn_jupiter_mk_2018060617_img9889_web_rot_bsyeom.jpg

Large photo: 

http://cometsky.com/astrophotos/mars_saturn_jupiter_mk_2018060617_img9889_medium_bsyeom.jpg

http://cometsky.com/astrophotos/mars_saturn_jupiter_mk_2018060617_img9889_medium_rot_bsyeom.jpg

Taken by Bum-Suk Yeom on June 16, 2018 UTC @ Jangsu, South Korea. Details: 16:00 UTC (01:00 June 17 KST), Sigma Art 14-24mm F2.8 lens (at 14mm) with EOS 5D Mark III camera, SkyTracker mount, Gelatin Soft filter,  ISO 3200, f/5.6, 60 sec x 3.

Summer Triangle and the Milky Way.

여름철 대삼각형과 은하수.

염범석 (Bum-Suk Yeom).

http://cometsky.com/astrophotos/summer_triangle_2018060617_img9915_web_bsyeom.jpg

http://cometsky.com/astrophotos/summer_triangle_2018060617_img9915_web_ex_bsyeom.jpg

Large photo: http://cometsky.com/astrophotos/summer_triangle_2018060617_img9915_medium_bsyeom.jpg

Taken by Bum-Suk Yeom on June 16, 2018 UTC @ Jangsu, South Korea. Details: 18:00 UTC (03:00 June 17 KST), Sigma Art 14-24mm F2.8 lens (at 24mm) with EOS 5D Mark III camera, SkyTracker mount, Gelatin Soft filter,  ISO 800, f/5.6,480 sec x 4 = 32 min.

Sagittarius, Scorpius, and the Milky Way.

궁수자리, 전갈자리, 그리고 은하수.

http://cometsky.com/astrophotos/sgr_sco_mk_2018060617_img9891_web_bsyeom.jpg

Large photo: http://cometsky.com/astrophotos/sgr_sco_mk_2018060617_img9891_medium_bsyeom.jpg

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on June 16, 2018 UTC @ Jangsu, South Korea. Details: 16:03 UTC (01:03 June 17 KST), Sigma Art 14-24mm F2.8 lens (at 24mm) with EOS 5D Mark III camera, SkyTracker mount, Gelatin Soft filter,  ISO 3200, f/5.6, 60 sec.

Mars, Saturn, Jupiter, and the Milky Way.

화성, 토성, 목성, 그리고 은하수.

http://cfile23.uf.tistory.com/original/990A36445B0C288F0E983D

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on May 13, 2018 UTC @ Jangsu, South Korea. Details: 16:23 UTC (01:23 May 14 KST), Sigma Art 14-24mm F2.8 lens (at 14mm) with EOS 5D Mark III camera, SkyTracker mount, Diffuser filter,  ISO 1600, f/2.8, 60 sec.

Mars, Saturn, and the Milky Way.

화성, 토성, 그리고 은하수.

http://cfile6.uf.tistory.com/original/993D3A485B0C28E9076384

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on May 13, 2018 UTC @ Jangsu, South Korea. Details: 16:44 UTC (01:44 May 14 KST), Sigma Art 14-24mm F2.8 lens (at 24mm) with EOS 5D Mark III camera, SkyTracker mount, Diffuser filter,  ISO 3200, f/2.8, 40 sec.

Mars, Saturn, and the Milky Way.

화성, 토성, 그리고 은하수.

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on May 13, 2018 UTC @ Jangsu, South Korea. Details: 18:50 UTC (03:50 May 14 KST), Sigma Art 14-24mm F2.8 lens with EOS 5D Mark III camera, SkyTracker mount, Diffuser filter, ISO 800, f/4, 300 sec x 4 = 1200 sec (20 min).

<Large Size>

The Summer Triangle and Milky Way.

여름철 대삼각형과 은하수.

https://t1.daumcdn.net/cfile/tistory/9984A83D5B06E2AA15?original

Large size (3240 x 2160 pixels) : https://t1.daumcdn.net/cfile/tistory/996768475B06E1091F?original

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on May 20, 2018 UTC @ Gapyeong, South Korea. Details: 17:06 UTC (02:06 May 21 KST), Sigma Art 35mm F1.4 lens with EOS 5D Mark III camera, SkyTracker mount, Lee soft #1 filter, ISO 800, f/4.5, 180 sec x 2 = 6 min.

The Summer Triangle is an astronomical asterism involving an imaginary triangle drawn on the northern hemisphere's celestial sphere, with its defining vertices at Altair, Deneb, and Vega, the brightest stars in the three constellations of Aquila, Cygnus, and Lyra, respectively. Altair shines below right, while fainter Deneb is found at bottom left and the brightest star of the Summer Triangle, Vega, at upper center. 

여름철 대삼각형은 거문고자리의 베가(직녀), 백조자리의 데네브, 그리고 독수리자리의 알타이르(견우)가 이루는 삼각형을 말합니다. 데네브(Deneb)는 사진의 왼쪽 아래에 있고, 여름철 대삼각형의 가장 밝은 별인 베가(Vega, 직녀)는 중앙의 위쪽에 있으며, 알타이르(Altair, 견우)는 오른쪽 아래에서 볼 수 있습니다. 

< Large size >

Summer Milky Way.

여름철 은하수.

Large size (3194 x 1796 pixels) : http://cfile30.uf.tistory.com/original/99B903445B04586F0751AB

염범석 (Bum-Suk Yeom).

Taken by Bum-Suk Yeom on May 20, 2018 UTC @ Gapyeong, South Korea. Details: 18:03 UTC (03:03 May 21 KST), Sigma Art 14-24mm F2.8 lens (at 18mm) with EOS 5D Mark III camera, Skytracker mount, ISO 800, f/5.6, 300 sec x 7 = 2100 sec (35 min).

Large size (3194 x 1796 pixels)