Castor A and B.

카스토르 A와 B.

Castor A and B.

Castor is the second-brightest object in the constellation of Gemini and one of the brightest stars in the night sky. It appears singular to the naked eye, but it is actually a sextuple star system organized into three binary pairs. Castor is a multiple star system made up of six individual stars; there are three visual components, all which are spectroscopic binaries. The apparent magnitude of Castor A, B, and C stars is +1.9, +3.0, and +9.8.

카스토르 A와 B.

카스토르(Castor) 쌍둥이자리에서 두 번째로 밝은 별이며 밤하늘에서 가장 밝은 별 중의 하나이다. 카스토르는 맨눈으로는 하나의 별로 보이나 사실은 3개의 쌍성으로 이루어진 6중성계이다. 또한 이들 3개의 쌍성은 각각 분광 쌍성이다. 카스토로 A, B, C의 겉보기 등급은 각각 1.9, 3.0, 9.8등급이다. 따라서 카스토르 C를 A, B와 같이 촬영하는 것은 어렵다.

Taken by Bum-Suk Yeom on January 21, 2018 UTC @ Iksan, South Korea. Details: 12:54 UTC (21:54 KST), APM Apo 12inch Refractor, ASI 224MC camera, 30s movie x 1.

Castor A and B.

카스토르 A와 B.

Castor A and B.

Castor is the second-brightest object in the constellation of Gemini and one of the brightest stars in the night sky. It appears singular to the naked eye, but it is actually a sextuple star system organized into three binary pairs. Castor is a multiple star system made up of six individual stars; there are three visual components, all which are spectroscopic binaries. The apparent magnitude of Castor A, B, and C stars is +1.9, +3.0, and +9.8.

카스토르 A와 B.

카스토르(Castor) 쌍둥이자리에서 두 번째로 밝은 별이며 밤하늘에서 가장 밝은 별 중의 하나이다. 카스토르는 맨눈으로는 하나의 별로 보이나 사실은 3개의 쌍성으로 이루어진 6중성계이다. 또한 이들 3개의 쌍성은 각각 분광 쌍성이다. 카스토로 A, B, C의 겉보기 등급은 각각 1.9, 3.0, 9.8등급이다. 따라서 카스토르 C를 A, B와 같이 촬영하는 것은 어렵다.

Taken by Bum-Suk Yeom on January 21, 2018 UTC @ Iksan, South Korea. Details: 12:54 UTC (21:54 KST), APM Apo 12inch Refractor, ASI 224MC camera, 30s movie x 1.

< Movie >

Partial Solar Eclipse (Movie). 2160x2160 pixels.
부분 일식 (동영상). 2160x2160 픽셀.

https://youtu.be/0vyUaYeXPsE

http://cometsky.com/astromovies/PSE_20190106_web_2160px_bsyeom.mp4

http://cometsky.com/astromovies/PSE_20190106_web_2160px_bsyeom.avi

08:45 ~ 11:14, 06 January 2019 KST.
Bum-Suk Yeom(염범석). Iksan, South Korea.

Winter Hexagon & Milky Way (New version).

겨울철 대육각형과 은하수 (New Version).

염범석(Bum-Suk Yeom).

2018. 12. 10.

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

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

Summary Data for 2019 January’s Comets.

2019년 1월 주요한 혜성들.

http://cometsky.com/astronews/comet_chasing_in_01_jan_2019_bsyeom.jpg

염범석. Bum-Suk Yeom.

Credit: Bum-Suk Yeom, http://cometchasing.skyhound.com.

Finder chart for Comet 46P/Wirtanen.

2018. 12. 12. ~ 12. 18. 

위르타넨 혜성 (46P)의 탐색 성도.

기간: 2018. 12. 12. ~ 12. 18. 

날짜의 기준 시간: 23시 (한국 시간). 

http://cometsky.com/astronews/46p_wirtanen_path_web_bsyeom.jpg

Large size: http://cometsky.com/astronews/46p_wirtanen_path_bsyeom.jpg

위르타넨 혜성의 관측 최적기는 12월 12일에서 12월 18일 사이입니다. 현재 밝기는 약 4.0등급입니다.

염범석. Bum-Suk Yeom.

Comet 46P/Wirtanen.

위르타넨 혜성.

http://cometsky.com/astrophotos/comet_46p_wirtanen_20181210_web_bsyeom.jpg

Taken by Bum-Suk Yeom on December 9, 2018 UTC @ Jangsu, South Korea. Details: 15:09 UTC (00:09 December 10 KST), Samyang 135mm f/2 ED UMC lens with EOS 5D Mark III camera, SkyGuider mount, Optolong L-Pro filter, ISO 3200, f/4, 3 x 90 sec.

염범석 (Bum-Suk Yeom).

Winter Hexagon & Milky Way.

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

Large size: http://cometsky.com/astrophotos/winter_sky_ex_en_bsyeom.jpg

Winter Triangle & Milky Way.

겨울철 대삼각형과 은하수.

http://cometsky.com/astrophotos/winter_triangle_milky_way_20181105_web_bsyeom.jpg

http://cometsky.com/astrophotos/winter_triangle_milky_way_20181105_web_ex_bsyeom.jpg

< Large size photos >

http://cometsky.com/astrophotos/winter_triangle_milky_way_20181105_medium_bsyeom.jpg

http://cometsky.com/astrophotos/winter_triangle_milky_way_20181105_medium_ex_bsyeom.jpg

The Winter Triangle is a prominent winter asterism formed by three stars prominent in the winter sky. The three stars that compose the Winter Triangle are Sirius (Canis Major), Procyon (Canis Minor), and Betelgeuse (Orion).

겨울철 대삼각형을 이루는 3개의 별은 시리우스(큰개자리), 프로키온(작은개자리), 그리고 베텔게우스(오리온자리) 입니다.

엷은 구름이 계속 껴 있는 상태라서 투명한 하늘은 아니었지만 그래도 사진이 나름대로 잘 나왔네요. 날씨 좋은 날에 다시 촬영해야겠습니다.

염범석. Bum-Suk Yeom.

Taken by Bum-Suk Yeom (www.cometsky.com) on November 4, 2018 UTC @ Jangsu, South Korea. Details: 20:08 UTC (05:08 November 5 KST) Sigma Art 14-24mm F2.8 zoom lens (at 14mm) with EOS 5D Mark III camera, SkyGuider mount, Geratin filter (Lee soft #1 filter), ISO 3200, f/4, 3 x 60 sec  (total 3 min) stack.

Winter Hexagon & Milky Way.

겨울철 대육각형과 은하수.

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_ex_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_ex_en_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_rot_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_rot_ex_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_web_rot_ex_en_bsyeom.jpg

< Large photos >

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_large_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_large_ex_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_large_rot_bsyeom.jpg

http://cometsky.com/astrophotos/winter_hexagon_milky_way_20181105_large_rot_ex_bsyeom.jpg

The Winter Hexagon, also known as the Winter Circle, is a prominent winter asterism formed by seven stars prominent in the winter sky. The six stars that compose the Winter Hexagon are Sirius (Canis Major), Rigel (Orion), Aldebaran (Taurus), Capella (Auriga), Pollux (Gemini), and Procyon (Canis Minor). Sirius and Procyon are also part of the Winter Triangle, a smaller asterism that these two stars form with Betelgeuse in Orion.

겨울철 육각형을 이루는 6개의 별은 시리우스(큰개자리), 리겔(오리온자리), 알데바란(황소자리), 카펠라(마차부자리), 폴룩스(쌍둥이자리), 프로키온(작은개자리)입니다. 또한 시리우스, 프로키온, 그리고 베텔게우스는 겨울철의 대삼각형을 이루는 별들입니다.

cf. 촬영 당일에 구름이 왔다갔다하는 상황이라 별자리와 겨울철 은하수가 선명하게 나오지는 않았네요. 14mm로 촬영한 이 사진은 주변부를 약간 잘라냈습니다.

염범석. Bum-Suk Yeom.

Taken by Bum-Suk Yeom (www.cometsky.com) on November 4, 2018 UTC @ Jangsu, South Korea. Details: 19:43 UTC (04:43 November 5 KST) Sigma Art 14-24mm F2.8 zoom lens (at 14mm) with EOS 5D Mark III camera, SkyGuider mount, Geratin filter (Lee soft #1 filter), ISO 800, f/5.6, 4 x 420 sec  (total 28 min) stack.