오늘의 천체사진(APOD) 번역집 2013-4 Bigcrunch 소개글

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오늘의 천체사진(APOD) 번역집 2013-4 Bigcrunch 소개글 오늘의 천체사진(APOD) 번역집 2013-4 BigCrunch 소개글 NASA에서 운영하는 오늘의 천체사진(Astronomy Picture of the Day, 이하 APOD)사이트는 1995년 6월 16일 첫번째 천체사진을 발표한 이래, 지금까지 하루도 빠짐없이 천체관련 사진 또는 동영상을 발표하고 있습니다. 본 블로그 북은 2013년 APOD를 통해 발표된 천체사진의 번역 모음집 두번째 편으로서 2013년 11월 1일부터 12월 31일까지 총 51개의 APOD 번역내역이 담겨 있습니다. 참고 : 2013년 발표 천체사진 중 과거에 이미 발표된 내용이 반복 게재된 경우, 그리고 동영상이 게재되어 본 블로그북 형식으로 담아낼 수 없는 경우는 제외되었으니 이점 참고하여 주십시오. 목차 1 목성의 삼중 일식 6 2 하이브리드 일식 9 3 뉴욕 상공의 일식 13 4 노르웨이 상공의 오로라 16 5 1만 3천미터 상공의 일식 20 6 우간다 상공의 일식 23 7 러브조이 혜성과 M44 26 8 불꽃놀이와 번개 사이의 혜성 30 9 개기일식 동안 촬영된 왕성한 활동력의 태양 33 10 토성의 그림자 속에서 바라본 토성 36 11 NGC 1097 39 12 태양의 스펙트럼 42 13 아이손 혜성 45 14 맥너트 혜성의 웅장한 꼬리 48 15 아이슬란드 상공의 오로라와 멋진 구름 51 16 4U1630-47 의 블랙홀 제트 54 17 미노타우르스 미사일의 궤적 57 18 캘리포니아 성운과 플레아데스 성단 60 19 스테레오 위성이 포착한 아이손 혜성 63 20 인디안 코브 상공의 헤일-밥 혜성 66 21 NGC 4921 69 22 시에라 네바다 산맥 위의 모자 구름 72 23 NGC 1999 75 24 태양 주위를 통과하기 전과 후의 아이손 혜성 79 25 은하 중심을 향해 발사되고 있는 레이저 82 26 M63 앞을 지나는 러브조이 혜성 86 27 로 오피유키(Rho Ophiuchi)의 찬란한 구름들 89 28 러브조이 혜성(C/2013 R1) 92 29 Abell 7 95 30 감마선을 내뿜는 지구와 하늘 98 31 구제프 크레이터 전경 - 에베레스트 파노라마(the Everest panorama) 102 32 풍차 위의 러브조이 혜성 105 33 세이퍼트의 6중 은하(Seyfert's Sextet) 108 34 지구에서 가장 추운 곳 111 35 알니탁, 알니렘, 민타카 114 36 다샨바오 습지 상공의 쌍동이 자리 유성우 118 37 NGC 7635 121 38 유로파 124 39 달에 내려선 탐사로봇 위투(Yutu) 127 40 테이드 화산 위의 유성우 130 41 핀란드에서 촬영된 빛기둥 133 42 다채로운 색깔의 달 136 43 호수의 세계 타이탄 140 44 태양활동관측위성이 다파장으로 바라본 태양 144 45 칠레에서 촬영된 쌍동이자리 유성우 148 46 Sharpless 2-308 151 47 M33의 수소구름 154 48 하트 성운 중심의 Melotte 15 159 49 알라스카의 오로라 162 50 환상적인 프렉탈의 풍경 165 51 말머리 성운 169 01 목성의 삼중 일식 목성의 삼중 일식 2013.11.16 22:02 세계표준시 10월 12일 새벽 5시 28분에 벨기에에서 촬영된 이 사진은 천체망원경에 웹카메라를 이용하여 촬영한 것으로서 목성의 달이 목성 상공을 지나면서 그 그림자를 목성 대기에 드리우고 있는 모습을 보여주고 있다. 목성이 여러개의 달을 거느린 거대한 행성이긴 하지만 세 개의 달이 한꺼번에 식현상을 일으키는 것은 상대적으로 드문 사건이다. 사진에 담긴 세 개의 갈릴레오 위성은 가장 왼쪽 멀리에 있는 것이 칼리스토, 목성에 가장 가까이 위치한 것이 이오, 그리고 이오의 왼쪽 바로 아래에 있는 것이 유로파이다. 태양 빛을 반사해내고 있는 목성의 대기에 드리워진 그림자 중, 목성의 아래쪽 남극지역 근처에 가장 길쭉하게 보이는 것이 칼리스 토의 그림자이다. 이오의 그림자는 그 위쪽으로 대적반의 오른쪽에 있다. 목성의 삼중 일식 • 7 물론 이 모습을 목성에서 바라본다면 이 그림자가 지나는 곳에서는, 행성 지구에서 달에 의해 해가 가리워지는 현상을 일컫는 용어인 일식의 모습을 볼 수 있을 것이다. 출처 : NASA - 오늘의 천체사진(2013년 11월 2일 자) http://apod.nasa.gov/apod/ap131102.html 원문> Jupite r' s Triple S hado w Trans it Image Cre dit & Co pyright: Leo Aerts Explanatio n: This webcam and telescope image of banded gas giant Jupiter shows the transit of three shadows cast by Jupiter's moons in progress, captured in Belgian skies on October 12 at 0528 UT. Such a three shadow transit is a relatively rare event, even for a large planet with many moons. Visible in the frame are the three Galilean moons responsible, Callisto at the far left edge, Io closest to Jupiter's disk, and Europa below and just left of Io. Of their shadows on the sunlit Jovian cloud tops, Callisto casts the most elongated one near the planet's south polar region at the bottom. Io's shadow is above and right of Jupiter's Great Red Spot. Of course viewed from Jupiter's perspective, these shadow crossings could be seen as solar eclipses, analogous to the Moon's shadow crossing the sunlit face of planet Earth. 목성의 삼중 일식 • 8 02 하이브리드 일식 하이브리드 일식 2013.11.16 22:37 2005년 천상에 장관을 연출한 이벤트인 하이브리드 일식이 발생했었다. 하이브리드 일식은 관측자의 관측지역의 특성으로 개기일식과 금환일식이 함께 보이는 현상이다. 갈라파고스의 서쪽 2200킬로미터 길이로 펼쳐진 달의 그림자 궤적 중앙에서 부드럽게 흔들리는 배에 타고 있던 프레드 에스페낙 (Fred Espenak)에게 관측되는 일식은 짧은 순간 태양 원반이 달에 의해 완벽하게 가려지는 개기일식이었다. 그의 카메라는 팽창하는 태양 코로나와 태양의 모서리로부터 솟구쳐 오르는 홍염을 완벽하게 포착해냈다. 그러나 이 그림자 궤적의 가장 자리 부근, 파나마 페노노메 비행장에 있던 스테판 하인시우스(Stephan Heinsius)에게 달의 크기는 하이브리드 일식 • 10 금환일식을 연출하기에 충분할 만큼 태양에 잠겨드는 크기였고, 드라마틱한 불의 반지 모양을 연출하는 완벽한 금환일식을 볼 수 있 었다. 이 사진은 바로 이 두 지역에서 촬영한 사진을 비교한 것이다. 이와 같은 하이브리드 일식은 얼마나 드문 현상일까? 계산 결과, 21세기 일식의 고작 3.1%(총 224회 중 7회)만이 하이브리드 일식일 것이고 기원전 2천년부터 기원후 3천년까지 하이브리드 일식은 전체 일식의 5%밖에 되지 않는다. 오늘 하이브리드 일식은 아메리카 북동부에서 아프리카 지역까지 짧은 부분일식과 이어진 15초간의 금환일식으로서 그림자 궤적의 중심부 바깥쪽에서 가장 광범위하게 목격될 것이다. 출처 : NASA - 오늘의 천체사진(2013년 11월 3일 자) http://apod.nasa.gov/apod/ap131103.html 참고> 일식에 대한 또 다른 포스트 http://blog.daum.net/bigcrunch/11393412 http://blog.daum.net/bigcrunch/12338699 http://blog.daum.net/bigcrunch/12343334 http://blog.daum.net/bigcrunch/12345931 http://blog.daum.net/bigcrunch/12346118 http://blog.daum.net/bigcrunch/12346121 http://blog.daum.net/bigcrunch/12346325 http://blog.daum.net/bigcrunch/12346329 http://blog.daum.net/bigcrunch/12346332 http://blog.daum.net/bigcrunch/12346333 http://blog.daum.net/bigcrunch/12346340 http://blog.daum.net/bigcrunch/12346367 http://blog.daum.net/bigcrunch/12346371 http://blog.daum.net/bigcrunch/12346586 http://blog.daum.net/bigcrunch/12346590 http://blog.daum.net/bigcrunch/12346598 원문> A Rare Hybrid S o lar Ec lips e Image Cre dit & Co pyright: Left: Fred Espenak - Right: Stephan Heinsius Explanatio n: A spectacular geocentric celestial event of 2005 was a rare hybrid eclipse of the Sun - a total or an annular eclipse could be seen depending on the observer's location. For Fred Espenak, aboard a gently swaying ship 하이브리드 일식 • 11 within the middle of the Moon's shadow track about 2,200 kilometers west of the Galapagos, the eclipse was total, the lunar silhouette exactly covering the bright solar disk for a few brief moments. His camera captured a picture of totality revealing the extensive solar corona and prominences rising above the Sun's edge. But for Stephan Heinsius, near the end of the shadow track at Penonome Airfield, Panama, the Moon's apparent size had shrunk enough to create an annular eclipse, showing a complete annulus of the Sun's bright disk as a dramatic ring of fire. Pictures from the two locations are compared above. How rare is such a hybrid eclipse? Calculations show that during the 21st century just 3.1% (7 out of 224) of solar eclipses are hybrid while hybrids comprise about 5% of all solar eclipses over the period 2000 BC to AD 3000. Today's hybrid solar eclipse is most widely visible beyond the central shadow track as a brief partial eclipse from northeastern Americas through Africa, and along the track in an annular phase for only the first 15 seconds. 하이브리드 일식 • 12 03 뉴욕 상공의 일식 뉴욕 상공의 일식 2013.11.19 22:31 뉴욕 상공에 이와 같은 일출이 연출되는 것은 드문 일이다. 그러나 어제 태양은 부분적으로 달에 가린채로 떠올랐으며 이 모습은 북동 아메리카와 남아메리가 북부에서 관측되었다. 동시에 아프리카 상당부는 이미 한 낮이었고, 일식의 시작부터 끝까지를 관측할 수 있었다. 이 일식은 특이한 하이브리드 일식이었다. 지구 일부에서 사람들은 달이 태양을 완전히 가리기에는 크기가 작아서 완전히 태양을 가렸을 때 달을 둘러싼 불의 고리를 볼 수 있 었고 다른 지역의 사람들은 달이 태양을 충분히 가릴만한 크기를 가져서 개기일식을 볼 수 있었던 것이다. 달의 각크기가 이처럼 미묘한 차이를 연출한 것은 지구의 표면이 곡면인 것과 달의 궤도가 타원형이기 때문에 가능한 것이다. 이 사진에서는 뉴욕의 유명한 빌딩인 엠파이어 스테이트 빌딩이 부분일식을 연출하는 태양의 왼쪽으로 보이고 구름이 하늘을 장식하 뉴욕 상공의 일식 • 14 고 있다. 뉴욕에서 다음 일식은 - 약간의 부분일식을 보이는데 - 2014년 10월 24일 해질녁에 나타날 예정이다. 출처 : NASA - 오늘의 천체사진(2013년 11월 4일 자) http://apod.nasa.gov/apod/ap131104.html 원문> Ec lips e Ove r Ne w Yo rk Image Cre dit & Co pyright: Chris Cook Explanatio n: A sunrise over New York City rarely looks like this. Yesterday, however, the Sun rose partly eclipsed by the Moon as seen from much of the eastern North American and northern South America. Simultaneously, much of Africa, already well into daytime, saw the eclipse from beginning to end. The eclipse was unusual in that it was a hybrid -- parts of the Earth saw the Moon as too angularly small to cover the whole Sun, and so at maximum coverage left the Sun surrounded by a ring a fire, while other parts of the Earth saw the Moon as large enough to cover the entire Sun, and so at maximum coverage witnessed a total solar eclipse. Slight changes in the angular size of the Moon as seen from the Earth's surface are caused by the non-flatness of the Earth and the ellipticity of the Moon's orbit. Pictured above, the famous Empire State Building in New York City is seen to the left of the partially eclipsed Sun, adorned with scenic clouds.
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