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DescriptionСвежий снимок Новой Центавра 2013.jpg Русский: У Альфы и Беты Центавра, двух ярчайших звезд южного неба, теперь появился компаньон — видимая невооруженным глазом Новая Центавра 2013.

Этот снимок сделан фото-посланником ESO (ESO Photo Ambassador) Юрием Белецким в обсерватории ESO Ла Силья (La Silla Observatory) в чилийской пустыне Атакама ранним утром в понедельник 9 декабря 2013 г.

Новая звезда была открыта Джоном Сичем (John Seach) из Австралии 2 декабря 2013 г., когда ее яркость приближалась к уровню, доступному для невооруженного глаза. Новая Центавра 2013 – самая яркая новая из всех, которые появлялись в этом тысячелетии.

Данное астрономическое событие принадлежит к разряду классических новых, и его не следует путать с вспышкой сверхновой. Классическая новая появляется в системе двойной звезды, в которой водород из звезды-спутника аккрецирует на поверхность главной звезды. Это ведет к неконтролируемому термоядерному взрыву, резко повышающему яркость главной звезды. Но в случае классической новой звезда не разрушается, как при вспышке сверхновой, а лишь сбрасывает внешний поверхностный слой вещества -- оболочку.

На снимке новая видна слева от Беты Центавра, более голубой и более высоко расположенной из двух ярких звезд в левой нижней части изображения. Южный Крест и Туманность Угольный Мешок тоже видны в верхней части фото.

На переднем плане слева – 3.6-метровый телескоп ESO, введенный в строй в 1976 году. Сейчас он работает со спектрографом HARPS, самым продуктивным охотником за экзопланетами на Земле. Ла Силья, расположенная в 600 км к северу от Сантьяго, на высоте в 2400 м над уровнем моря на краю чилийской пустыни Атакама, когда-то была первой обсерваторией ESO в Чили, крупнейшей обсерваторией своего времени.
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Source http://www.eso.org/public/images/potw1349a/
Author ESO/Y. Beletsky
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inception

9 December 2013

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SourceEuropean Southern Observatory
Credit/ProviderESO/Y. Beletsky
Image title
  • Alpha and Beta Centauri, two of the brightest stars in the southern sky, now have a new companion— the naked eye Nova Centauri 2013. This photo was taken by ESO Photo Ambassador Yuri Beletsky at ESO's La Silla Observatory in the Chilean Atacama Desert in the morning hours of Monday 9 December 2013. The nova was discovered by John Seach from Australia on 2 December 2013 as it approached nakedeye brightness. Nova Centaurus 2013 is the brightest nova to have occurred so far this millennium. This particular event is known as a classical nova, and is not to be confused with a supernova. Classical novae occur in binary star systems when hydrogen gas from the orbiting stellar partner is accreted onto the surface of the main star, causing a runaway thermonuclear event resulting in the brightening of the main star. In a classical novae the main star is not destroyed as is the case in a supernova. Instead, the star is dramatically brightened, and there is a simultaneous expansion of a debris shell. The nova appears in the picture just to the left of Beta Centauri, the bluer and higher of the two bright stars in the lower-right part of the image. The Southern Cross and the Coal Sack Nebula are also captured near the top of the picture. In front at the left is the ESO 3.6-metre telescope, inaugurated in 1976, it currently operates with the HARPS spectrograph, the most prolific exoplanet hunting machine in the world. Located 600 km north of Santiago, at 2400 m altitude in the outskirts of the Chilean Atacama Desert, La Silla was first ESO site in Chile and the largest observatoryof its time. Links Image of Nova Centauri 2013 (non-annotated)
Short title
  • Brand New Image of Nova Centauri 2013
Usage terms
  • Creative Commons Attribution 3.0 Unported license.
Date and time of data generation11:00, 9 December 2013
Software usedAdobe Photoshop CS6 (Macintosh)
Unique ID of original documentxmp.did:07C037C9AF60E311A837B143718B796D
KeywordsNova Centauri 2013
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