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File:NGC 5264 - Potw1634a.tif

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描述

NGC 5264 - An irregular island

This image, courtesy of the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys (ACS), captures the glow of distant stars within NGC 5264, a dwarf galaxy located just over 15 million light-years away in the constellation of Hydra (The Sea Serpent).

Dwarf galaxies like NGC 5264 typically possess around a billion stars — just one per cent of the number of stars found within the Milky Way. They are usually found orbiting other, larger, galaxies such as our own, and are thought to form from the material left over from the messy formation of their larger cosmic relatives.

NGC 5264 clearly possesses an irregular shape — unlike the more common spiral or elliptical galaxies — with knots of blue star formation. Astronomers believe that this is due to the gravitational interactions between NGC 5264 and other galaxies nearby. These past flirtations sparked the formation of new generations of stars, which now glow in bright shades of blue.

Credit: ESA/Hubble and NASA 

Coordinates
Position (RA):	13 41 37.40
Position (Dec):	-29° 54' 46.82"
Field of view:	3.22 x 3.31 arcminutes
Orientation:	North is 80.1° left of vertical

Colours & filters Band	Wavelength	Telescope
Optical V	606 nm	Hubble Space Telescope ACS
Infrared I	814 nm	Hubble Space Telescope ACS
Optical V	606 nm	Hubble Space Telescope ACS
Infrared I 814 nm Hubble Space Telescope ACS
日期 22 August 2016, 06:00 (Release)
來源 http://spacetelescope.org/images/potw1634a/ http://spacetelescope.org/static/archives/images/original/potw1634a.tif
作者 Credit: ESA/Hubble and NASA
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目前2016年8月24日 (三) 14:09於 2016年8月24日 (三) 14:09 版本的縮圖3,855 × 3,973（38.66 MB）Fabian RRRR{{Information |Description=NGC 5264 - An irregular island This image, courtesy of the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys (ACS), captures the glow of distant stars within NGC 5264, a dwarf galaxy located just over 15 milli...

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