Our Giant Universe

This detailed image features Abell 3827, a galaxy cluster that offers a wealth of exciting possibilities for study. It was observed by Hubble in order to study dark matter, which is one of the greatest puzzles cosmologists face today. The science team used Hubble’s Advanced Camera for Surveys (ACS) and Wide Field Camera 3 (WFC3) to complete their observations. The two cameras have different specifications and can observe different parts of the electromagnetic spectrum, so using them both allowed the astronomers to collect more complete information. Abell 3827 has also been observed previously by Hubble, because of the interesting gravitational lens at its core. 

Looking at this cluster of hundreds of galaxies, it is amazing to recall that until less than 100 years ago, many astronomers believed that the Milky Way was the only galaxy in the Universe. The possibility of other galaxies had been debated previously, but the matter was not truly settled until Edwin Hubble confirmed that the Great Andromeda Nebula was in fact far too distant to be part of the Milky Way. The Great Andromeda Nebula became the Andromeda Galaxy, and astronomers recognised that our Universe was much, much bigger than humanity had imagined. We can only imagine how Edwin Hubble — after whom the Hubble Space Telescope was named — would have felt if he’d seen this spectacular image of Abell 3827.

Credit:

ESA/Hubble & NASA, R. Massey

About the Image

Id:potw2118a
Type:Observation
Release date:3 May 2021, 06:00
Size:2830 x 2448 px

About the Object

Name:Abell 3827
Type:Early Universe : Galaxy : Grouping : Cluster
Early Universe : Cosmology : Phenomenon : Dark Matter
Constellation:Indus
Category:Galaxies

Image Formats

Large JPEG
1.9 MB
Screensize JPEG
222.5 KB

Zoomable


Wallpapers

1024x768
207.0 KB
1280x1024
345.6 KB
1600x1200
521.2 KB
1920x1200
645.4 KB
2048x1536
893.2 KB

Coordinates

Position (RA):22 1 54.31
Position (Dec):-59° 56' 55.97"
Field of view:2.36 x 2.04 arcminutes
Orientation:North is 55.0° right of vertical


Colours & filters

BandWavelengthTelescope
Optical
U
336 nm Hubble Space Telescope
WFC3
Optical
V
606 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS
Infrared
H
1.6 μm Hubble Space Telescope
WFC3

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