Stretched out image of distant galaxy

This is an image from the NASA/ESA Hubble Space Telescope of the farthest galaxy yet seen in an image that has been stretched and amplified by a phenomenon called gravitational lensing. The embryonic galaxy, named SPT0615-JD, existed when the Universe was just 500 million years old. Though a few other primitive galaxies have been seen at this early epoch, they have essentially all looked like red dots, given their small size and tremendous distances.

However, in this case, the gravitational field of a massive foreground galaxy cluster, called SPT-CL J0615-5746, not only amplified the light from the background galaxy but also smeared the image of it into an arc (about 2 arcseconds long). Image analysis shows that the galaxy weighs in at no more than 3 billion solar masses (roughly 1/100th the mass of our Milky Way galaxy). It is less than 2500 light-years across, half the size of the Small Magellanic Cloud, a satellite galaxy of the Milky Way. The object is considered prototypical of young galaxies that emerged during the epoch shortly after the Big Bang.

Links:

Credit:

NASA , ESA, and B. Salmon (STScI)

About the Image

NASA press release
NASA caption
Id:opo1802a
Type:Collage
Release date:12 January 2018, 13:45
Size:3876 x 2907 px

About the Object

Name:SPT0615-JD, SPT-CL J0615-5746
Type:Early Universe : Galaxy : Type : Gravitationally Lensed
Early Universe : Galaxy : Grouping : Cluster
Early Universe : Cosmology : Phenomenon : Lensing
Distance:8 billion light years
Category:Cosmology
Galaxies

Image Formats

Large JPEG
5.9 MB
Screensize JPEG
259.5 KB

Zoomable


Wallpapers

1024x768
335.8 KB
1280x1024
640.3 KB
1600x1200
1004.2 KB
1920x1200
1.3 MB
2048x1536
1.7 MB

Colours & filters

BandWavelengthTelescope
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
Infrared
J/H
1.4 μm Hubble Space Telescope
WFC3
Infrared
J
1.25 μm Hubble Space Telescope
WFC3
Infrared
Z
1.05 μm Hubble Space Telescope
WFC3

Also see our


Accelerated by CDN77