Spiral, elliptical, irregular

This image shows an irregular galaxy named IC 10, a member of the Local Group — a collectiongrouping of over 50 galaxies inwithin our cosmic neighbourhood that includes the Milky Way.

IC 10 is a remarkable object. It is the closest-known starburst galaxy to us, meaning that it is undergoing a furious bout of star formation fueled by ample supplies of cool hydrogen gas. This gas condenses into vast molecular clouds, which then form into dense knots where pressures and temperatures reach a point sufficient to ignite nuclear fusion, thus giving rise to new generations of stars.  

As an irregular galaxy, IC 10 lacks the majestic shape of spiral galaxies such as the Milky Way, or the rounded, ethereal appearance of elliptical galaxies. It is a faint object, despite its relative proximity to us — justof 2.2 million light-years. In fact, IC 10 only became known to humankind in 1887, when American astronomer Lewis Swift spotted it during an observing campaign. The small galaxy remains difficult to study even today, because it is located along a line-of-sight which is chock-full of cosmic dust and stars.

A version of this image was entered into the Hubble's Hidden Treasures image processing competition by contestant Nikolaus Sulzenauer, and went on to win tenth prize.

Credit:

NASA, ESA and F. Bauer

About the Image

Id:potw1924a
Type:Observation
Release date:17 June 2019, 06:00
Size:6130 x 3448 px

About the Object

Name:IC 10
Type:Local Universe : Galaxy : Type : Irregular
Distance:2 million light years
Constellation:Cassiopeia
Category:Galaxies

Image Formats

Large JPEG
16.1 MB
Screensize JPEG
407.9 KB

Zoomable


Wallpapers

1024x768
716.5 KB
1280x1024
1.2 MB
1600x1200
1.8 MB
1920x1200
2.2 MB
2048x1536
3.0 MB

Coordinates

Position (RA):0 20 19.53
Position (Dec):59° 18' 27.50"
Field of view:5.10 x 2.87 arcminutes
Orientation:North is 59.7° right of vertical

Colours & filters

BandWavelengthTelescope
Optical
B
435 nm Hubble Space Telescope
ACS
Optical
V
606 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS

Also see our


Accelerated by CDN77