NGC 604 — a gigantic gas cloud in the Triangulum Galaxy

This image shows NGC 604, located within the Triangulum Galaxy. Some 1500 light-years across, this is one of the largest, brightest concentrations of ionised hydrogen (H II) in our Local Group of galaxies, and it is a major centre of star formation.

The gas in NGC 604, around nine-tenths of which is hydrogen, is gradually collapsing under the force of gravity to create new stars. Once these stars have formed, the energetic ultraviolet radiation they emit excites the remaining gas in the cloud.

This image is only a tiny part of the large wide-field image of the Triangulum Galaxy created by the NASA/ESA Hubble Space Telescope.

Hubble has observed this object before, with different cameras: In 2003, using the WFPC2 and in 2010, using the ACS. The different colours in the images have their origin in the different filters being used.

Credit:

NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington)

About the Image

Id:heic1901b
Type:Observation
Release date:7 January 2019, 18:00
Related releases:heic1901
Size:2188 x 2035 px

About the Object

Name:M 33, Messier 33, NGC 604
Type:Local Universe : Galaxy : Type : Spiral
Distance:3 million light years
Constellation:Triangulum
Category:Galaxies

Image Formats

Large JPEG
1.8 MB
Screensize JPEG
525.0 KB

Zoomable


Wallpapers

1024x768
543.9 KB
1280x1024
809.7 KB
1600x1200
1.0 MB
1920x1200
1.1 MB
2048x1536
1.4 MB

Coordinates

Position (RA):1 34 32.90
Position (Dec):30° 47' 5.98"
Field of view:1.29 x 1.20 arcminutes
Orientation:North is 90.1° right of vertical

Colours & filters

BandWavelengthTelescope
Optical
g
475 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS

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