Lonely Hearts Club

Galaxies may seem lonely, floating alone in the vast, inky blackness of the sparsely populated cosmos — but looks can be deceiving. The subject of this Picture of the Week, NGC 1706, is a good example of this. NGC 1706 is a spiral galaxy, about 230 million light-years away, in the constellation of Dorado (The Swordfish).

NGC 1706 is known to belong to something known as a galaxy group, which is just as the name suggests — a group of up to 50 galaxies which are gravitationally bound and hence relatively close to each other. Around half of the galaxies we know of in the Universe belong to some kind of group, making them incredibly common cosmic structures. Our home galaxy, the Milky Way, belongs to the Local Group, which also contains the Andromeda Galaxy, the Large and Small Magellanic Clouds, and the Triangulum Galaxy.

Groups are the smallest of galactic gatherings; others are clusters, which can comprise hundreds of thousands of galaxies bound loosely together by gravity, and subsequent superclusters, which bring together numerous clusters into a single entity.

Credit:

ESA/Hubble & NASA, A. Bellini et al.

About the Image

Id:potw1943a
Type:Observation
Release date:28 October 2019, 06:00
Size:3814 x 1909 px

About the Object

Name:NGC 1706
Type:Local Universe : Galaxy : Type : Spiral
Distance:230 million light years
Constellation:Dorado
Category:Galaxies

Image Formats

Large JPEG
1.2 MB
Screensize JPEG
89.3 KB

Zoomable


Wallpapers

1024x768
171.2 KB
1280x1024
287.2 KB
1600x1200
410.1 KB
1920x1200
457.0 KB
2048x1536
669.3 KB

Coordinates

Position (RA):4 52 31.14
Position (Dec):-62° 59' 9.28"
Field of view:3.18 x 1.59 arcminutes
Orientation:North is 64.7° left of vertical

Colours & filters

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

Also see our


Accelerated by CDN77