Globular cluster 47 Tucanae

This NASA/ESA Hubble Space Telescope image shows a globular cluster known as NGC 104 — or, more commonly, 47 Tucanae, since it is part of the constellation of Tucana (The Toucan) in the southern sky. After Omega Centauri it is the brightest globular cluster in the night sky, hosting tens of thousands of stars.

Scientists using Hubble observed the white dwarfs in the cluster. These dying stars migrate from the crowded centre of the cluster to its outskirts. Whilst astronomers knew about this process they had never seen it in action, until the detailed study of 47 Tucanae.

Credit:

NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration
Acknowledgment: J. Mack (STScI) and G. Piotto (University of Padova, Italy)

About the Image

Id:heic1510a
Type:Observation
Release date:14 May 2015, 19:00
Related releases:heic1510
Size:3359 x 3288 px

About the Object

Type:Milky Way : Star : Grouping : Cluster : Globular
Distance:15000 light years
Constellation:Tucana
Category:Star Clusters

Image Formats

Large JPEG
6.9 MB
Screensize JPEG
925.8 KB

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Wallpapers

1024x768
801.7 KB
1280x1024
1.3 MB
1600x1200
1.8 MB
1920x1200
2.0 MB
2048x1536
2.7 MB

Coordinates

Position (RA):0 24 6.67
Position (Dec):-72° 4' 52.84"
Field of view:2.80 x 2.74 arcminutes
Orientation:North is 14.8° left of vertical

Colours & filters

BandWavelengthTelescope
Ultraviolet
UV
275 nm Hubble Space Telescope
WFC3
Optical
B
475 nm Hubble Space Telescope
ACS
Optical
V
606 nm Hubble Space Telescope
ACS
Optical
I
814 nm Hubble Space Telescope
ACS

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