Messier 72, a celestial city from above

Esahubble_potw1001a_1024

esahubble_potw1001a April 22nd, 2010

Credit: ESA/Hubble & NASA

As the first in the new weekly series of spectacular images from the NASA/ESA Hubble Space Telescope, the Hubble Picture of the Week, ESA/Hubble presents a stunning image of an unfamiliar star cluster. This rich collection of scattered stars, known as Messier 72, looks like a city seen from an airplane window at night, as small glints of light from suburban homes dot the outskirts of the bright city centre. Messier 72 is actually a globular cluster, an ancient spherical collection of old stars packed much closer together at its centre, like buildings in the heart of a city compared to less urban areas. As well as huge numbers of stars in the cluster itself the picture also captures the images of many much more distant galaxies seen between and around the cluster stars. French astronomer Pierre Mchain discovered this rich cluster in August of 1780, but we take Messier 72s most common name from Mchains colleague Charles Messier, who recorded it as the 72nd entry in his famous catalogue of comet-like objects just two months later. This globular cluster lies in the constellation of Aquarius (the Water Bearer) about 50 000 light-years from Earth. This striking image was taken with the Wide Field Channel of the Advanced Camera for Surveys on the NASA/ESA Hubble Space Telescope. The image was created from pictures taken through yellow and near-infrared filters (F606W and F814W). The exposure times were about ten minutes per filter and the field of view is about 3.4 arcminutes across.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1001a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
Messier 72
Subject - Milky Way
Star > Grouping > Cluster > Globular
Esahubble_potw1001a_128
 

Position Details Position Details

Position (ICRS)
RA = 20h 53m 27.8s
DEC = -12° 32’ 11.3”
Orientation
North is 107.1° CCW
Field of View
3.4 x 3.4 arcminutes
Constellation
Aquarius

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (ACS) Infrared (I) -
Green Hubble (ACS) Optical (Pseudogreen (V+I)) -
Blue Hubble (ACS) Optical (V) -
Esahubble_potw1001a_1280
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ID
potw1001a
Subject Category
B.3.6.4.2  
Subject Name
Messier 72
Credits
ESA/Hubble & NASA
Release Date
2010-04-22T20:10:05
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1001a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS
Color Assignment
Red, Green, Blue
Band
Infrared, Optical, Optical
Bandpass
I, Pseudogreen (V+I), V
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
313.365745587, -12.5364670673
Reference Dimension
4114.0, 4114.0
Reference Pixel
2057.0, 2057.0
Scale
-1.38765375885e-05, 1.38765375885e-05
Rotation
107.12000000000008
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1001a
Metadata Date
2010-04-16T11:41:18+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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