The globular star cluster Messier 4

eso_eso1235a September 5th, 2012

Credit: ESO Acknowledgement: ESO Imaging Survey

This image from the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory shows the spectacular globular star cluster Messier 4. This great ball of ancient stars is one of the closest of such stellar systems to the Earth and appears in the constellation of Scorpius (The Scorpion) close to the bright red star Antares.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso1235a/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details

Image Type: Observation
Object Name: M 4 • Messier 4 • NGC 6121
Subject - Milky Way: Star > Grouping > Cluster > Globular

Position Details

Position (ICRS): RA = 16h 23m 35.0s; DEC = -26° 30’ 52.4”
Orientation: North is up
Field of View: 31.7 x 30.6 arcminutes
Constellation: Scorpius

Color Mapping

Telescope	Spectral Band	Wavelength
MPG-2.2m (WFI)	Infrared (I)	784.0 nm
MPG-2.2m (WFI)	Optical (V)	540.0 nm
MPG-2.2m (WFI)	Optical (B)	456.0 nm

ID: eso1235a
Subject Category: B.3.6.4.2
Subject Name: M 4, Messier 4, NGC 6121
Credits: ESO Acknowledgement: ESO Imaging Survey

Release Date: 2012-09-05T12:00:00
Lightyears
Redshift
Reference Url: https://www.eso.org/public/images/eso1235a/

Type: Observation
Image Quality
Distance Notes

Facility: MPG/ESO 2.2-metre telescope, MPG/ESO 2.2-metre telescope, MPG/ESO 2.2-metre telescope
Instrument: WFI, WFI, WFI
Color Assignment: Red, Green, Blue

Band: Infrared, Optical, Optical
Bandpass: I, V, B
Central Wavelength: 784, 540, 456

Start Time
Integration Time
Dataset ID
Notes

Coordinate Frame: ICRS
Equinox: J2000
Reference Value: 245.896038299, -26.5145469674
Reference Dimension: 7982.0, 7712.0

Reference Pixel: 3991.0, 3856.0
Scale: -6.61525585133e-05, 6.61525585133e-05
Rotation: -0.0205487178074
Coordinate System Projection:: TAN

Quality: Full
FITS Header
Notes

Creator (Curator): European Southern Observatory
URL: http://www.eso.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: European Southern Observatory
Publisher ID: eso
Resource ID: eso1235a

Resource URL: https://www.eso.org/public/archives/images/original/eso1235a.tif
Related Resources

Metadata Date: 2012-08-29T13:40:45+02:00
Metadata Version: 1.1

Detailed color mapping information coming soon...

There is no distance meta data in this image.