NGC 7232/3

Noirlab_gemini-ngc7232-final_1024

noirlab_gemini-ngc7232-final August 30th, 2020

Credit: International Gemini Observatory/NOIRLab/NSF/AURA/T. A. Rector (University of Alaska Anchorage)

This image shows an interacting trio of galaxies known as the Lyon Group of Galaxies #455 (LGG 455). It is made up of the galaxies NGC 7232 (upper right), NGC 7233 (lower right), and NGC 7232B (left). The two brightest objects near the center of the image are foreground stars in our Milky Way. Dark lanes of dusty material can be seen in NGC 7232 and NGC 7233, while NGC 7232B shows bright spots of young, blue stars along its weak spiral arms. LGG 455 has not been studied in great detail, but it is thought to host a 'dark galaxy', a rare object that contains the raw ingredients for making stars but which hasn't been able to form any. Even though the dark galaxy in LGG 455 contains enough gas to make more than 400 million Suns, the deep image by Gemini is not able to find any significant population of stars (just to the left of the lower foreground star in this image). Most likely, that huge amount of gas was flung out of NGC 7233 when it had a close encounter with one of its two companions.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/gemini-ngc7232-final/

Curator: NSF's NOIRLab, Tucson, AZ, USA

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 7232 NGC 7233
Noirlab_gemini-ngc7232-final_128
 

Position Details

Position (ICRS)
RA = 22h 15m 58.2s
DEC = -45° 49’ 0.9”
Orientation
North is 65.0° CCW
Field of View
8.8 x 5.1 arcminutes
Constellation
Grus
Noirlab_gemini-ngc7232-final_1280
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ID
gemini-ngc7232-final
Subject Category
Subject Name
NGC 7232, NGC 7233
Credits
International Gemini Observatory/NOIRLab/NSF/AURA/T. A. Rector (University of Alaska Anchorage)
Release Date
2020-08-30T05:51:13
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/gemini-ngc7232-final/
Type
Observation
Image Quality
Distance Notes
Facility
Instrument
Color Assignment
Band
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
333.9923958, -45.81691758
Reference Dimension
3630.0, 2095.0
Reference Pixel
1314.93909911, 519.977956358
Scale
-4.05637835291e-05, 4.03433281838e-05
Rotation
65
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
NSF's NOIRLab
URL
https://noirlab.edu
Name
Email
Telephone
Address
950 North Cherry Ave.
City
Tucson
State/Province
AZ
Postal Code
85719
Country
USA
Rights
Creative Commons Attribution 4.0 International License
Publisher
NSF's NOIRLab
Publisher ID
noirlab
Resource ID
gemini-ngc7232-final
Metadata Date
2020-09-30T12:27:25.742252
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.