Panorama of Spiral Galaxy, M31

Noirlab_noao-m31lgs_ubviha_1024

noirlab_noao-m31lgs_ubvIha June 30th, 2020

Credit: Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)

This image was created with data from the Local Group Survey, completed with the Mosaic camera on the Mayall 4-meter telescope at Kitt Peak National Observatory. M31, M33 and our Milky Way are the three largest members of the Local Group of galaxies. M31 is a spiral galaxy very similar in size and mass to our own. Ten 'pointings' of the camera along the galaxy in five filters were used to make the image. You could line seven full moons across the image. The image was generated with observations with the U (violet), B (blue), V (cyan), I (orange) and H-alpha (red) filters. The five filters show the star colors and HII star forming regions in vivid detail. About 600 million pixels in size, it is the largest and most detailed image of M31 ever completed that covers the entire galaxy. This image is rotated CW 127 degrees from North is up, East to the left.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-m31lgs_ubvIha/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
M31
Noirlab_noao-m31lgs_ubviha_128
 

Position Details

Position (ICRS)
RA = 0h 42m 49.1s
DEC = 41° 12’ 36.8”
Orientation
North is 125.8° CW
Field of View
3.6 x 0.9 degrees
Constellation
Andromeda

Color Mapping

  Telescope Spectral Band Wavelength
Red Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (Ha) 656.0 nm
Orange Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (I) 805.0 nm
Cyan Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (V) 537.0 nm
Blue Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (B) 436.0 nm
Purple Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (U) 357.0 nm
Spectrum_base
Red
Orange
Cyan
Blue
Purple
Noirlab_noao-m31lgs_ubviha_1280
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ID
noao-m31lgs_ubvIha
Subject Category
Subject Name
M31
Credits
Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)
Release Date
2020-06-30T21:33:48
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-m31lgs_ubvIha/
Type
Observation
Image Quality
Distance Notes
Facility
Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope, Nicholas U. Mayall 4-meter Telescope
Instrument
Mosaic 1, Mosaic 1, Mosaic 1, Mosaic 1, Mosaic 1
Color Assignment
Red, Orange, Cyan, Blue, Purple
Band
Optical, Optical, Optical, Optical, Optical
Bandpass
Ha, I, V, B, U
Central Wavelength
656, 805, 537, 436, 357
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
10.7044882357, 41.2102165872
Reference Dimension
48327.0, 12185.0
Reference Pixel
24163.5, 6092.5
Scale
-7.50497028846e-05, 7.50497028846e-05
Rotation
-125.82000000000001
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
12.078730317420644838790302424394 12.076313181367690782953419226957 12.077521749394167810871860825676
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
noao-m31lgs_ubvIha
Metadata Date
2014-06-11T12:53:40-08:00
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.