Galaxies M81 & M82

Noirlab_noao-m81m82_1024

noirlab_noao-m81m82 June 30th, 2020

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

This image was obtained with the wide-field view of the Mosaic camera on the KPNO 0.9m-meter telescope at Kitt Peak National Observatory. M81 (the spiral galaxy on the left) and M82 (the galaxy on the right) are two relatively nearby galaxies that are gravitationally interacting with each other. This interaction is triggering the formation of new stars in M82 at a massive rate, which can be seen from the filaments of red hydrogen gas in the galaxy. The very faint irregular dwarf galaxy Holmberg IX can barely be seen above M81. The image was generated with observations in B (blue), V (cyan), R (green), I (orange) and Hydrogen-Alpha (red). In this image, North is right, East is up.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-m81m82/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
M81 M82
Noirlab_noao-m81m82_128
 

Position Details

Position (ICRS)
RA = 9h 54m 50.2s
DEC = 69° 13’ 42.5”
Orientation
North is 90.2° CW
Field of View
58.9 x 32.9 arcminutes
Constellation
Ursa Major

Color Mapping

  Telescope Spectral Band Wavelength
Red WIYN 0.9-meter Telescope (Mosaic 1) Optical (Ha) 656.0 nm
Orange WIYN 0.9-meter Telescope (Mosaic 1) Optical (I) 805.0 nm
Green WIYN 0.9-meter Telescope (Mosaic 1) Optical (R) 644.0 nm
Cyan WIYN 0.9-meter Telescope (Mosaic 1) Optical (V) 537.0 nm
Blue WIYN 0.9-meter Telescope (Mosaic 1) Optical (B) 436.0 nm
Spectrum_base
Red
Orange
Green
Cyan
Blue
Noirlab_noao-m81m82_1280
×
ID
noao-m81m82
Subject Category
Subject Name
M81, M82
Credits
T.A. Rector (University of Alaska Anchorage) and NOIRLab/NSF/AURA/
Release Date
2020-06-30T21:33:52
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-m81m82/
Type
Observation
Image Quality
Distance Notes
Facility
WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope
Instrument
Mosaic 1, Mosaic 1, Mosaic 1, Mosaic 1, Mosaic 1
Color Assignment
Red, Orange, Green, Cyan, Blue
Band
Optical, Optical, Optical, Optical, Optical
Bandpass
Ha, I, R, V, B
Central Wavelength
656, 805, 644, 537, 436
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
148.7093692, 69.22847295
Reference Dimension
8315.0, 4642.0
Reference Pixel
3387.535278, 1981.610626
Scale
-0.000118, 0.000118
Rotation
-90.18048792
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
noao-m81m82
Metadata Date
2020-10-01T12:43:16.579391
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.