Portrait of a Needle Galaxy

Noirlab_iotw2101a_1024

noirlab_iotw2101a January 6th, 2021

Credit: KPNO/NOIRLab/NSF/AURA.  Acknowledgments: PI: M T. Patterson (New Mexico State University)Image processing: Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin

The remarkably thin galaxy IC 2233 is featured in this image from the Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory, a Program of NSFs NOIRLab. IC 2233s needle-thin profile is due to both its structure and its orientation towards Earth. The galaxys orientation known to astronomers as inclination is almost exactly side-on, making this one of the flattest galaxies known. The exposure of this particular image is deep and the entire field littered with galaxies of various types of inclinations. As well as lying flat from our point of view, IC 2233 also lacks the prominent bulge that fattens the profile of spiral galaxies such as Andromeda and the Milky Way. The wafer-thin profile of this celestial needle has been fascinating observers for nearly 150 years IC 2233 was first discovered in 1874 by the Welsh amateur astronomer Isaac Roberts, one of the pioneers of astrophotography.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/iotw2101a/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
IC 2233
Noirlab_iotw2101a_128
 

Position Details

Position (ICRS)
RA = 8h 13m 59.8s
DEC = 45° 44’ 37.2”
Orientation
North is 89.9° CCW
Field of View
11.1 x 6.3 arcminutes
Constellation
Lynx

Color Mapping

  Telescope Spectral Band Wavelength
Red Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (H-alpha) 657.0 nm
Orange Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (R) 651.0 nm
Cyan Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (B) 438.0 nm
Blue Nicholas U. Mayall 4-meter Telescope (Mosaic 1) Optical (U) 355.0 nm
Spectrum_base
Red
Orange
Cyan
Blue
Noirlab_iotw2101a_1280
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ID
iotw2101a
Subject Category
Subject Name
IC 2233
Credits
KPNO/NOIRLab/NSF/AURA.  Acknowledgments: PI: M T. Patterson (New Mexico State University)Image processing: Travis Rector (University of Alaska Anchorage), Mahdi Zamani & Davide de Martin
Release Date
2021-01-06T08:00:00
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/iotw2101a/
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
Instrument
Mosaic 1, Mosaic 1, Mosaic 1, Mosaic 1
Color Assignment
Red, Orange, Cyan, Blue
Band
Optical, Optical, Optical, Optical
Bandpass
H-alpha, R, B, U
Central Wavelength
657, 651, 438, 355
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
123.499320308, 45.7436619386
Reference Dimension
2551.0, 1435.0
Reference Pixel
1275.5, 717.5
Scale
-7.27360177284e-05, 7.27360177284e-05
Rotation
89.940000000000026
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
iotw2101a
Metadata Date
2020-10-14T01:04:01+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.