Thors Helmet, NGC 2359, IC 468

Noirlab_noao-ic468_1024

noirlab_noao-ic468 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. Informally known as Thors Helmet, NGC 2359 (IC 468) is a giant bubble that is being blown off of the Wolf-Rayet star HD 56925. Wolf-Rayet stars are extremely massive stars that are very hot and luminous. Their intense energy blows off the outer layers, causing the bubble shape seen here. The complex shape of the bubble is due to its interaction with dust and gas in which the star is embedded. The image was generated with observations in Hydrogen alpha (orange), Oxygen [OIII] (blue) and Sulfur [SII] (violet) filters. In this image, North is left, East is down.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-ic468/

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 468 NGC 2359 Thors Helmet
Noirlab_noao-ic468_128
 

Position Details

Position (ICRS)
RA = 7h 19m 9.9s
DEC = -13° 15’ 23.0”
Orientation
North is 89.8° CCW
Field of View
16.5 x 19.1 arcminutes
Constellation
Canis Major

Color Mapping

  Telescope Spectral Band Wavelength
Purple WIYN 0.9-meter Telescope (Mosaic 1) Optical (Sll) 672.0 nm
Blue WIYN 0.9-meter Telescope (Mosaic 1) Optical (Olll) 499.0 nm
Orange WIYN 0.9-meter Telescope (Mosaic 1) Optical (Ha) 656.0 nm
Spectrum_base
Purple
Blue
Orange
Noirlab_noao-ic468_1280
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ID
noao-ic468
Subject Category
Subject Name
IC 468, NGC 2359, Thors Helmet
Credits
T.A. Rector (University of Alaska Anchorage) and NOIRLab/NSF/AURA
Release Date
2020-06-30T21:34:09
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-ic468/
Type
Observation
Image Quality
Distance Notes
Facility
WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope, WIYN 0.9-meter Telescope
Instrument
Mosaic 1, Mosaic 1, Mosaic 1
Color Assignment
Purple, Blue, Orange
Band
Optical, Optical, Optical
Bandpass
Sll, Olll, Ha
Central Wavelength
672, 499, 656
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
109.7913188, -13.25639188
Reference Dimension
2350.0, 2718.0
Reference Pixel
1429.885666, 300.2876587
Scale
-0.000118, 0.000117
Rotation
89.77401118
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-ic468
Metadata Date
2020-10-01T12:50:43.496606
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.