Wolf–Lundmark–Melotte (WLM) Irregular Galaxy

Noirlab_noao-wlm_1024

noirlab_noao-wlm June 30th, 2020

Credit: NOIRLab/NSF/AURA/CTIO/Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)

This image was obtained with the wide-field view of the Mosaic II camera on the Blanco 4-meter telescope at Cerro Tololo Interamerican Observatory. Wolf–Lundmark–Melotte (WLM) is an irregular galaxy located on the outer edges of the Local Group. WLM is about ten times smaller than our own galaxy, the Milky Way. This image was made using data from the Local Group Survey. The image was generated with observations in U (violet), B (blue), V (cyan), I (orange) and H-alpha (red) filters. In this image, North is up, East is left.

Provider: NOIRLab

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

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
WLM
Noirlab_noao-wlm_128
 

Position Details

Position (ICRS)
RA = 0h 1m 20.8s
DEC = -15° 27’ 18.3”
Orientation
North is 180.0° CCW
Field of View
28.5 x 29.0 arcminutes
Constellation
Cetus

Color Mapping

  Telescope Spectral Band Wavelength
Red Blanco-4m (Mosaic II) Optical (Ha) 656.0 nm
Orange Blanco-4m (Mosaic II) Optical (I) 805.0 nm
Cyan Blanco-4m (Mosaic II) Optical (V) 537.0 nm
Blue Blanco-4m (Mosaic II) Optical (B) 436.0 nm
Purple Blanco-4m (Mosaic II) Optical (U) 357.0 nm
Spectrum_base
Red
Orange
Cyan
Blue
Purple
Noirlab_noao-wlm_1280
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ID
noao-wlm
Subject Category
Subject Name
WLM
Credits
NOIRLab/NSF/AURA/CTIO/Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)
Release Date
2020-06-30T21:34:01
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-wlm/
Type
Observation
Image Quality
Distance Notes
Facility
Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope
Instrument
Mosaic II, Mosaic II, Mosaic II, Mosaic II, Mosaic II
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
0.3366198432, -15.45508161
Reference Dimension
6330.0, 6449.0
Reference Pixel
5191.19873, 3443.367706
Scale
-7.5e-05, 7.5e-05
Rotation
179.9926141
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-wlm
Metadata Date
2021-11-24T09:15:33.763071
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.