The Lagoon Nebula, M8 (NGC 6523)

Noirlab_noao-02173_1024

noirlab_noao-02173 June 30th, 2020

Credit: NOIRLab/NSF/AURA

The Lagoon Nebula, Messier object 8 (M8) or NGC 6523, in the constellation of Sagittarius, as seen by the Kitt Peak 4-meter Mayall telescope in 1973. North is at the top. The lagoon nebula glows with the red light of hydrogen (H alpha) excited by the radiation of very hot stars buried within its center. Deep within the cloud, dark filaments of obscuring matter emit strong infrared radiation. Several peculiar variable stars in the nebula occasionally flare up, increasing in brightness to some 25 times their normal luminosity. The nebula is about 6500 light-years away and about 60 light-years across.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-02173/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Lagoon Nebula M8 NGC 6523
Noirlab_noao-02173_128
 

Position Details

Position (ICRS)
RA = 18h 4m 12.4s
DEC = -24° 20’ 46.9”
Orientation
North is 0.1° CW
Field of View
54.5 x 43.6 arcminutes
Constellation
Sagittarius

Color Mapping

  Telescope Spectral Band Wavelength
Grayscale Nicholas U. Mayall 4-meter Telescope (None) Optical (H-alpha) 656.0 nm
Spectrum_base
Grayscale
Noirlab_noao-02173_1280
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ID
noao-02173
Subject Category
Subject Name
Lagoon Nebula, M8, NGC 6523
Credits
NOIRLab/NSF/AURA
Release Date
2020-06-30T21:34:06
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-02173/
Type
Observation
Image Quality
Distance Notes
Facility
Nicholas U. Mayall 4-meter Telescope
Instrument
None
Color Assignment
Grayscale
Band
Optical
Bandpass
H-alpha
Central Wavelength
656
Start Time
Integration Time
Dataset ID
None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
271.05164659, -24.3463654883
Reference Dimension
3000.0, 2400.0
Reference Pixel
1500.0, 1200.0
Scale
-0.00030272158034, 0.00030272158034
Rotation
-0.13398740000000023
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-02173
Metadata Date
2021-04-22T09:25:37.862872
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.