M20: The Trifid Nebula

noirlab_noao-m20castano June 7th, 2014

Credit: KPNO/NOIRLab/NSF/AURA/Jim and Janet Castano/Adam Block

The Trifid Nebula or M20 is one of the most observed summer nebulae. It gets its distinct look from dust lanes that seem to divide the nebula into three parts. Located in the constellation Sagittarius, its distance is estimated at approximately 5,000 light years. This image was taken as part of Advanced Observing Program (AOP) program at Kitt Peak Visitor Center during 2014.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-m20castano/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details

Image Type: Observation
Object Name: M20 • Trifid Nebula

Position Details

Position (ICRS): RA = 18h 2m 26.9s; DEC = -22° 59’ 11.3”
Orientation: North is 125.8° CW
Field of View: 12.2 x 8.3 arcminutes
Constellation: Sagittarius

Color Mapping

Telescope	Spectral Band	Wavelength
KPNO-VC-0.5m (Other CCD)	Optical (R)	625.0 nm
KPNO-VC-0.5m (Other CCD)	Optical (G)	475.0 nm
KPNO-VC-0.5m (Other CCD)	Optical (B)	438.0 nm
KPNO-VC-0.5m (Other CCD)	Optical (Broad Band)	555.0 nm

ID: noao-m20castano
Subject Category
Subject Name: M20, Trifid Nebula
Credits: KPNO/NOIRLab/NSF/AURA/Jim and Janet Castano/Adam Block

Release Date: 2014-06-07T08:42:35
Lightyears
Redshift
Reference Url: https://noirlab.edu/public/images/noao-m20castano/

Type: Observation
Image Quality
Distance Notes

Facility: Visitor Center 0.5-meter Telescope, Visitor Center 0.5-meter Telescope, Visitor Center 0.5-meter Telescope, Visitor Center 0.5-meter Telescope
Instrument: Other CCD, Other CCD, Other CCD, Other CCD
Color Assignment: Red, Green, Blue, Luminosity

Band: Optical, Optical, Optical, Optical
Bandpass: R, G, B, Broad Band
Central Wavelength: 625, 475, 438, 555

Start Time
Integration Time
Dataset ID: None, None, None, None
Notes

Coordinate Frame: ICRS
Equinox: J2000
Reference Value: 270.612085209, -22.9864798457
Reference Dimension: 1731.0, 1169.0

Reference Pixel: 865.5, 584.5
Scale: -0.000117625230768, 0.000117625230768
Rotation: -125.84000000000002
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-m20castano

Resource URL: http://noirlab.edu/public/media/archives/images/original/noao-m20castano.tif
Related Resources

Metadata Date: 2021-11-22T08:24:46-05:00
Metadata Version: 1.1

Detailed color mapping information coming soon...

There is no distance meta data in this image.