Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  B85  ·  M 20  ·  NGC 6514  ·  Sh2-30  ·  Trifid Nebula
Getting plate-solving status, please wait...
The Trifid Nebula, 



    
        

            Matt Harbison
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The Trifid Nebula

Getting plate-solving status, please wait...
The Trifid Nebula, 



    
        

            Matt Harbison
Powered byPixInsight

The Trifid Nebula

Imaging Telescopes Or Lenses
Celestron EdgeHD 11"
Mounts
Astro-Physics 1100 GTO
Accessories
QHY Med OAG QHYOAG-M · Moonlite Crayford Focuser with motor · Celestron Edge f7 Focal Reducer Edge .7 Reducer
Software
Adobe Photoshop · PixInsight · Sequence Generator Pro · Adobe Lightroom LR

Acquisition details

RA center: 18h02m42s.367

DEC center: -22°5552.40

Pixel scale: 0.490 arcsec/pixel

Orientation: -25.231 degrees

Field radius: 0.399 degrees

More info:Open 

Resolution: 4900x3253

Locations: Chattanooga, Chattanooga, Tn, United States

Data source: Traveller

Description

Captured on Friday, July 10th at Cloudland Canyon State Park with the Barnard Astronomical Society. Half the image was acquired before the 50% Moon come up, the other have acquired with the moon rising before calibration frames and a break for comet Neowise. A short video of the acquisition can be seen here: https://youtu.be/GxkL32vo7lY

About: From wiki -The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius. It was discovered by Charles Messier on June 5, 1764. Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers.

Equipment:

Telescope- Celestron Edge HD 11” w/.7 reducer

Camera- QHY 168C

Filter- IDAS LP2

Guiding camera- QHY 174mm

Mount- Astro-Physics 1100gto

Acquisition:

45 x 3minute light exposures

12 dark frames

12 bias frames

12 sky flats

Calibration:

Pixinsight processing

-Weighted Batch Pre Processing with The Cosmetic Correction applied

-Photometric Color Calibration

-Histogram Transformation

-SCNR in green Channel

-Exported to Photoshop for levels adjustment and export

Comments

Sky plot

Sky plot

Histogram

The Trifid Nebula, 



    
        

            Matt Harbison