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M16 – The Eagle Nebula in Serpens Cauda – LX65, 600Da

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#1 jgraham

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Posted 25 October 2021 - 09:22 PM

Telescope: LXD75 SC8 @ f/6.3, LX65 mount, altaz mode
Camera: Baader modified Canon 600D, interval timer
Filter: GSO IR Blocking Filter
Guide scope: None
Exposure: 38x10sec, ISO 1600, saved as RAW
Darks: Internal (Long Exposure Noise Reduction On)
Flats: 32x1/25sec, Tee shirt flats taken at dusk
Average Light Pollution: Red zone, Bortle 8, poor transparency, moonlight
Lensed Sky Quality Meter: 18.3
Stacking: Mean with a 1-sigma clip.
White Balance: Nebulosity Automatic
Software: Deep Sky Stacker, Nebulosity, Photoshop

 

M16 (9-24-2021)-2j.jpg

 

M16 is actually the cluster in the upper right section of the nebula. The nebula is very subtle and can be difficult to see visually, though it shows well under dark skies. The name, the Eagle Nebula, comes from the dark lanes in the middle which resembles an eagle grasping a fish. These dust lanes are also the famous ‘pillars of creation’ imaged by the Hubble Space Telescope. The nebula is a beautiful expanse of interstellar hydrogen set aglow from young stars embedded within it. M16 lies in the Sagittarius-Carina arm of the Milky Way, the next arm inwards from ours towards the core of our galaxy, so you are looking across the gap between adjacent spiral arms.

 

This is one of a series of images that I have been taking to explore using relatively simple equipment and techniques. This is a nice example of going after a relatively challenging target under challenging conditions.


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#2 ChiTownXring

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Posted 26 October 2021 - 12:58 PM

Having fun with what you have is the name of the game.. Great image but I will ask.... If you are setup and focused and your target is centered why stop at 38, 10 sec images?


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#3 jgraham

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Posted 26 October 2021 - 06:39 PM

Good question! The short answer is 30+ images with all of the natural dithering works pretty good. The longer answer is field rotation starts to become excessive. The objective of these images was to explore the types of things that a beginner may encounter while taking their first steps. This has been a lot of fun!


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