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The Crescent Nebula - With a Near Full Moon

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#1 Acer

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Posted 16 June 2019 - 03:28 PM

Shot this last night under Bortle 6-7 skies and a near full moon. The LRGB images were extremely faint, with very little data of the nebula present. The Hydrogen-Alpha data was much more detailed.

 

I need to shoot some OIII and SII data the next chance I get.

 

MN190 Mak Newt
ASI183MM Pro
EQ6R-Pro
SW 72ED Guide Scope
ASI120MC-S Guide Camera

 

H-Alpha: 10, 500 second exposures.
Lum: 30, 60 second exposures
Red: 30, 60 second exposures
Green: 30, 60 second exposures
Blue: 30, 60 second exposures

Crescent-Nebula-Small.jpg


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#2 JP50515

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Posted 16 June 2019 - 04:11 PM

yeah man...you keep nudging me towards that mak-newt... lol

Awesome image. Is this cropped?



#3 Acer

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Posted 16 June 2019 - 04:24 PM

yeah man...you keep nudging me towards that mak-newt... lol

Awesome image. Is this cropped?

Yeah, it is an excellent scope!  I am extremely happy with it.

 

This is roughly a 10% crop, just enough to clean up the edges (I dither pretty aggressively).


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#4 vidrazor

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Posted 17 June 2019 - 11:32 AM

How do you even know where to find something like that under Bortle 6-7 skies, never mind shoot it?  smile.gif


Edited by vidrazor, 17 June 2019 - 11:34 AM.


#5 Acer

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Posted 17 June 2019 - 11:45 AM

How do you even know where to find something like that under Bortle 6-7 skies, never mind shoot it?  smile.gif

Plate-solving is WONDERFUL!

 

I didn't know for sure until I did a 500 second Ha shot (I shot Ha first).  It popped up on the screen exactly centered, which is a feat in itself with a .74° field of view.

 

The LRGB data barely showed the nebulosity, only the red filter showed a very faint outline of the whole thing.  I only shot 60 second subs with the LRGB filters since I didn't want to blow out the stars.

 

I am using APT with it's built in blind plate solver.



#6 jgraham

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Posted 17 June 2019 - 11:55 AM

Wow, the detail is wonderful! Nicely done!



#7 PhotonHunter1

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Posted 18 June 2019 - 10:31 PM

The Ha image is a beauty on its own! Looking forward to seeing the addition of SII and O3.



#8 JP50515

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Posted 24 June 2019 - 11:30 AM

Yeah, it is an excellent scope!  I am extremely happy with it.

 

This is roughly a 10% crop, just enough to clean up the edges (I dither pretty aggressively).

Man that's a killer FOV with that ASI 183 on there. 

I'm pinching my pennies for one of these Mak-Newts now. 




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