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Comet Atlas C/2019-Y4 on March 25th

astrophotography
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#1 thebutcher

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Posted 26 March 2020 - 10:17 PM

I took some more imaging of Comet Atlas.

 

I took it with my R8" at F5.6 again with Astro Physics Telecompressor ASTccd67  @ (.69x). I am short 7mm to make it .67x. I used SGPro then DSS in comet mode. From there I took two stacks from comet mode. Option 1 and Option 2. Option 1 makes the stars stationary and leaves a light blob where the comit traveled. And Option 2 Isolates the comet and makes the Stars trail. "And trail they do" and a pain in a but to clean! But I was able to clean up the star trails in PScc and leave the comet in tact with a dark neutral backround.I also used Gradient Exterminator Plugin for PScc,  I used "Dust & Scratches" to remove as much of the trails near the comet.  

 

I then Merged the two layers together and put them in Screen Mode and came up with the final Image. I then tweaked that a little bit. I plan on taking at least 1 set of images of the comet when I get a chance to go out and gona do something cool at the end and hopefully this comet will put on a show later with its tail. When you go to the larger Zoomed in Image you can see the core and the tail emerging. Well at least I think? smile.gif

 

Thx for looking

 

Astro-Tech RC 8" with APTccd67 (.69x) F5.6
ZWO 1600mm Pro
Astronomik Deep SKy RGB
ZWO EFW 8 pos
Skywatcher EQ6-R Pro
Orion Mini Guider 50mm with Regular ZWO 290mm

R 50 x 60sec 200 Gain
G 50 x 40 sec 150 Gain
B 50 x 40 sec 150 Gain
Flats & Darks only 75 each

 

Comet-Atlas-Y4-March-25th-Astronebula-SM

 

 


  • Carol L, zjc26138, RNSpeed and 17 others like this

#2 DSOs4Me

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Posted 26 March 2020 - 11:23 PM

Very Cool!


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#3 Sleep Deprived

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Posted 27 March 2020 - 12:12 AM

Thanks for sharing.  You went the extra mile by separating stars from comet, and re-combining to eliminate trails - it paid off.  It's a great shot!!


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#4 thebutcher

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Posted 27 March 2020 - 10:38 AM

Thanks for sharing.  You went the extra mile by separating stars from comet, and re-combining to eliminate trails - it paid off.  It's a great shot!!

Thanks guys and if anyone is interested on the options in DSS and the separation I posted some images below. 

 

(In DSS comet mode) Comet with option 2 no color adjustment and not much stretching

combined-no-color-adjustment-SM.jpg

 

(In DSS comet mode) with some color adjustments and balancing with Option 2

combined3-SM.jpg

 

 

Comet with (In DSS comet mode) Stretched and color adjusted & balancing

both-options-with-color-corection.jpg

 

Comet (DSS comet mode) with Option 1checked "Star freeze"It just concentrates on the Star backround and the comet turns out to be a blurred image that is pretty faint compared to the above

Star-freeze-option1-unstretched-combined

 

Here is Option 1 (in DSS comet mode) with some stretching. This gives you the backround stars and you can see the comet blurred. Epecialy when zoomed.

Option-1-stretched-a-bit-scaled.jpg


Edited by thebutcher, 27 March 2020 - 10:40 AM.

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