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Lots of satellites

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#1 t-ara-fan

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Posted 24 July 2021 - 10:58 PM

I was shooting NGC7000 so I could test out my new widefield setup:  EQ6-R Pro, ASI071MC Pro, Astromechanics EF adapter, Canon 200mm f/2.8L prime, Orion MMAG.

 

Stars were OK at f/2.8, not as good as when I put my stop down ring on the lens.

 

I shot 32x 240" exposures. What was interesting was how many satellites were visible in the Pixel rejection - high image that came out of ImageIntegration in PI. Lots of them!!!

 

This was July 9 - at my latitude there was no true astronomical darkness.  So the sun in the north was lighting up satellites all night long.

 

NGC7000 rejection_high sm2.jpg

 

 


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#2 t-ara-fan

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Posted 24 July 2021 - 10:59 PM

Here is the image with just minimal processing. I will definitely do it again at f/4 or maybe f/5.6. 

 

NGC7000 bn scnr ht csat small.jpg


Edited by t-ara-fan, 24 July 2021 - 11:00 PM.

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#3 Dynan

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Posted 24 July 2021 - 11:06 PM

Gives new meaning to "SkyNet" :smile:

 

Nice Image!


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#4 Professor2112

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Posted 24 July 2021 - 11:08 PM

Very interesting considering I’m currently working on a Cygnus Wall project.  In about 4.5 hours worth of data from last night(180” RGB exposures), I only noticed maybe 5-7 out of 85 subs with satellite trails.  Probably has to do with the 910mm fl vs your 200mm.  I wonder if latitude had anything to do with it as well, I’m at right around 42 degrees. 
 

Nice wide field image of NGC 7000 and company too!


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#5 t-ara-fan

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Posted 24 July 2021 - 11:16 PM

  I only noticed maybe 5-7 out of 85 subs with satellite trails.  Probably has to do with the 910mm fl vs your 200mm.  I wonder if latitude had anything to do with it as well, I’m at right around 42 degrees. 

 With 1/20 the area under inspection, you would see a lot fewer satellites.


Edited by t-ara-fan, 24 July 2021 - 11:19 PM.

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#6 Jim Waters

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Posted 24 July 2021 - 11:26 PM

This kind of stuff is getting worst each year.  Try imaging the Orion area in 4 to 5 months and count the satellites.............................


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#7 Professor2112

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Posted 25 July 2021 - 12:37 AM

 With 1/20 the area under inspection, you would see a lot fewer satellites.

For reference this is the field of view.  I actually think I had APP make a bad pixel map, I’m going to check and see what it looks like and report back just out of curiosity.  I really hope the future increase in satellites does’t go unchecked, and some regulations are put into place sooner than later in order to keep LEO from getting too cluttered to conduct space missions, let alone imaging. At least we have pixel rejection.. can’t do that with space missions!


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