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My very first stacking of images is a success . For me ;)..:)!

Astrophotography Astrometry Beginner Report Smartphone AP
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#1 ziggeman

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Posted 26 September 2022 - 03:28 AM

Yesterday evening I imaged, platesolved and stacked for the very first time!! yeahhh :)!

 

I took ten 8sec exposures at ISO800 with my smartphone coupled to the eyepiece of my ETX80

 

I platesolved them at astrometry.net and stacked 6 of them .

 

This is only a beginners first try to see whats possible to do with a very simple rig.

 

It shows the simple difference between a sub and a stack of photos. Its still a smudge after stacking but caldwell 47 gets visible in the stack :)

 

Do you remember your first success?

:)

 

Here it is.


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#2 pyrasanth

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Posted 26 September 2022 - 05:12 AM

Well done. You've fallen into a black hole with no escape. I bet you have loads of questions as you take your first steps up the processing cliff face but you are amongst friends who will help you along the way. Don't be afraid to reach out with any questions- we have all been there at one time or another.

 

No question is too simple as those types of questions can initially be the most challenging to overcome.


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#3 EPinNC

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Posted 26 September 2022 - 06:39 AM

Congratulations!  You have tasted one of the most fundamental skills involved in astrophotography -- combining many images into one.  If you compare one of your single shots with your stacked image, you will see how the "noise" is reduced relative to the faint subject.  That right there is the basis for most of what people here do.  There are many other skills to master, of course, but stacking is arguably the most essential of all.  Well done!

 

I remember a couple of notable early images of mine.  First, the single shot of Comet NEOWISE that got me into this hobby:

 

Comet NEOWISE 2020-July-16.jpg

 

Can you see it?  Below the middle and to the right a bit.

 

Second, probably my first actual stack of 63 1-second exposures of the globular cluster Messier 22, using just my camera, a zoom lens at 140mm, and a stationary tripod:

 

r_pp_Messier-22-1.0s-f5.6-iso1600-140mm-63frames_stacked-as-gnr-cc-bgr.jpg

 

This is a tight crop, of course -- it was just a tiny thing in the middle of the frame.  But I could actually (sort of) see that it was made of stars!

 

Never forget the excitement and wonder.  The night sky awaits you!


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#4 matt_astro_tx

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Posted 26 September 2022 - 07:35 AM

Congratulations!  We all start somewhere!  This was mine.
 
M42 Orion Nebula

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#5 ziggeman

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Posted 26 September 2022 - 12:40 PM

Thank you all. I used to shoot with film in the late 70s so this is exciting. Thank god I am used to computers :) 



#6 72Nova

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Posted 26 September 2022 - 08:21 PM

Well done!  My first “success” was stacking a few shots of the Beehive Cluster (M44) from an old dslr camera, a little azgti mount and 80mm refractor.   I used DSS and Gimp.   It’s a terrible image with egg shaped stars and pitch black sky but I was thrilled about my first deep sky image.

 

Welcome to the wonderful rabbit hole 

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  • DEDDF1BE-498E-4EE3-BD12-A3BFFC49A856.jpeg

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#7 ziggeman

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Posted 03 October 2022 - 11:56 AM

The Beehive is a nice cluster. :)

I have now tried two other messiers and found out my computer is a relic dinosaur :p ..

Both memory and harddisc space quickly gets full..


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#8 ziggeman

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Posted 04 October 2022 - 01:19 AM

This picture was taken in the late 1970s with film. ( remember that plastic, light sensible rolls? ;) )

Kodakchrome64, slow film but very nice to take ordinary daytime landscape and family photos with.

Sagitta, globular cluster Messier 71, Orange C14 focal reducer. Ca 10mins exposure.

One of the smallest globs known. Its been a debate whether its a open or glob cluster.

My favorite field, Sagitta.:)Kodachrome64Messier71GlobularSagittaOrangeC14FocalReducerLate1970s.jpg


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#9 AngryBear

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Posted 04 October 2022 - 02:04 AM

This was my first stacked and processed success.

 

Not the greatest but I’ll take it.

FEDF0847-2199-4C50-BD58-6697D877D232.jpeg


Edited by AngryBear, 04 October 2022 - 02:05 AM.

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#10 ziggeman

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Posted 22 October 2022 - 02:36 AM

Second attempt stacking DSO smile.gif

Meade ETX80 80/400 with 0.5 focal reducer and 25mm eyepiece = 200mm fl. 10sec light VS 15x10secs with 15 darks. No flats (I'll do that later ;) )
Smartphone Samsung Galaxy S7 ISO800 and Google app Deepsky Camera Beta No .Raw available only .jpg Stacked with ASTAP and curves adjusted in GIMP.

I am learning! Next time I'll take flats!M13ComparisonSingelsubVS15STACKEDLights_0003_20220929_201607Small.jpg

 

 

 

 

 

 

 

Taken with this configuration:

https://www.cloudyni...770_2282311.jpg

 

Larger version



#11 TelescopeGreg

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Posted 22 October 2022 - 10:43 AM

Excellent progress.  Next is Flats and Dark-flats.  Same idea as Lights and Darks (aka Dark-lights).  Match the exposures within each set, add them into the appropriate tabs in ASTAP, and off you go. 

 

ASTAP will combine the Flats and Dark-flats, leaving a Master Flat in the Flats tab and the Dark-flats tab empty.  That confused me for a bit.  I suppose the master flat can be reused, but it's best to take a new set with each imaging session since dust motes (which are also corrected by the Flats process) can move around.


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#12 TelescopeGreg

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Posted 22 October 2022 - 11:06 AM

Oh, and to the "first" question, I believe this was mine.  Skyris 236C camera, which Celestron led me to believe could be used for deep sky imaging, along with their 8" f/5 Newtonian telescope and AVX mount.  No guider.  I guess this proves that it can work, but wow, what a fast one they pulled on me.  I think Sharpcap was used for acquiring the images, probably Autostakkert! for the stacking.  Absolutely nothing about that setup was right.

 

By the file name, it was 71 subs of 12 seconds each.  M13, July of 2017.  Compare with this past June's Challenge target, and my 5-year anniversary image.

 

Stack_71frames_12s.jpg


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#13 ziggeman

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Posted 22 October 2022 - 02:23 PM

@TelescopeGreg

Thanks for all help. 

:)


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#14 Sheridan

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Posted 24 October 2022 - 02:07 AM

I don't even have my 1st image anymore it was that bad. It was taken with one of the original Orion deep sky color imagers. Thing had a tiny chip and I had it attached to an 8" SCT.
That was probably 2006/7 Real life happened, I put everything away for about 15 years. One night I was goofing around with the camera and a tripod and ended up catching the milkyway
And down the black hole I went again lolol.

Edited by Sheridan, 24 October 2022 - 04:37 AM.

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#15 ziggeman

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Posted 02 November 2022 - 02:02 PM

I agree its a black hole! So much time it takes :pI need to buy more harddisc space ..Well today I took my first flats with a t-shirt atop the scope. 

Thank you all. :)



#16 fewayne

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Posted 02 November 2022 - 05:54 PM

Do I remember my first success? No, but I'm really looking forward to it. :-)
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#17 ziggeman

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Posted 14 November 2022 - 08:18 AM

While trying to figure out why ASTAP does not stack all my lights despite they seem to be the same quality except for movement tho..hrmm,

I did make a try with a 'sideways stacking'! wink.gif A small animation of Neptune. Two frames 15 days between.

The 16 of October and the 1st of November 2022

ETX80 . smile.gifDNXX1small.gif


Edited by ziggeman, 14 November 2022 - 11:55 AM.



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