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Because of the current situation, I have, as many of you guys probably have too, spend a lot more time under the stars when possible.
It has literally been over a year since last I was out doing some astrophotography because of work.
So here is my second take after the long break, NGC 3344 (The Sliced Onion Galaxy).
Initially I thought it would be a lot fainter than it was, so it was basically a shot in the dark, of just trying to get back at doing this.
But the final image actually showed a lot more detail than I would've hoped for!
Spring lent a lot of clear night, but those seems to be gone already. I would've hoped for a few more hours to add some more luminance data to it, as I did have to push it quite a bit.
I am not too happy with the shape of the stars either. Guiding was not very stable through the night, even though balance and polar alignment seemed to be good. Might need to update my Celestron PEC data?
Any advice or feedback is very welcome! 🤩
NGC 3344 (Sliced Onion Galaxy)
Luminance - 13x16 min
RGB - 2x16 min each
Flat and Dark calibrated
Total Integration - 5 Hours 4 minutes (LRGB)
Celestron AVX Mount
ZWO ASI 183MM-Pro
Baader 2'' Neodymium Filter
Baader 1,25'' RGB Filters
ZWO Mini EFW
Explore Scientific Coma Corrector
ToupTek Camera G-1200-KMB Mono Guider
Orion Mini 50mm Guidescope
Deep Sky Stacker
By Matt Hayden
What with all this locking down business and home schooling my ten year old son, I have dusted off my TAL-1 and created a slightly less than ideal setup in his room. The westward facing window has been providing great views of the moon and venus over the past week. Obviously doing this indoors is not great (the floor is pretty solid, as is the TAL stand!) but it does mean we get to use the scope every evening, rather than going through the process of carrying the whole rig outside every day.
I have a T-mount converter for my old-ish Pentax k-M DSLR, but have quite disappointing results with the camera, when compared to the observed image using the eye. The eyeball view is nothing less than banging - crystal clear detail with a 25mm eyepiece, strong contrast - it's spectacular. I add the camera with an eyepiece inside a tube, and can't replicate the same result, or anything like it. It's OK, but not good enough.
I've cleaned the eyepiece today and collimated the scope. The primary mirror looks fine other than a couple of tiny dust particles, no scratches or weirdness on the coating. The camera is working pretty well as far as I can tell. Apart from a little clumsy-ness with the adjustments, the clarity in the eyepiece suggests it's all working fairly well. Photo attached of best result from last night.
My question is: is this a focusing issue or some sort of aberration? Should I expect focusing to be difficult in the camera eyepiece? What's going on?! Does anyone have any other tips I can try to get this working better?
I have a nexstar 6se and I love it. I've only had it about a year and it's my first proper telescope. Every opportunity I'm out in the garden both looking through it and attaching my dslr to the back for fainter objects.
I'm noticing I'm getting movement in the longer exposure photos and after a bit of googling I think it's the mount.
So I'm looking to upgrade. I'm thinking something a little future proof but I'm not made of money so decent, reliable, cheaper end but good enough for astrophotography and with the possibility I might continue to add bits and pieces.
What do I need and how much am I looking? Help thanks in advance.
By Geordie mc
Hi. Just starting to use autofocus with the Celestron motor focus and SGP. Can anyone give me some starting points for step size, backlash etc. I’m getting there but wasting a lot of imaging time just trying to get this to work accurately. I’m currently trying a step size of 75 and a backlash of 50. Any tips most appreciated.
By William Productions
Hello, I am an amateur astronomer that wants to get into deep-sky astrophotography. I already have a telescope which is Celestron Nexstar 127 SLT but it doesn't meet the requirements to take photos of wide field nebulaes/galaxies, (Ex: Orion Nebula, Andromeda Galaxy). I need some help on what to use and afford! It has to be under £550.
I need a 70 or 80mm optical tube, with a mount that does polar alignment and can be attached to the optical tube then I need a Canon camera that can take long exposure high ISO photos and last a filter or two to help reduce light pollution and contrast the nebula/galaxy more!
This is just for my birthday, I do not expect the best!
I just need a beginners setup.