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My current image, still WIP, but I'm sharing this Hydrogen Alpha image as I thought it looked ok...
This is NGC3603 and NGC3576 (AKA The "Statue of Liberty" nebula), a massive H-Alpha region containing a very compact open cluster, located in the constellation "Carina" about 20,000LY away.
I took this photo on the night of 19th February 2021 using my cooled and full spectrum modded Canon 40D DSLR attached to a 80mm f6.25 refractor on a CGEM equatorial mount.
Exposure time was 3 Hours and 50 minutes (6x600sec, 6x900sec and 4x1200 sec subs), using a 7nm Hydrogen Alpha filter.
I'm still working on the narrowband color image, but this image is quite possibly my last image that I'll produce using just the DSLR before my ZWO2600MM arrives.
The Needle in RGB
A beautiful edge on spiral galaxy in the constellation Coma Berenices, around 38,5 million LY from earth.
Investigations with the Spitzer IR telescope suggests that the galaxy may actually be a barred spiral galaxy with an inner ring as well.
Finally got around to processing my data on NGC 4565 from March.
This was one of my "test projects" from this year, where I only shot R-G-B and created a synthetic luminance master from those frames.
I think that the most efficient way is still to shoot pure luminance and then just enough R-G-B to get the color you want. Unless one is imaging star clusters, then I think it is totally fine to skip luminance altogether and get as much color data as possible.
I will try to do a "super luminance" where I add the R-G-B frames to the luminance stack at some point as well.
Shot with my Hypercam 183m V2 and totalling aroung 4,2 hours of data.
More info here: https://www.astrobin.com/412663/B/
Comments and critique is always welcome.
I decided to put this post in "Getting started with imaging" as it may be interresting for beginners thinking if luminance is worth it.
Probably a stupid question...
Heyyy soo i am a begginer and about to buy my first telescope.A Skywatcher 200
p. I ve just though of something , Since i know filters can be stacked i ve been wondering if i could take visual RGB filters and stack them.Specifically blue green and red in order to create a visual full colour image ,like photography. I know its probably a stupid question because people all over the world would have done this by now .But i m just curious.
This came as a bonus target, I didn't really plan to shoot it, but I took the opportunity to grab some frames before astrodark or with the DSLR or waiting for other targets
So this is a mix of everything:
10x2min Ha with the ASI1600 and 130PDS on the AZ-EQ5.
11x3min Ha with the ASI1600 and Esprit80 on the AZ-EQ5.
19x5min Ha with the ASI1600 and Esprit80, 11 on the AZ-EQ5, 8 on the EQ6-R.
15x5min Oiii with the ASI1600 and Esprit80 on the AZ-EQ5.
74x90s with the DSLR and 130PDS on the AZ-EQ5.
For a total of 5:34h.
Crop of RGB, HOO and HOO-RGB.
Which are your thoughts before I call it the final version?