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Hey guys! Its been 8 months since i ve started the hobby of astronomy.I would like to dig deeper now,i am looking for a book in astrophysics that involves mostly formulas and mathematics.With so many books in the market its hard to defferentiate science books from just books with information about the subject
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.
Hi everyone - it's been a while!
This has been on my hard drive for almost 2 months and I finally got round to processing it...it was quite optimistic of me to try and image this from my Bortle 7-8 back garden, but I gave it a go! While the nebula itself is clear to see, all those gorgeous dust clouds surrounding it were extremely hard for me to capture from my location without a lot more integration time. I think I'll head to dark skies to capture this one next time, along with some more focal length!
LRGB shot with ASI1600MM Pro and WO Z73. 2.9 hours of integration time.
Full details here.
Thanks for looking!
This is a recent edit of data I collected back in January. Image is taken with a Canon 450Da and Canon EF L 70-200mm f/2.8 lens sitting on a Sky-Watcher Star Adventurer. It’s quite a large crop from a 200mm frame. 25 x 3 min guided subs. Stacked in SiriL and processed in Photoshop. Image taken in Northumberland under Bortle 3 skies.
By LR Watanabe
Okay, this is yet to happen, but in one year or so, I'll be fortunate enough to be in the position of being able to spend a whopping 1200$ on one telescope/mount and all that [removed word].
Like a narrowband filter narrows the light going through the eyepiece, I've narrowed it down to either getting something of your recommendations OR a Sky Watcher 10" Flextube Dobsonian. Since, by that time, I'll already have a HEQ5 and a 150 PDS that'll be used for taking Astrophotos, I thought I might as well get something for visual observations of mostly galaxies (and sometimes nebulae), too. Dobsonians are the best as they offer the most aperture, which is what I've heard from at least 1000 beginner-aimed websites like "What telescope should you choose?" In the end, it all boils down to aperture for DSO visual astronomy, and so my heart is set upon a good Dob under 1200$– a Sky Watcher 10" Flextube.
What do you think of this? A 10" flextube Dob by SW, a company known for making quality products (and some rubbish ones somtimes, too)?