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By Davide Simonetti
Wow, what a difference a dark sky and a fast scope makes! It's been a while since I last imaged this galaxy and this time I tried it using the 150mm Newtonian on its first outing to a place with much darker skies than murky north London where I usually operate from. This shot was done from Kelvedon Common in Essex and the difference between this and my earlier attempts is incredible - I could see from the first sub that this was going to be a vast improvement. Once it was stacked it needed very little processing. I wish more than ever to move out of the city now
20 x 120 second exposures at 400 ISO (58 minutes integration time).
12 x dark frames
79 x flat frames
21 x bias/offset frames (subtracted from flat frames only)
Captured with APT
Guided with PHD2
Processed in Nebulosity and Photoshop
Skywatcher EQ5 Mount
Orion 50mm Mini Guide Scope
ZWO ASI120 MC imaging and guiding camera
Canon 700D DSLR
I have been trying as I might to get some good lights of M51 over the last few months but the clouds only clear when its a full moon
I managed to get two 600s images last night with no moon but then high cloud appeared and although I could see the stars, my camera picked up the haze of clouds.
Anyhow, here is a quick process of my lights ( 300s x 15 and 600s x15 ). Not cropped...look closely and you can see the stacking
Hope you like.
Taken with C11 at f/10 using ATIK4120EX OSC on a Mesu 200 mount. Over the last few months of 2017.
By Victor Boesen
So I am currently at my grandma and grandpas, and they live in an area where the milky way is clearly visible at moonless nights. I took advantage of this the other day as the sky was clear, so I get my telescope, binocular and camera outside at dusk. My main goal was to try out my 50mm f/1.8 lens for the first time under darks skies, but i also wanted to try out my bins(naturesport 10X50 wa). I shot a couple of test frames all over the sky to check out what I should focus on. As I took a frame of the handle of the big dipper, I tried zooming in at the area where i knew m51 would be placed. Even tho I didn't expect anything as the moon was full, I noticed a slight glow from the galaxy. This made me really excited as I wasn't expecting to capture it with a 50mm lens. I checked the area where m101 was located, and wow! I could also see this galaxy!
Because of all of this, I continued shooting frames at this target, so in the end, I had 75 frames of 6 seconds each, f/3.2 and iso 800 taken with a nikon d3300. processed in deep sky stacker and adobe lightroom cc 2017.
Any feedback is appreciated!
Here is a image that i did the other night of M51 using an GSO RC8 scope with a Trius 694 camera.
5 min subs of each channel LRGB with 12 subs in each channel.
This is the first time I have been playing with Pixinsight and loving the software but my results are still not brilliant, i think i need more data for this one and when the devils lightbulb is not in the sky
Any feedback and tips or help would be much appreciated
Updated with Ollys suggestion of SCNR