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I started the capture for this target last year, in November, but I couldn't finish then (bad RGB frames and too little exposure time for L). If you think that M101 is one of the faintest Messier objects, think again. Not for nothing they call it the Phantom Galaxy.
Now, with a total exposure of 11 hours and 16 minutes (all frames of 2 minutes), I think I have reached a satisfactory result. Far from perfect- I still have some gradients and a reflection ray into the field (I have it onto all frames, maybe it's a star on the edge of CC). Of course, if I had 3-4 hours of Ha, they would have been good to boost the emission nebulae into the arms. Maybe I'll try this in this season.
Clear skies!
Very nice Marius. You captured a lot of the faint nebulosity around the edges and I like your stars.
I came up with a PixelMath technique for removing the "reflection ray" that worked pretty well. I can show the result and technique if you are interested.
Steve
Steve King: Light Pollution (Bortle 5)
Telescope + Mount + Guiding: W.O. Star71-ii + iOptron CEM40 EC + Orion Magnificent Mini AutoGuider
Camera: ASI 1600MM Pro + EFW Filter Wheel + Chroma 3nm Siii, Ha, Oiii + ZWO LRGB Filters
Software: PHD2; APT; PixInsight ***** My AP website: www.steveking.pictures
That is the one that made my eye hurt and nearly drove me crazy after three nights of trying to see it before I finally did, with my Infinity 80 from my Bortle 6 back yard! I am still trying to figure out how to get even with it! :flame:
Bill Steen
Many small scopes, plus a Lightbridge 12, LX 70-8R,6R,6M
Many eyepieces, just not really expensive ones.
Thats a great image of a very tough object. Well done!
Scope: Skywatcher Evostar 80ED (SW 0.85 FR/FF) on a SW NEQ6Pro
Guiding; SW Evoguide 50ED, ASI 120mm mini
Meade 8" LX200 GPS on wedge (Guided with a cheapo 50mm guidescope and a ZWO ASI 120mm mini)
Sharpstar 61EDPH II (with dedicated 0.8 reducer) with wiliam Optics 32mm uniguide
Camera: ASI2600MC pro. QHY 163M with ZWO 7nm NB filters, Canon EOS700D astro mod
Secondary mount: Skywatcher StarAdventurer
Great galactic details! Love the coloration. Nice wispy dust!
Excellent work sir.
Jim
Scopes: Explore Scientific ED102 APO, Sharpstar 61 EDPH II APO, Samyang 135 F2 (still on the Nikon).
Mount: Skywatcher HEQ5 Pro with Rowan Belt Mod
Stuff: ASI EAF Focus Motor (x2), ZWO OAG, ZWO 30 mm Guide Scope, ASI 220mm min, ASI 120mm mini, Stellarview 0.8 FR/FF, Sharpstar 0.8 FR/FF, Mele Overloock 3C.
Camera/Filters/Software: ASI 533 mc pro, ASI 120mm mini, ASI 220mm mini , IDAS LPS D-1, Optolong L-Enhance, ZWO UV/IR Cut, N.I.N.A., Green Swamp Server, PHD2, Adobe Photoshop CC, Pixinsight.
Dog and best bud: Jack
Sky: Bortle 6-7
My Astrobin: https://www.astrobin.com/users/Juno16/
