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The first time I tried to image this object it was during a glaring full moon which washed out the image so I promised myself I'd have another go on a clear moonless night. This is the result, a big improvement on the previous attempt although I did use a few of the better subs from that night to improve the signal to noise ratio.

17 x 8 minute exposures at 400 ISO
11 x dark frames
10 x flat frames
21 x bias/offset frames (subtracted from flat frames only)

Captured with APT
Guided with PHD
Processed in Nebulosity and Photoshop

Equipment:
Celestron NexStar 127 SLT
GoTo AltAz mount with homemade wedge
Orion 50mm Mini Guide Scope
ZWO ASI120 MC imaging and guiding camera
Canon 700D DSLR

Needle.jpg

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    • By Xiga
      Hi guys
      I'm breaking the cardinal rule here of posting late at night, right after finishing PP, so let's see what sense the dawn brings! ? 
      I shot this in the early hrs of 29th of March. There was no moon present (i think!) and conditions were pretty good, AFAIK. 
      This is 28 x 360s, so about 2.75 hrs in total. Taken as usual with the D5300, IDAS-D1, and SW 80ED. 
      APP used for stacking and gradient reduction, everything else done in PS. 
      Would have liked twice, or 3 times, the data, but it's just not happening, so i've just decided to process what i've got. 
      Thanks for looking, and all CC welcome as always ?

    • By gorann
      I had almost given up on my chances of trying my new Esprit 150 before astrodarkness will be gone from up here, but last night gave me the opportunity. Very nice and clear and surpisingly dark for about three hours. So here is two hours of first light with the Esprit (10 x 12 min at ISO1600). Guiding was bad (RSM around 1.5"), probably due poor polar alignment (the pillar has probably shifted a bit when the ground now has thowed out) and possibly some balancing issues since I put the Esprit next to my ES 5" refractor (which turned out to point at some random target...). I hope to collect another two hours tonight, but here is the real first light. Camera: Canon 60D (unmodded). The scope is fitted with the dedicated SW flattener.
      The sky is a bit noisy since the air temperature was around 10°C - so not the subzero air that normally chills my DSLRs up here.
      Cheers
      Göran
      EDIT: I uploaded a new version with less noisy sky


    • By Davide Simonetti
      The Needle Galaxy, a new target for me and one that's been on my 'to do' list for a while. With a glaring full moon and patchy cloud it wasn't the best of conditions for imaging a faint object like this,  but I could see from the subs that something would come out so,it was worth persevering. Despite the moon glare one of it's companion galaxies also came out. Now that I know it is possible to image this gorgeous object from London I want to try again on a clear night with no moon and really do it justice.
       
       9 x 8 minute exposures at 400 ISO
      11 x dark frames
      10 x flat frames
      21 x bias/offset frames (subtracted from flat frames only
      Captured with APT
      Guided with PHD
      Processed in Nebulosity and Photoshop
      Equipment:
      Celestron NexStar 127 SLT
      GoTo AltAz mount with homemade wedge
      Orion 50mm Mini Guide Scope
      ZWO ASI120 MC imaging and guiding camera
      Canon 700D DSLR

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