Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  12.34  ·  13 Mon  ·  14 Mon  ·  15 S Mon  ·  16 Mon  ·  17 Mon  ·  30 Gem  ·  31 Gem)  ·  31 ksi Gem  ·  32 Gem  ·  72 Feronia  ·  73 Ori  ·  74 Ori  ·  74 k Ori  ·  Al Zirr (ξ Gem  ·  Alzirr  ·  B37  ·  B38  ·  B39  ·  Christmas Tree Cluster  ·  Hubble's variable neb  ·  IC 2169  ·  IC 446  ·  IC 447  ·  IC 448  ·  LBN 887  ·  LBN 889  ·  LBN 895  ·  LBN 898  ·  LBN 899  ·  And 57 more.
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10 Degrees in Monoceros - Some Familiar Objects - A First Light in OSC, Alan Brunelle
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10 Degrees in Monoceros - Some Familiar Objects - A First Light in OSC

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10 Degrees in Monoceros - Some Familiar Objects - A First Light in OSC, Alan Brunelle
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10 Degrees in Monoceros - Some Familiar Objects - A First Light in OSC

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To be exact, 9.96 x 6.66 degrees in Monoceros.  I was expecting more from this field, actually.  However, I really should have expected nothing this night.  A completely unexpected break in the clouds, after the latest storm front passage left me scrambling, I decided I would not have time to set up in my usual spot, so walked the rig onto the deck and did a quick polar alignment.  I was hoping to get the "hot" subjects in Orion, but they were getting close to meridian and my roof, so decided to point a bit further north and east to give me a bit more time on the subject.  This was a field that I thought would yield more, and I do believe that given more than the 1hr 12min, that will come to pass some day.  In any case, I put the best I could in processing this, and here is the result.  Not thrilled and not really a complete project, but for first light and maybe months 'till the next open slot, it will do.   

Within this field are a number of Sh2's, LBN's and NGC's, some of which are pretty famous and generally better targets for longer focal length instruments.  I do believe that given a longer integration time that this field will fill out nicely.  And I promise to come back to this with the 135.  However, I will be tempted to move the field so that I can include the Rosette, which is just clipped in the lower right of my frame as it is situated in this presentation.  I think that would fit nicely.  But not sure with this exposure if I would miss anything in the upper left, so...  In any case, at this integration, this image is not meant to be pixel peeped!  Hopefully this will give some an idea of what the greater Christmas Tree/Fox Fur region is like, if they have been restricted to narrow fields with their instruments.  There is a hint that there is a lot of dark molecular cloud throughout those dark regions.  I think the dearth of galaxies here proves that.  

I got a chance to put my new lens through a trial dry run.  This is the second Rokinon 135, the first one not up to the task and was returned.  I have reason to believe that I have a keeper with this one, after some "star testing" during the last couple weeks on even shorter clear shots.  However, the tilt and backfocus issues I had thought to solve seemed to reappear.  But I am sure these are not the lens' fault.  Because of this, I put some effort into the completion of the rig.  A photo is posted:image.png
The rig may look a little over-designed!  That may be true.  Maybe the weeks of Pacific Storms (last night 30 ft at 14 sec, waves at the shore) does that to us who live here!  But I will describe a bit about the why's here.  From testing, I had found that the dew shield that came with the 135 is very significantly improved by extension.  So long as it flairs to prevent vignetting.  This I did with some fairly stiff thin foam.  The extended dew shield and square aperature mask (stiffener) also serves to isolate the possibility of heat currents from the computer rising in front of the lens.  The white "mask" you see loosely placed in the front is my flats screen.  It is made of a thin translucent plastic that serves as a passive screen when pointed at the sky, etc.  The main goal of this design was  that the lens, focuser, dew heaters, camera be a self-contained unit on a Vixen dovetail.  I can disconnect the cables and pop it off the Vixen clamps, which are easily accessed and seen here.  What is left with the mount is the guide scope/camera (which I never ever fool with), computer and the power brick with cable management untouched on the large Losmandy plate/mount.  The intention is that the guts of the power/communication system and guide scope will stay on the mount.   My 90mm refractor (when I get it) with a vixen dovetail will then easily pop onto the rig and all I need to do is plug in the cables and I be ready to shoot!  This is meant to be a travel rig.  For car camping, not necessarily for flying or hiking.  But I thought, why not have a single rig that allows me to shoot with either very widefield (135), widefield (90mm with reducer/flat) or standard or even narrower with the 90.  The weight profile of the AM5 is a bit much for the 135, but dead on for a 90mm scope without the need for extention or counterbalance, so ideal for a wide, semi-wide optic.

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