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Old 28-04-2014, 05:12 PM
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PRejto (Peter)
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Join Date: Jan 2011
Location: Rylstone, NSW, Australia
Posts: 1,509
NGC2997 From North Curl Curl

This is "first light" for some new gear that still has a ways to go. It's more a proof of concept than any finished result! The idea is that I can capture in a shorter time if I image simultaneously with my 2 scopes, a TEC180 & TEC140. I've got the Moravian G2-8300 with an ONAG on the TEC180 and a Trius H694 on the TEC140.

At the moment I have no way to centre objects in both scopes but I have an Optec Libre on order for the TEC140. I also have no electronic focuser for the TEC focuser on the TEC180 though one is promised "soon" from Starizona. Consequently I think focus is a bit soft on the TEC180.

I had to crop a lot of the field out due to non-centering of the galaxy and some issues between the two nights I captured. I also experimented with different guiding and exposure lengths. What you see is all of this put together.

Luminance = 24 x 5 min using 80 mm guide scope
+ 12 x 8 min using ONAG + Astronomic CLS LP Filter
Moravian G2-8300 on TEC180 @ .88 arc-sec

RGB = 13 x 5 min each channel
Baader filters/Trius H694 (TEC140) @ .96 arc-sec
CCDStack & Photoshop

http://www.pbase.com/image/155539657
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Click for full-size image (NGC2997 Final  1200x1136.jpg)
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Last edited by PRejto; 07-05-2014 at 12:53 PM.
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