Quote:
Originally Posted by Quark
Hi Solanum,
Their are many objects that the OIII seems to work well with, NGC2736 Herschells Ray, NGC3199 The Southern Crescent, IC 3199 The Runing Chicken, NGC 2359 Thors Helmet and IC 2944 to name a few.
Regards
Quark
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Hi Quark,
You seem to have got yourself a bit confused with some of these targets.
NGC 2736 while "sometimes" referred to in texts as Herschel's Ray, is more commonly known amongst amateur astronomers as "The Pencil". It is a detached segment of the Vela Supernova Remnant lying about 4 degrees to the East of the main part of the remnant.
IC 3199 is a 15th magnitude galaxy in Virgo and an OIII filter wont help squat with it.
The Running Chicken Nebula is IC 2948 which is attached to the Lamba Centauri Cluster which is designated IC 2944. The OIII helps on the nebulosity (IC 2948) but noticeably dims the cluster (IC 2944)
It is also worth noting that the Astronomiks UHC filter also works very well on the same targets. It doesn't do quite as well on the Pencil as the OIII but still does very well and shows a noticeable improvement over the unfiltered view. You cannot compare the performance of a top quality UHC filter which is a "narrowband" nebula filter to your Meade "broadband" nebula filter. Also keep in mind that even the Meade "narrowband" nebula filter is not near the class of the Astronomik narrowband filter (UHC).
Cheers,
John B