Sunday, July 23, 2006

Big Scope NT Skies

Well we finally have our new 18" dob up here in Gove.
First light was this Sat night & after a bit of a struggle to fit the secondary cage to the trusses & a collumation we were off looking at some of our Favorite DSO's
First thing that was apparent was the need for accurate Collumation of an F4.5 scope !
Jupiter was not as good as I would have expected ?
We stuck with a a 40mm Konig eyepice for most of the evening as this gave the easiest viewing.
The most noticable improvement was the magnitude of stars visable.
It reminded me of looking at a detailed star Atlas, everywhere I looked !
The DSO that stuck in my mind was strangley enough M4, through the 18" it revealed so much more structure !
Omega Cent, the Lagoon Neb, Eta Carina were of course all brilliant !
M27 was a bright ball of light compared to the usual hazy glow & hunting Globs was a snap where ever we looked !
A few necessary additions to the scope:
*A finder scope! we fitted a laser pointer on a mount, which was good for the well known objects, but not so good for hunting the unknown !
*An Eyepiece holder (does anyone sell these ?)
*A good set of charts down to Mag 16
Observing with a group of people with a scope of this size is a bit more of a challenge (especially if kids are involved)
Try climbing a ladder holding a 5 or 6 YO so they can see throught the eyepiece !
I look forward to a clear dark night with no clouds & just a few people so we can really get the best from the scope.

1 Comments:

At 2:15 PM, Anonymous Anonymous said...

Wow, you sure have a big one there.
Sounds like you need a few mods to iron out some of the bugs.
Maybe a good curator would help.
Not a scope to put together by yourself by the looks of the damage already sustained.
Like you say in your other post, it would be good to have the scope out with only a few people,so that eyepieces are not changed before one can get a good look.
Anyway, good luck for the future and maybe sometime we can get a look at Uranus.

 

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