ICEINSPACE
Moon Phase
CURRENT MOON
Waning Gibbous 86.1%
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20-05-2005, 09:45 AM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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Orion Shorty x2 Barlow
OK I ordered the Shorty
Is there anything else I really need for now? or is that enough to see me right for a while? Do I really need a fan for the bottom? My founds are running short for a while and I need to get in quick.
Thanx Gazz
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20-05-2005, 09:53 AM
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Registered User
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Join Date: Mar 2005
Location: S.A.
Posts: 1,079
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Did you get the shorty or the shorty plus?
This time of year the cool down times are quicker, just set your scope up for an hour or so to cool it down.
The only other thing you'll need is clear skies.
Slice
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20-05-2005, 12:06 PM
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Compulsive Tinkerer
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Join Date: Jan 2005
Location: Blue Mountains, NSW
Posts: 1,766
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Take a long breath and have a go using what you have at present. After a while other necessary accessories will come up but just buy them as you need them. Buying a heap of accessories is a common mistake people make when they first start out as most of the bits just end up in the bottom of their kit not used eg. my complete kit of colour filters!!
When you have the need for something just post a question here and we will happily help you spend your money
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20-05-2005, 02:37 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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I got the orion barlow shorty-plus x2(1.25")
I thought if I was going to buy one last thing for a while I might as well get something half decent. I got a 9mm and 25 mm GSO plossl fully multi coatedwith the scope. It doesn't say 500 series on them so I'm hoping they are a bit better quality than the Andrews ep's.
If the skies are looking good I normally take the scope out for a while before I use it.
Gazz
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20-05-2005, 02:42 PM
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Sir Post a Lot!
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Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,761
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The 9 and 25 are good. The 15mm plossl is also not a bad buy if you're on a budget, but I agree with Rob, take your time with what you've got.
The 25mm will be good for open clusters and starfields and extended nebula, barlowed it will be good for globular clusters and galaxies.
The 9mm will be good for the planets, and barlowed on nights of very good seeing, for splitting doubles and getting more detail out of the planets.
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20-05-2005, 02:57 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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Thanks guys I really enjoy and(need) the feed back. To tell the truth I'm over the moon with what I've seen so far and can't wait for a dark sky and a clear night. I have to make a trip up to singleton soon and am thinking if its a good night. Take my scope and head out to lake St Clare and see waht the heavens have in store for me.
Last edited by cahullian; 20-05-2005 at 03:13 PM.
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20-05-2005, 02:59 PM
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Registered User
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Join Date: Mar 2005
Location: S.A.
Posts: 1,079
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I think your set.
Get the most out of what youve got now and upgrade out of necessity.
Youve got the basis of a good setup,enjoy it.
Slice
ps A good pair of gloves might be handy.
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20-05-2005, 03:03 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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ha ha i'm from Ireland
This is like summer weather to me ; )
I was out last night with shorts and a t-shirt
Last edited by cahullian; 20-05-2005 at 03:07 PM.
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20-05-2005, 03:12 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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what is the plus for in the shorty?
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20-05-2005, 04:24 PM
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Compulsive Tinkerer
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Join Date: Jan 2005
Location: Blue Mountains, NSW
Posts: 1,766
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Sounds good
On a serious note make sure your scope is outside for at least 40 minutes before observing to let it equilibrate.
Another point, try to observe objects that are at least 30 degrees above the horizon to get the best views. You can observe at lower altitudes but as you are looking through more air the views suffer.
If you keep your scope collimated, allow it to cool down and observe "high" objects you will have a great time.
Keep looking up.
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20-05-2005, 04:27 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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Thanx Rob these are the kind of tips I need : )
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20-05-2005, 04:53 PM
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~Dust bunny breeder~
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Join Date: Nov 2004
Location: The town of campbells
Posts: 12,359
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good on ya
but do you have a collimation tool? (ie cheshire EP)
they are cheap but necesary. get one if you dont have one.
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21-05-2005, 01:21 AM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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Yes Ving
I have a collimation ep but not a cheshire I just line up three concentric circles and away I go.I am getting crystal clear views of the moon and I can make out the main stripes of Jupiter and I also made out cassini's division on Saturn.Even without my orion shorty-plus : ).So I hope I have done the proper job with collimation. Once again keep the tips and hints coming.
Gazz, aka Irish, aka cah.
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21-05-2005, 06:32 AM
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1300 THESKY
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Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,404
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Hi Cah
Not sure of the difference exactly, with the Shorty to the shorty plus.
Just that the "Plus" is better, I have a plain shorty & use it rarely, as I find I loose to much light.
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21-05-2005, 06:08 PM
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Hapkido = Pain
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Join Date: May 2005
Location: Newcastle NSW
Posts: 1,014
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Thanx Ian
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21-05-2005, 06:24 PM
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Registered User
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Join Date: Feb 2005
Location: Launceston Tasmania
Posts: 9,019
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In the advertising the plus indicates the Apochromatic version.
Quote:
Apochromatic :
A lens or optical system virtually free of chromatic aberration, which for practical purposes means that light of at least three different wavelengths is brought to focus at the same point. The best apochromatic lenses use fluorite crystal and may correct three wavelengths with only two optical elements. However, because fluorite is expensive to manufacture, and, because of its brittleness, difficult to grind, polish, and mount, high quality apochromatic refracting telescopes are costly. Reflecting telescopes, on the other hand, are apochromatic in performance without the extra expense.
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21-05-2005, 08:41 PM
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4000 post club member
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Join Date: Sep 2004
Location: Melbourne
Posts: 4,900
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The shorty is a two element fully coated barlow.
The Shorty plus is a three element fully MULTICOATED barlow.
This means that all lens surfaces have mutiple anti-reflection coatings which is a very important performance specification.
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21-05-2005, 09:00 PM
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Purveyor of fine truffles
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Join Date: Feb 2005
Location: Brisbane, QLD
Posts: 212
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The Shorty Plus is the 'apochromatic' version. The normal Shorty is a simple 2 element 'achromat'. The 'Plus' version also has a larger lens to reduce vignetting with wider angle eyepieces.
As Phil says, an 'apochromatic' lens may contain one lens made of fluorite. However the term 'apochromatic' is really a qualitative one and doesn't prescribe any particular optical configuration. The Shorty Plus barlow uses 3 elements of crown and flint glass to achieve its 'apochromatic' status, rather than using fluorite. Neither system is necessarily any better than the other, as far as I know.
The new Meade 5000 barlows employ 4 elements! (at a price!)
I don't know what the Tele Vue PowerMates use...
It all comes down to trying to bring all colours of the spectrum to the same focus, avoiding 'chromatic abberation' or colour fringing around bright objects, which is an inherant property of any simple, single lens.
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21-05-2005, 09:12 PM
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A very 'Senior' member.
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Join Date: Jan 2005
Location: South Coast N.S.W.
Posts: 2,568
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Just like the very expensive mods made to HST. L.
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21-05-2005, 09:39 PM
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1300 THESKY
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Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,404
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Ahh ... well now I understand a little better
I might have to get a Plus for myself, might get a little more use from a barlow then.
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