Author Topic: help picking a real scope  (Read 846 times)

longpetdowntown

  • Active Astronomer
  • ***
  • Posts: 114
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: help picking a real scope
« Reply #30 on: January 31, 2018, 11:09:31 AM »
Quote
Hey Laika: I think your spot on. An 8" DOB is highly portable. Usually the entire setup, scope and mount weighs about 30 to 35 lbs. A normally healthy person should be able do lug it around. Now it's not exactly light, and most truly grab and go setups weight less, but the DOB has some great advantages.
I consider my 8" DOB to be the most versitle scope own. If I had to choose one scope I would go with that DOB. It has enough aperature for many DSOs, as well as the planets. At an F6 it's not bad on EPs. And as a DOB it will be a stable platform.

I agree with this. Then you will have money for your observing chair(pricey), eyepieces(pricey), red light, filtersetc. Never owned a 8 inch dob but I have my 10 and it is great but I would be lying if I said I never missed a night observing due to its size. Sometimes I just don't want to carry it down the stairs. I think the 8 would be more manageable for most people. But if your young and in shapethe 10would work for you as well and still leave money for all the other "needs". Its really more awkward than heavy. You want something you will use, the easier it is to setup and transport, the more use you will get out of it. Personally I never really fancied SCTs, used one for astronomy class in undergrad, which was fine for its stationary pillar but having to set up a big mount every time I want to use it no way. If I'm going to do that its going to be with a refractor. Sorry started rambling...Dobs are great first scopes and can do a lot. It will keep you busy until the refractor bug bites. Good luck and clear skies

quelesmawea

  • Active Astronomer
  • ***
  • Posts: 129
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: help picking a real scope
« Reply #31 on: February 02, 2018, 08:11:34 PM »
Hi:
I think there are two points that should be weighted when one considers the purchase of a scope:  Ease of use and stability. 
I own several scopes, the largest is my 8" DOB.  I also own an Celesteon 8" SCT on a  Nexstar "one arm" mount, which weighs in close to the DOB.  I have a Celestron 90mm f11 achromat on and a Meade LXD 75, and a114mm f8 reflecter on an Orion SkyView Pro mount.    All are competent scopes that do various things well.  However none are as easy to set up and use as my 80mm Orion ED f7.5 APO.  It is supported by a Vixon Porta Mount.   And that's why it gets so much use.   
As I have aged, time, ease of use. and stability have become more important, and they become relevant when the weather turns bad.  I used to stay out with the scopes till 2 or 3 AM often carrying my DOB from my back yard to the front.   Alas, not anymore.  I can stay out late, but the adverse effects on me the next day are too much.  So, long observing sessions are now confined to the weekend or any night when I can sleep in the next morning.
Even when young, the fact is that some scopes are simply inconvenient to use.  My 90mm on the LXD 75 mount comes to mind.  As it weights in about 40 lbs I never considered size a problem.  However, setting up the mount is a hastle.   Polar allignment, running the wires, checking out the allignment, and on and on just takes up time.  The same can be said for the NexStar even if it is lighter.  And that's why my 80mm, and to some degree my DOB, get the most use. 
Again, two considerations continually come to mind:  1) ease of use. 2) proper support (provided by a solid mount)
You can't underestimate either of those points.  It seems like those should be obvious, but it took me 15 years to develope an adequate appreciation for them.

Jerome Fountain

  • Active Astronomer
  • ***
  • Posts: 112
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: help picking a real scope
« Reply #32 on: February 09, 2018, 03:30:53 AM »
Thank you all for all your advice and help! I did get the c9.25 on eq5 mount (my motofocuser is on the way) still learning how to align the thing. A bit more tricky than I thought. Lol but anyway first light was great and Jupiter was astounding! I sprung for the neximage color burst and tried it out night before last. Here's my first stacked and processed image ever. Not the best but it's a start and I think I'm hooked! Lol

Corey Gibson

  • Active Astronomer
  • ***
  • Posts: 133
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: help picking a real scope
« Reply #33 on: February 09, 2018, 09:20:16 AM »
bbcodeImage-js (do not remove or edit this tag)
there it is! sorry, couldn't figure out how to attach it to the earlier post.