Looking for images of same object, but with different telescope sizes?

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Discussion Overview

The discussion revolves around the request for images of celestial objects, such as Jupiter and Andromeda, captured through telescopes of varying sizes. Participants explore the differences in image quality and detail that different telescope sizes can produce, with a focus on practical examples and personal experiences in astrophotography.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant seeks images of the same celestial objects taken with different telescope sizes to understand the differences in image quality.
  • Another participant shares a personal website showcasing images of various objects taken with different telescopes and cameras, including Jupiter, Saturn, and the Orion Nebula.
  • A newer participant expresses interest in seeing what a 6-inch Dobsonian telescope can achieve in terms of imaging capabilities.
  • One participant notes that while Dobsonian telescopes are not typically used for imaging, 6-inch Newtonians can be, and provides links to examples.
  • Another participant clarifies the distinction between Dobsonian and Newtonian telescopes, emphasizing the mount type rather than the optical design.
  • A participant reflects nostalgically on their experiences with astrophotography in New Zealand, mentioning the ease of guiding large research telescopes with Dob-style mounts.

Areas of Agreement / Disagreement

Participants express varying levels of experience and interest in astrophotography, with some agreeing on the capabilities of different telescope types while others highlight the limitations of Dobsonians for imaging. There is no consensus on the best approach or specific examples of images from different telescope sizes.

Contextual Notes

Some discussions involve assumptions about the capabilities of different telescope types and the conditions under which images are taken, such as exposure times and equipment used, which may affect the comparability of images.

Who May Find This Useful

Astronomy enthusiasts, amateur astrophotographers, and individuals interested in understanding the impact of telescope size on image quality may find this discussion relevant.

nukeman
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Hey guys,

Iv been looking for this, but can't seem to put it together.

Mainly I am looking for images of the same object, like Jupiter or andromeda, with various sizes of telescopes, showing the difference in image of small telescopes to large ones.

Like, a small dob, to a 6, to a 8 and beyond. Kinda like that.

Anyone help me out?

Thanks! :)
 
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I've imaged several objects with several different telescopes: http://www.russsscope.net/

Among them:
-Jupiter, Saturn and Mars with two different telescopes and three different cameras and various Barlow lenses.
-The Orion Nebula with two different telescopes, plus a 135mm SLR lens and two different cameras.

You can also use astronomy software to calculate a field of view for you and show you a simulation of what you'd see.
 
Wow, VERY nice images!

I am looking for images a 6 inch dob is capable of?

I am VERY new to telescopes, and just picked up a 6inch dob on sale, and a 2 inch adapter.

Want to see some images a 6 inch dob is able to make.

Thanks


russ_watters said:
I've imaged several objects with several different telescopes: http://www.russsscope.net/

Among them:
-Jupiter, Saturn and Mars with two different telescopes and three different cameras and various Barlow lenses.
-The Orion Nebula with two different telescopes, plus a 135mm SLR lens and two different cameras.

You can also use astronomy software to calculate a field of view for you and show you a simulation of what you'd see.
 
Dobs aren't usually used for imaging but 6" Newtonians can be. See http://www.telescope.com/control/product/~category_id=optical_tube/~pcategory=telescopes/~product_id=09786/~sSearchSession=730afff3-3088-4236-ab21-d0f87fc83ac4", for example.

http://home.comcast.net/~patforster/astro/m57nebulosity.jpg" Notice the differences in scale. There are differences in exposure times, cameras, focal length, etc... which makes comparisons less straightforward.
 
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a beautiful set of pix Russ, makes me severely miss the dark skies I had back in New Zealand and the astro photo's my friend and I did on many cold dark nites.


clarification... a dob (Dobsonian) is a Newtonian scope. the "dob just describes the type of mount that the Newtonian is in (Alt-Az) as a difference from an equatorial mount.

my current scope is a 8" f4.5 Dobsonian mount
An interesting thing is that many of the very large research scopes these days are often a Dob style mount. They are, just as a home dobo scope would be, easy to guide with computer control :)

Dave
 

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