Portable telescopes inside the International space station (ISS)

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Discussion Overview

The discussion centers around the visibility and potential observations from portable telescopes aboard the International Space Station (ISS). Participants explore what celestial objects could be viewed from this unique vantage point, the constraints imposed by the ISS environment, and comparisons to ground-based observations.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant inquires about the visibility from a portable telescope on the ISS and what celestial objects it could potentially observe, noting the need for a window with good optical quality.
  • Another participant expresses curiosity about how views from the ISS would differ from those on the ground, suggesting that the main difference would be the elimination of atmospheric distortion, although window glass would still introduce some limitations.
  • There is mention of the Stellarium program as a tool to visualize the sky and understand atmospheric effects on observations from Earth, though it is noted that actual telescope views may differ from what the software displays.
  • A participant highlights the practical constraints of using a portable telescope on the ISS, including size limitations and the need for careful guiding during observations due to crew movement and the station's motion.

Areas of Agreement / Disagreement

Participants generally agree on the potential for observing celestial objects from the ISS and the impact of atmospheric conditions on ground-based observations. However, there is no consensus on the specifics of what could be observed or the effectiveness of portable telescopes in that environment.

Contextual Notes

Limitations include the dependence on the quality of the window glass for optical clarity and the challenges posed by the ISS's operational environment, which could affect observational results.

akerkarprashant
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TL;DR
Portable telescopes inside the International space station.
I would like to know what will be the visibility from the portable telescope aboard the International Space Station.

What could they potentially view, and what are (at least some of) the things they are known to have looked at?

Presumably they use it *inside* the ISS and not outside, and are therefore constrained by there needing to be a window providing access, to the sky, and the window should have good optical quality to preserve the resolution of the telescope?
 

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Do you have any links to information about this telescope that you can post?
 
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Thanks.

No. General curiosity whether as we the Sky from ground level, with different telescopes, what could be the different views as seen from ISS (470 kilometres above Earth) with different telescopes?
 
akerkarprashant said:
No.
Perhaps Google could help you find some links to post for us to read? Where did you first hear/read about this?
 
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akerkarprashant said:
No. General curiosity whether as we the Sky from ground level, with different telescopes, what could be the different views as seen from ISS (470 kilometres above Earth) with different telescopes?
There would be no essential difference, apart from the elimination of atmospheric distortion and filtering replaced by the effects of a window glass in between.

If you look at the display that Stellarium will give you (that's a free planetarium program which everyone should have), that would give you the best idea of just how much the atmosphere spoils our view from Earth. (Stellarium allows you to turn it on and off). There are limitations to the application and the view through a good telescope on a good night will actually look different - smaller, sharper stars than even a good monitor will show and the magnitudes are not too convincing but you can always zoom in and out to get what you want. Learning to drive the App takes time so don't blame it until you are familiar with all the quirks.

Any telescope that could be taken on board for 'personal observations' would have to be pretty small and storable, away from ongoing work on ISS. All the same limitation for visual observing will be there and multiple, long photographic exposures will give much better results than you get in your garden. You would still need clever guiding to eliminate the problems as crew members wander around, doing their duties and the craft pitches and yaws during an exposure. Hubble and its smaller cousins doesn't have to deal with that; people in space can be a damn nuisance.
 
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