When was the first telescope used to view the stars?

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    Galileo Telescope
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Discussion Overview

The discussion revolves around the historical use of the telescope for astronomical observations, specifically focusing on the claims regarding Galileo's role in this context. Participants explore the timeline of the telescope's invention and its application to stargazing, as well as misconceptions surrounding Galileo's contributions.

Discussion Character

  • Historical
  • Debate/contested

Main Points Raised

  • Some participants assert that Galileo is often mistakenly credited with inventing the telescope, while he was actually the first to use it for astronomical observations.
  • Others suggest that the telescope may have been a military secret prior to Galileo's use, implying that it is unlikely no one had looked at the stars before him.
  • One participant mentions that the telescope was invented approximately 50 years before Galileo's observations but was not widely commercialized until shortly before he built his own version.
  • There is speculation that earlier inventors, such as Leonard Digges, may have used the telescope for astronomical purposes before Galileo, who is noted for documenting his findings and their significance.
  • Participants express interest in the rapid advancements in scientific understanding that followed Galileo's observations, highlighting the transformative impact of his work.

Areas of Agreement / Disagreement

Participants generally agree that Galileo was not the inventor of the telescope but rather the first to use it for astronomical observations. However, there is disagreement regarding the extent of prior use of the telescope for stargazing and the details surrounding its invention and commercialization.

Contextual Notes

There are unresolved questions about the timeline of the telescope's invention, the identities of its early users, and the implications of its military origins on its accessibility for astronomical use.

DaveC426913
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Many stories (including most internet accountings) tell of Galileo using the first telescope to look a the stars in 1609. Some reports suggest it was used earlier.

What is the accepted truth re: first use of a telescope to view the stars?
 
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The way you worded that is a little confused: Galileo didn't use the first telescope to view the stars, he was the first to use a telescope to view the stars.

The common misconception is that he invented the telescope.
 
my understanding is that the telescope was a naval military secret (probably Dutch) for many years before Galileo got one…

it's difficult to believe that nobody used it for the stars during that period
 
tiny-tim said:
it's difficult to believe that nobody used it for the stars during that period
Granted - a quick google suggests that it was invented 50 years prior but wasn't commercialized and that it was only a year before Galileo built one that it was "patented" and sold to the Dutch navy. It's concievable that someone invented it in secret before and also very possible the original credited inventer (Leonard Digges) turned it skyward. If so, Galileo would merely be the first to record his observations.

Looking at his wiki, it is amazing just how quick he turned his new toy into a scientific revolution. Having built it and first demonstrated it in August, he discovered the Galilean moons of Jupiter the following January and in a matter of just a few days (good weather!) figured out what they were and what their apocalyptic scientific significance was.
 
russ_watters said:
The way you worded that is a little confused: Galileo didn't use the first telescope to view the stars, he was the first to use a telescope to view the stars.
I see your point. That's what I meant.
 

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