When harlow shapley first estimated our distance from the galactic center he underestimated this distance. why?

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28-07-2022
Social Studies

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When harlow shapley first estimated our distance from the galactic center he underestimated this distance. why?

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tutorconsortium346 tutorconsortium346 · Answer 1 · 2022-08-04T12:23:34+02:00

Harlow Shapley's original estimate of the distance from the Sun to the galactic center was incorrect because it did not take interstellar extinction into account.

What is Galatic Center?

The Milky Way galaxy's revolving center is known as the Galactic Center. It is situated in the direction of the constellation Sagittarius, where the Milky Way looks brightest, around 8 kiloparsecs (26,000 LY) from Earth.
At visible, ultraviolet, or soft X-ray wavelengths, the Galactic Center cannot be studied due to chilly interstellar dust in the line of sight.
The gamma ray, hard X-ray, infrared, sub-millimeter, and radio observations that have been made have provided the information that is now known about the Galactic Center.
Numerous astronomers speculate that the powerful compact radio source Sagittarius A*, which is part of the complex radio source Sagittarius A, may be connected to a supermassive black hole at the center of our Galaxy.

The original estimate was too large because light scattering and absorption by dust made nearer stars look dim—as though they were more distant.

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