The IAU defined an internationally agreed set of constellation boundaries in the early 20th century, officially listing 88 constellations and dividing the entire sky into these regions.
Class 6 Science NCERT Chapter 12
Chapter 12 Beyond Earth
What action did the International Astronomical Union (IAU) take regarding constellations?
Share
The International Astronomical Union (IAU) officially defined the boundaries of 88 constellations in 1922, standardizing their names and areas in the sky. This action helped create a universally recognized map of the celestial sphere for astronomers.
For more visit here:
https://www.tiwariacademy.com/ncert-solutions-class-6-science-curiosity-chapter-12/