Lesson plan
Binary galaxy
A binary galaxy is a system of two interacting galaxies where their distance is 5-10 times less than the distance of the nearest galaxies of comparable brightness and dimension. The orbital periods of these galaxies are typically in the timescales of hundreds of millions of years. The Milky Way galaxy and the nearest galaxy, Andromeda Galaxy may be classed as a binary galaxy. and Andromeda galaxies are thought to be binary galaxies. Binary galaxies, if spaced out a large distance, can be stable. However close pairs of galaxies can cause disruptions to their structures. They can also merge and become an interacting galaxy. These pairs of galaxies are useful in the field of astronomy to determine the mass of galaxies.
Article summary
A binary galaxy is a system of two interacting galaxies where their distance is 5-10 times less than the distance of the nearest galaxies of comparable brightness and dimension. The orbital periods of these galaxies are typically in the timescales of hundreds of millions of years. The Milky Way galaxy and the nearest galaxy, Andromeda Galaxy may be classed as a binary galaxy. and Andromeda galaxies are thought to be binary galaxies. Binary galaxies, if spaced out a large distance, can be stable. However close pairs of galaxies can cause disruptions to their structures. They can also merge and become an interacting galaxy. These pairs of galaxies are useful in the field of astronomy to determine the mass of galaxies.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.