What is M45 (The Pleiades) in terms of age compared to M67?
Answer
It is extremely young by comparison, likely only around 100 million years old.
The Pleiades (M45) is cited as an example of a very young cluster, estimated to be only around 100 million years old, contrasting sharply with M67's 4 billion years.

Related Questions
Which Messier object is most frequently cited as the oldest structure in the catalog?What was the primary original purpose of Charles Messier compiling his catalog?What is the estimated age of Messier 67?How does the expected lifespan of a typical open cluster contrast with that of a globular cluster?Why is M67 visually fainter compared to younger, brighter open clusters like M45?In which constellation is Messier 67 located?When did Messier officially record the discovery of M67?What is the approximate lifespan expected for typical, young open star clusters?What is M45 (The Pleiades) in terms of age compared to M67?What scientific insight does locating M67 offer observers regarding the Milky Way?How many recognized objects are listed in the Messier Catalog mentioned in the text?