What is the Pinwheel galaxy?
Q: What is the Pinwheel galaxy?
A: The Pinwheel galaxy, also known as Messier 101 or NGC 5457, is a face-on unbarred spiral galaxy in the constellation of Ursa Major.
Q: How far away from us is the Pinwheel galaxy?
A: The Pinwheel galaxy is 21 million light-years (six megaparsecs) away from us.
Q: Who discovered the Pinwheel galaxy?
A: Pierre Méchain discovered the Pinwheel galaxy on March 27, 1781.
Q: Who verified the position of the Pinwheel galaxy and included it in the Messier Catalogue?
A: Charles Messier verified the position of the Pinwheel galaxy and included it in the Messier Catalogue as one of the last entries.
Q: What was released in 2006 by NASA and the ESA?
A: In 2006, NASA and the ESA released a very detailed image of the Pinwheel Galaxy.
Q: What was significant about the image of the Pinwheel galaxy released by NASA and the ESA in 2006?
A: The image of the Pinwheel galaxy released by NASA and the ESA in 2006 was the largest and most detailed image of a galaxy by the Hubble Space Telescope at that time.
Q: How was the image of the Pinwheel galaxy composed?
A: The image of the Pinwheel galaxy was composed from 51 individual exposures, plus some extra ground-based photos.
