The Hubble Classification for a Galaxy with a Circular Outline

Q75: The fundamental plane technique for ellipticals can

Q76: What is the galaxy content of a

Q77: How does the maser technique work in

Q78: Which spectral feature originating in a

Q79: Why are RR Lyrae variables NOT used

Q80: The Cepheid variables that Hubble observed in

Q81: The overall distribution of galaxies through space

Q82: Suppose an astronomer discovers a distant quasar

Q84: A starburst galaxy is characterized by a

Q85: How many barred spirals are there compared