Short Answer
For a galaxy 200 Mpc away, a useful standard candle would be the .
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q26: Distinguish an Sa from an Sc galaxy.
Q99: In active galaxies, their central engines may
Q100: A billion- solar- mass black hole would
Q103: The greatest variation in size, mass, and
Q103: Distinguish an E0 from an E7 galaxy.
Q105: Space itself is expanding.
Q106: In Hubble's "tuning fork," spirals are on
Q107: The Local Group consists of about _
Q108: According to Hubble's Law, a galaxy with
Q109: The Virgo Cluster of galaxies is not