How certain is the distance to the most luminous supernova? Authors: H. Arp Comments: 5 pages, 3 figures Subjects: Astrophysics (astro-ph) A recent supernova has been reported as exceeding ``the light output of an ordinary supernova by at least two orders of magnitude''. It is noted that it falls in a minor galaxy in the Perseus Cluster. Some evidence indicating a ten times closer distance for the Perseus Cluster than its redshift distance is discussed here. Is anyone listening to HA?