UY Scuti is a red super-giant star the constellation Scutum . It is one of the largest star by radius. UY Scuti is located a few degrees north of the A - type star Gamma Scuti and northeast of the Eagle Nebula. UY Scuti is located a few degrees north of the A - type star Gamma Scuti and northeast of the Eagle Nebula . D ue to its distance and location in the Zone of avoidance within the Cygnus Rift, only it's 9th magnitude is visible . It is c lassified as a semi regular variable with an approximate pulsation period of 740 days. The star is over 1,000 times bigger than the our star and over 100,000 times more luminous than the Sun.It has a maximum brightness of magnitude 8.29 and a minimum of magnitude 10.56. The star's mass is uncertain because it has no visible companion star by which its mass can be measured through gravitational interference (expected to b...