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NASA has released more than 50 new Hubble images featuring 30 galaxies, star clusters, and nebulae. All of these objects belong to a collection known to astronomers as the Caldwell catalog. This Hubble images shows Caldwell 45, a spiral galaxy located 59 million light-years away in the constellation Boötes. Also known as NGC 5248, this galaxy is notable for the ring structure around its nucleus. These nuclear rings are characterized by hot spots of starburst activity. Caldwell 45 was discovered by astronomer William Herschel in 1784. The galaxy has an apparent magnitude of 10 and can be spotted using a small telescope, though it won’t appear very bright. A larger telescope is needed to make out the galaxy’s spiral arms. The best time of year to observe Caldwell 45 is during the northern hemisphere’s spring and the southern hemisphere’s autumn. This stunning image of Caldwell 45 is a composite of observations made by Hubble’s Wide Field Camera 3 (WFC3) and Wide Field and P

United statesUnited kingdomHubble caldwellCharles messierBerkeley gladys koberWilliam herschelPatrick caldwell mooreUniversity of californiaCatholic university of americaCalifornia institute of technologya filippenkoWide field cameraWide fieldPlanetary cameraCalifornia instituteGladys koberCatholic university