At the bottom left of the image is a picture from a ground based telescope of a galaxy on its side. There is an inset image from Hubble showing a much closer and more detailed view of one of the outer arms of that same galaxy. Blue stars and lots of gas and dust.

Hubble Caldwell 36 Inset V2

Hubble’s Advanced Camera for Surveys (ACS) also captured a large area of Caldwell 36 (NGC 4559) in visible and infrared light, featuring old stars near the galaxy’s core as well as young, blue star clusters farther from the center. The ground-based Digitized Sky Survey (DSS) image at lower left shows the area imaged by ACS. The ACS detector uses two chips that sit close to, but not exactly next to, each other, leaving a gap between the two halves of the image.

Credits: Ground-based image: Digitized Sky Survey; Hubble ACS image: NASA, ESA, and K. McQuinn (Rutgers University); Processing: Gladys Kober (NASA/Catholic University of America)
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Image CreditGround-based image: Digitized Sky Survey; Hubble ACS image: NASA, ESA, and K. McQuinn (Rutgers University); Processing: Gladys Kober (NASA/Catholic University of America)
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