Hubble photographed a pair of star-forming galaxies

This new image taken by the Hubble Space Telescope captures a pair of spiral galaxies known collectively as Arp 303. It is located at a distance of 275 million light-years from Earth in the direction of the constellation Sextans.

Arp 303 galaxies. Source: Credit: NASA, ESA, K. Larson (STScI), and J. Dalcanton (University of Washington)

Arp 303 consists of a spiral galaxy IC 564 (upper left corner) and IC 563 (lower right corner). Their image is based on two separate sets of Hubble data. The first was obtained by the WFC3 camera (Wide Field Camera 3). Its purpose was to study the regions of active star formation of Arp 303 in the infrared range (newborn stars are active sources of infrared radiation).

The second set of data was collected by the ACS (Advanced Camera for Surveys) camera, which performed a survey of galaxies in this area of the sky. The purpose of the observations was to fill in the gaps in the Hubble archive and search for interesting objects for subsequent observations.

The red, orange and green colors on the image correspond to the infrared radiation recorded by WFC3. The blue color corresponds to the data in the visible range received by the ACS camera.

Earlier we talked about how Hubble photographed the galaxy in the constellation Grus.

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