This is Terzan 12, a globular star cluster located about 15,000 light-years away in the constellation Sagittarius. A globular cluster is a celestial body in which tens of thousands to millions of stars are clustered together in a spherical shape. Nearly 150 globular clusters have been discovered so far in the Milky Way. It is a celestial body where you can feel the beauty of the way the stars shine in close clusters.
This image is based on data acquired by the Hubble Space Telescope’s (HST) Advanced Camera for Sky Surveys (ACS) and Wide Field Camera 3 (WFC3). According to the European Space Agency (ESA) and the US Space Telescope Science Institute (STScI), the Hubble Space Telescope’s observation of Terzan 12 is a research project aimed at systematically investigating globular clusters distributed toward the center of the Milky Way Galaxy. Released in August 2016 as part of
Most globular clusters orbit the halo surrounding the structure of the Milky Way’s disk, but some globular clusters also pass through the disk. The galactic disk contains gas containing a lot of dust that easily absorbs and scatters short-wavelength visible light, so celestial bodies distributed along the Milky Way Galaxy (view of the galactic disk from the inside) appear redder than they actually are, and it is said that It may appear to be a different color. This phenomenon is called interstellar reddening.
Terzan 12 is one of the globular clusters affected by reddening, but by comparing images taken by the Hubble Space Telescope ACS and WFC3 with images taken in the past, researchers were able to identify the effects of gas and dust, meaning we were able to avoid it. Observations of Terzan 12 and other objects by the Hubble Space Telescope are expected to help reveal the age and chemical composition of globular star clusters deep within the Milky Way.
The image was initially released on September 7, 2023 by STScI, which operates the Hubble Space Telescope, as well as the National Aeronautics and Space Administration (NASA) and the European Space Agency.
source
- Image credit: ESA/Hubble and NASA, R. Cohen (Rutgers University), NASA, ESA, Stefan Gesar, ESO, Digital Sky Survey, ESA/Hubble, Roger Cohen (Rutgers University), Joseph DePasquale (STScI)
- STScI – Hubble sees a sparkling spherical mass embedded within the Milky Way
- NASA – Hubble sees a sparkling spherical mass embedded within the Milky Way
- ESA/Hubble – Hubble scatters the dust to see a shimmering spherical mass
Text Editing/Syrian Studies Department
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