NGC 6753 is a whirl of color in this remarkable image from the NASA/ESA Hubble Space Telescope — the bursts of blue throughout the spiral arms are regions filled with young stars glowing brightly in ultraviolet light, while redder areas are filled with older stars emitting in the cooler near-infrared.
This image shows the spiral galaxy NGC 6753, which lies in the constellation Pavo, about 148 million light-years away. Image credit: NASA / ESA / Hubble / Judy Schmidt.
NGC 6753 (also known as LEDA 62870 and ESO 184-22) is a spiral galaxy situated about 148 million light-years from Earth.
Discovered on July 5, 1836 by the English astronomer John Herschel, the galaxy lies in the constellation Pavo.
In May 2000, a Type Ia supernova called SN 2000cj was observed in NGC 6753.
The galaxy is also notable for its galactic ‘corona’ — a huge, invisible region of hot gas that surrounds a galaxy’s visible bulk, forming a spheroidal shape.
Galactic coronas are so hot that they can be detected by their X-ray emission, far beyond the optical radius of the galaxy.
Because they are so wispy, these coronas are extremely difficult to detect.
In 2013, astronomers highlighted NGC 6753 as one of only two known spiral galaxies that were both massive enough and close enough to permit detailed observations of their coronas.
The newly released image of NGC 6753 was made from separate exposures taken in the ultraviolet and near-infrared regions of the spectrum with Hubble’s Wide Field and Planetary Camera 2 (WFPC2), whose optics are noted for near perfectly sharp, diffraction-limited point-source images.
Two filters (F300W and F814W) were used to sample various wavelengths.
The color results from assigning different hues to each monochromatic image associated with an individual filter.
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