Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our
fascinating universe is featured, along with a brief explanation
written by a professional astronomer.
2020 August 4
NGC 2442: Galaxy in Volans
Image Credit & Copyright: Processing: Robert Gendler & Roberto
Colombari
Data: Hubble Legacy Archive, European Southern Observatory
Explanation: Distorted galaxy NGC 2442 can be found in the southern
constellation of the flying fish, (Piscis) Volans. Located about 50
million light-years away, the galaxy's two spiral arms extending from a
pronounced central bar have a hook-like appearance in wide-field
images. But this mosaicked close-up, constructed from Hubble Space
Telescope and European Southern Observatory data, follows the galaxy's
structure in amazing detail. Obscuring dust lanes, young blue star
clusters and reddish star forming regions surround a core of yellowish
light from an older population of stars. The sharp image data also
reveal more distant background galaxies seen right through NGC 2442's
star clusters and nebulae. The image spans about 75,000 light-years at
the estimated distance of NGC 2442.
Tomorrow's picture: sun dagger
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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
NASA Official: Phillip Newman Specific rights apply.
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