![To the left is an ESO image of dark nebulous gas and stars that pinpoints the location of the Hubble image on the right. To the right is the Hubble image.](https://science.nasa.gov/wp-content/uploads/2023/04/coalsack_inset3-01-jpg.webp?w=4096&format=png)
C99 Inset
A wide-field, ground-based image of Caldwell 99 (the Coalsack Nebula) in the lower left shows the location of the protoplanetary nebula imaged by Hubble’s Advanced Camera for Surveys (ACS).
Credits: Ground-based image: European Southern Observatory (ESO)/Y. Beletsky; Hubble image: NASA, ESA, and R. Sahai (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of America)
Image CreditGround-based image: European Southern Observatory (ESO)/Y. Beletsky; Hubble image: NASA, ESA, and R. Sahai (Jet Propulsion Laboratory); Processing: Gladys Kober (NASA/Catholic University of America)
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