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Hubble Resolves Pismis 24-1

Hubble Resolves Pismis 24-1


Date: 11 December 2006
Satellite: Hubble Space Telescope
Depicts: Cl Pismis 24, Pismis 24, Pismis 24-1, Emission nebula NGC 6357
Copyright: NASA, ESA and Jesús Maíz Apellániz (Instituto de astrofísica de Andalucía, Spain)

Left: ACS WFC image of emisison nebula NGC 6357 with the star Pismis 24-1 in the centre (the brightest star).

Middle: Looking closer at Pismis 24-1 with Hubble's ACS High Resolution Channel (HRC) it becomes clear that it is in reality two stars.

Right: ACS HRC image close-up showing the two stars comprising Pismis 24-1. Initially it was thought to be a single star with an incredibly large mass of 200 to 300 solar masses. New NASA/ESA Hubble measurements of the star, have, however, resolved Pismis 24-1 into two separate stars, of around 100 solar masses each.

 

Last Update: 1 September 2019
24-Sep-2021 17:56 UT

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https://sci.esa.int/s/8gJ5OVW

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