JWST and HST Side-By-Side

These images shows HST and JWST side by side.  In JWST the stars are snowflaked shaped because the mirrors are hexagonal.  The JWST is about 5 hours and the HST is about 45 hours (giving an idea of the sensitivity) but the wavelength of the JWST is longer than HST so to do same image …

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JWST Images of 47 Tucanae

This is a combination of HST (814 nm is blue, 1500 nm is green and 3200 nm is red).  Galaxies appear in red in the background that are very distant; some are gravitationally lensed — the strange arcs.  The objects indicated with the squares are white dwarfs that we are studying to look for evidence …

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