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JWST discovers massive and compact quiescent galaxy (phys.org)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 1 year ago

1" means 1 arcsecond, not 1 inch, for the Americans. 1 arcsecond is 1/60th of an arcminute. 1 arc minute is 1/60th of degree. So the 1" scale shown represents 1/3600th of a degree. The object is measured at 1.54 arcseconds

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