ОписаниеESA's Faint Object Camera First Images (1990-06-3).tif
English: Two views of a small (4.6 by 6.2 arcsecond) star field in the galactic cluster NGC 188 containing two stars separated by 2.9 arcseconds in the sky. Located at a distance of about 5,000 light years, both stars are far too remote for their surfaces to be resolved, and are therefore suitable point sources for evaluating optical imaging quality.
Ground Image: Nordic Optical Telescope/Observatorio del Roque de los Muchachos /La Palma.
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
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Two views of a small (4.6 by 6.2 arcsecond) star field in the galactic cluster NGC 188 containing two stars separated by 2.9 arcseconds in the sky.
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