OSIRIS

For other uses, see Osiris (disambiguation) OSIRIS is the name of three entirely separate astronomical instruments. The duplication of names is coincidental, partly driven by two scientific teams trying to make acronyms using similar words.OSIRIS (OH-Suppressing Infrared Integral Field Spectrograph) is an integral field spectrograph for the Keck II telescope in Hawaii. As an integral field spectrograph, it can obtain many spectra simultaneously covering a small region of the sky. As such, it combines the capabilities of a traditional spectrograph and a regular imaging camera. The 'OH suppressing' portion of the name refers to the fact that OSIRIS has sufficient spectral resolution that sky glow from OH molecules can be separated and removed from the spectra of the science targets. OSIRIS covers the wavelength range from 1 to 2.5 micrometres with a spectral resolution of about 3800. Combined with the Keck laser guide star adaptive optics system, it can obtain diffraction-limited observations on extremely faint targets. OSIRIS was developed by the UCLA infrared astronomy lab under Prof. James Larkin and achieved first light on February 22, 2005.
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Osiris (Greek language, also Usiris; the Egyptian language name is variously transliterated Asar, Aser, Ausar, Ausir, Wesir, or Ausare) is the Egyptian god of life, death, and fertility. He is one of the oldest gods for whom records have been found and first appears in the Pyramid Texts around 2400 BCE, when his cult is already well established. He was widely worshiped until the forceable suppression of paganism in the Christian era. Osiris was not only the redeemer and merciful judge of the dead in the afterlife, but also the underworld agency that granted all life, including sprouting vegetation and the fertile flooding of the Nile River. The Kings of Egypt were associated with Osiris in death such that as Osiris rose from the dead so would they, in union with him, inherit eternal life through a process of imitative magic. By the New Kingdom all people, not just pharaohs, were believed to be associated with Osiris at death if they incurred the costs of the assimilation rituals.
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Noun
1. Egyptian god of the underworld and judge of the dead; husband and sister of Isis; father or brother of Horus
(hypernym) Egyptian deity

n. Osiris, ancient Egyptian god of the dead, brother and husband of the goddess Isis

n. Osiris, ancient Egyptian god of the dead, brother and husband of the goddess Isis

n. osiris