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The Infrared Optical Telescope Array (IOTA) was a stellar interferometer array. IOTA began with an agreement in 1988 among five Institutions, the Smithsonian Astrophysical Observatory, Harvard University, the University of Massachusetts Amherst, the University of Wyoming, and MIT/Lincoln Laboratory, to build a two-telescope stellar interferometer for the purpose of making fundamental ...
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
Iota 1 Cygni, Latinized from ι 1 Cygni, is a probable binary star [6] system in the northern constellation Cygnus, and is separated by less than a degree from its brighter visual neighbor, Iota 2 Cygni. [9] It is near the lower limit of visibility to the naked eye with an apparent visual magnitude of 5.75. [8]
Iota Ursae Majoris (ι Ursae Majoris, abbreviated Iota UMa, ι UMa), also named Talitha / ˈ t æ l ɪ θ ə /, [14] is a star system in the northern circumpolar constellation of Ursa Major. It has an apparent visual magnitude of 3.14, [ 2 ] making it visible to the naked eye and placing it among the brighter members of this constellation.
Livegap Charts creates line, bar, spider, polar-area and pie charts, and can export them as images without needing to download any tools. Veusz is a free scientific graphing tool that can produce 2D and 3D plots. Users can use it as a module in Python.
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Iota Carinae (ι Carinae, abbreviated Iota Car, ι Car), officially named Aspidiske / ˌ æ s p ɪ ˈ d ɪ s k iː /, [11] is a star in the southern constellation of Carina. With an apparent visual magnitude of 2.2, [ 2 ] it is one of the brighter stars in the night sky.
ι Pictoris, Latinized from Iota Pictoris, is a suspected multiple star system [6] in the southern Pictor constellation. It is visible to the naked eye as a dim, yellow-white-hued point of light with a combined apparent visual magnitude of 5.28. [ 6 ]