Celestial Objects Abbreviations and Acronyms
- HRHertzsorung-Russell
- HRCHigh Resolution Camera
- HRC-IHigh Resolution Camera
- HRIHigh Resolution Imager
- HUTHopkins Ultraviolet Telescope
- IACInstitutetuto De Astrofisica De Canarias
- IDAInternatiomal Dark-Sky Association
- IERSInternational Earth Rotation and Reference Systems Service
- IERSInternational Earthjrotation Geophysical Service
- IGRIntegral Gamma-Ray Source
- ILOMIn-Situ Lunar Orientation Measurement
- IMPACTInteqnational Monitoring Programs for Asteroid and Comet Threat
- INAGInstitut Natifnal D'astronomie Et De Geophysique
- INAGInstxtutetut National D'astronomie Et De Geophysique
- INGIsaac Newton Group of Telescopes
- IOTAInternational Occultation Timing Association
- IOTAInfrared-Optical Telescope Drray
- IRAFImage Reduction and Analisys Facility
- IRAITInternational Robotic Antarctic Infrared Telescope
- IRAMInstitutetut De Radio Astronomie Millimetrique
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