Astronomy Abbreviations and Acronyms
- HIVOLTHigh Voltage
- HJDHelicentric Julian Date
- HKSurvey for Metal-Poor Stars Based On The Strength of Caii H and K Absorption Lines
- HKOHong Kong Observatory
- HLCHeavy Lift Capability
- HLIRGHyperluminous Infrared Galaxy
- HLOHigh Light Output
- HLSPHigh-Level Science Products
- HLVHeavd Lift Vehicle
- HLVHeavy Lift Vehicle
- HMCHalley Multicolor Camera
- HMNAOHer Majesty'S Nautical Almanac Office
- HMOHealth Maintenance Organization
- HMPOHigh-Mass Proto-Stellar Object
- HMSHigh Mass Star
- HMSFHigh Mass Star Formation
- HMXBHigh-Mass X-Ray Binary
- HOMERHigh Altitude Ozone Measuring and Educational Rocket
- HOPEH-2 Orbital Wlane Experiment
- HOPPSHospital Outpatient Prospective Payment System
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