List of Astronomy Acronyms - H

H

  • HAeBe – (celestial object) Herbig AeBe star, a type of pre–main sequence star with strong spectral emission lines
    • HAe – (celestial object) Herbig Ae star
    • HBe – (celestial object) Herbig Be star
  • HALCA – (telescope) Highly Advanced Laboratory for Communications and Astronomy, a satellite that is part of the VLBI Space Observatory Program, a Japanese radio astronomy project
  • HAO – (organization) High Altitude Observatory
  • HARPS – (instrumentation) High Accuracy Radial velocity Planet Searcher, a high-precision spectrograph installed on the ESO 3.6m telescope
  • HASI – (instrumentation) Huygens Atmosphere Structure Instrument, an instrument on the Huygens probe
  • HB – (celestial object) Horizontal Branch, a type of evolved red giant star in which helium is burned in the core and hydrogen is burned in a shell around the core
  • HBRP – (celestial object) High-magnetic field Radio Pulsar
  • HBV – (catalog) Hamburg-Bergedorf Variables, a catalog of variable stars
  • HBMM – (astrophysics terminology) Hydrogen Burning Minimum Mass
  • HCO – (organization) Harvard College Observatory
  • HCS – (celestial object) Heliospheric Current Sheet, the boundary where the polarity of the Sun's magnetic field changes direction
  • HD – (catalog) Henry Draper, a catalog of stars
  • HDE – (catalog) Henry Draper Extension, a catalog of stars
  • HDF – (data/celestial object) Hubble Deep Field, an area of the sky with little foreground obscuration that was observed deeply with the Hubble Space Telescope; also the name for the data product itself
  • HDM – (astrophysics terminology) Hot Dark Matter, any

model for structure formation in the universe that characterizes neutrinos as dark matter

  • HDS – (instrumentation) High Dispersion Spectrograph, a spectrograph on the Subaru Telescope
  • HE – (catalog) Hamburg/ESO Survey
  • HEAO – (telescope) High Energy Astronomical Observatory, a series of X-ray and gamma ray space telescopes
  • HEASARC – (organization) High Energy Astrophysics Science Archive Research Center, a NASA organization that deals with X-ray and gamma ray telescope data
  • HESS – (telescope) High Energy Stereoscopic System, a telescope for detecting cosmic rays
  • HETE – (telescope) High Energy Transient Explorer, a space telescope that performs multi-wavelength observations of gamma ray bursts
  • HF – (astrophysics terminology) High Frequency
  • HGA – (instrumentation) High Gain Antenna
  • HH – (celestial object) Herbig-Haro object, objects formed when the ejecta from new stars collides with the interstellar medium
    • also HHO
  • HIC – (catalog) HIPPARCOS Input Catalog, a catalog of data for the first target stars selected for observation by the Hipparcos
  • HICAT – (catalog) HIPASS catalog, a catalog of HI sources, see also NHICAT
  • HID – (astrophysics terminology) – Hardness-Intensity Diagram, a type of color magnitude diagram used in X-ray and gamma ray astronomy
  • HIP – (catalog) HIPPARCOS, the catalog of data produced by Hipparcos
  • HIPASS – (Observing program) HI Parkes All-Sky Survey, survey of HI sources
  • HIPPARCOS – (telescope) HIgh Precision PARallax COllecting Satellite, a space telescope specifically designed to measure distances to stars using parallax
  • HISA – (astrophysical terminology) HI Self-Absorption region
  • HK – (catalog) Survey for metal-poor stars based on the strength of CaII H and K absorption lines
  • HLIRG – (celestial object) HyperLuminous Infrared Galaxy, a galaxy that is brighter than 1013 solar luminosities in the infrared
  • HMC – (instrumentation) Halley Multicolor Camera, an instrument on the Giotto spacecraft
  • HMPO – (celestial object) High-Mass Proto-stellar Object
  • HMXB – (celestial object) High-Mass X-Ray Binary, an X-ray-luminous binary system consisting of a compact star and a massive star
  • HPMS – (celestial object) High Proper Motion Star, a star with high proper motion
  • HR – (catalog) Hoffleit Bright Star
  • HR – (astrophysics terminology) Hertzsprung-Russell, a diagram that compares stars' colors to their luminosities
  • HRC-I – (instrumentation) High Resolution Camera, an instrument on the Chandra X-Ray Observatory
  • HRD – (instrumentation) High Rate Detector, an instrument on the Cassini spacecraft
  • HRMS – (observing program) High Resolution Microwave Survey, a survey for microwave signals from extraterrestrial intelligence
  • HRI – (instrumentation) High Resolution Imager, an instrument on the ROSAT telescope
  • HSP – (instrumentation) High Speed Photometer, an instrument formerly on the Hubble Space Telescope
  • HST – (telescope) Hubble Space Telescope
  • HTRA – (astrophysics terminology) High Time Resolution Astrophysics, the observations of phenomena that vary on timescales of one second or less
  • HUT – (telescope) Hopkins Ultraviolet Telescope, an ultraviolet telescope that operated from the cargo bay of the Space Shuttle
  • HVC – (celestial object) High Velocity Cloud, an interstellar cloud with a velocity that is too high to be explained by galactic rotation
  • HXD – (instrumentation) Hard X-ray Detector, an instrument on the Suzaku space telescope
  • HVS – (celestial object) Hypervelocity Star or High Velocity Star

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