The list of astronomy acronyms and abbreviations.

All astronomy related acronyms and abbreviations.

Stands For|0Abbreviated As|6Related|1.5k

1,530 entry under topic. ×

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HB:
Horizontal Branch(Celestial object, Celestial objects, Astronomy)
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HBRP:
High-magnetic field Radio Pulsar(Celestial object, Celestial objects)
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HBe:
Herbig Be star(Celestial object, Celestial objects, Astronomy)
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HCS:
Heliospheric Current Sheet(Celestial object, Celestial objects, Astronomy)
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HH:
Herbig-Haro(Celestial object, Celestial objects, Astronomy)
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HLIRG:
HyperLuminous Infrared Galaxy(Celestial object, Celestial objects)
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HMPO:
High-Mass Proto-stellar Object(Celestial object, Celestial objects)
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HMXB:
High-Mass X-Ray Binary(Celestial object, Celestial objects, Astronomy)
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HVC:
High Velocity Cloud(Celestial object, Celestial objects, Astronomy)
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HVS:
High Velocity Star(Celestial object, Celestial objects, Astronomy)
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HyperVelocity Star(Celestial object, Celestial objects, Astronomy)
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IC:
IntraCluster(Celestial object, Celestial objects, Astronomy)
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ICM:
IntraCluster Medium(Celestial object, Celestial objects, Astronomy)
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IDP:
Interplanetary Dust Particle(Celestial object, Celestial objects)
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IGM:
Intergalactic Medium(Celestial object, Celestial objects, Astronomy)
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IMBH:
Intermediate-mass Black Hole(Celestial object, Celestial objects)
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INS:
Isolated Neutron Star(Celestial object, Celestial objects, Astronomy)
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IPMO:
Isolated Planetary Mass Objects(Celestial object, Celestial objects)
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IRDC:
Infrared Dark Cloud(Celestial object, Celestial objects, Astronomy)
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ISM:
Interstellar Medium(Celestial object, Celestial objects, Astronomy)
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APASmart Define. (2018). astronomy. Retrieved September 26, 2026, from http://smartdefine.org/astronomy/abbreviations/r/celestial_object
ChicagoSmart Define. 2018. "astronomy" http://smartdefine.org/astronomy/abbreviations/r/celestial_object (accessed September 26, 2026).
HarvardSmart Define 2018, astronomy, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/astronomy/abbreviations/r/celestial_object>.
MLASmart Define. "astronomy" 9 February 2018. Web. 26 September 2026. <http://smartdefine.org/astronomy/abbreviations/r/celestial_object>