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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RC:
Red Clump(Celestial object, Celestial objects, Astronomy)
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RCB:
R Coronae Borealis(Celestial object, Celestial objects, Astronomy)
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RGB:
Red Giant Branch(Celestial object, Celestial objects, Astronomy)
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RLQ:
Radio Loud Quasar(Celestial object, Celestial objects, Astronomy)
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RQQ:
Radio Quiet Quasar(Celestial object, Celestial objects, Astronomy)
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RRAT:
Rotating Radio Transient(Celestial object, Celestial objects, Astronomy)
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RRL:
RR Lyrae(Celestial object, Celestial objects, Astronomy)
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RSG:
Red Super Giant(Celestial object, Celestial objects, Astronomy)
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RSN:
Radio Supernova(Celestial object, Celestial objects, Astronomy)
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SB:
Spectroscopic Binary(Celestial object, Celestial objects, Astronomy)
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SDO:
Scattered Disk Object(Celestial object, Celestial objects, Astronomy)
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SDOR:
S DORadus(Celestial object, Celestial objects, Astronomy)
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SGR:
Soft Gamma Repeater(Celestial object, Physics, Celestial objects)
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SMBH:
Super Massive Black Hole(Celestial object, Celestial objects, Astronomy)
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SMC:
Small Magellanic Cloud(Celestial object, Celestial objects, Astronomy)
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SN:
Supernova(Celestial object, Celestial objects, Astronomy)
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SNR:
Supernova Remnant(Celestial object, Celestial objects, Astronomy)
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SQM:
Strange Quark Matter(Celestial object, Celestial objects, Astronomy)
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SS:
Symbiotic Star(Celestial object, Celestial objects, Astronomy)
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SXARI:
SX ARIetis(Celestial object, Celestial objects, Astronomy)
For more, try ASTRONOMY on ALL ACRONYMS DICTIONARY
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APASmart Define. (2018). astronomy. Retrieved September 27, 2026, from http://smartdefine.org/astronomy/abbreviations/r/Celestial_object
ChicagoSmart Define. 2018. "astronomy" http://smartdefine.org/astronomy/abbreviations/r/Celestial_object (accessed September 27, 2026).
HarvardSmart Define 2018, astronomy, Smart Define, viewed 27 September, 2026, <http://smartdefine.org/astronomy/abbreviations/r/Celestial_object>.
MLASmart Define. "astronomy" 9 February 2018. Web. 27 September 2026. <http://smartdefine.org/astronomy/abbreviations/r/Celestial_object>