951 abbreviations
Abbreviation Meaning
CWA (celestial object) Cepheid W Virginis A, a subclass of CW stars that that vary in brightness on timescales of less than 8 days
CWB (celestial object) Cepheid W Virginis B, a subclass of CW stars that vary in brightness on timescales greater than 8 days
CXBR (celestial object) Cosmic X-ray Background Radiation
CXO (catalog) Chandra X-ray Observation, a catalog based from the Chandra space telescope
DAO (organization) Dominion Astrophysical Observatory
DCEP (celestial object) Delta CEPhei, a class of Cepheids named after Delta Cephei, the archetype for the class
DDEB (celectial object) Double-lined eclipsing binary
DENIS (observing program/catalog) DEep Near Infrared Survey
DENIS-P (catalog) DEep Near Infrared Survey, Provisory designation [or also known as DNS].
DES (observing program) Dark Energy Survey
DES (observing program) Deep Ecliptic Survey
DIB (celestial object) Diffuse Interstellar Band, an absorption feature in stellar spectra with an interstellar origin
DIRBE (instrumentation) Diffuse InfraRed Background Experiment, a multiwavelength infrared detector used to map dust emission
DISR (instrumentation) Descent Imager/Spectral Radiometer, an instrument on the Huygens probe
DMR (instrumentation) Differential Microwave Radiometer, a microwave instrument that would map variations (or anisotropies) in the CMB
DN (celestial object) Dwarf Nova
DNS (celestial object) Double Neutron Star, another name for a binary neutron star system. [Caution: Do not confuse with DNS relating to DENIS - Deep Near Infrared Survey].
DPOSS (data) Digitized Palomar Observatory Sky Survey
DS (celestial object) Dwarf Star
DSCT Delta SCuTi, a class of pulsating variable stars named after Delta Scuti, the archetype for the class
DSN (communications network) Deep Space Network, a network of radio antennas used for communicating to spacecraft
DSS (data) Digitized Sky Survey
DWE (instrumentation) Doppler Wind Experiment, an instrument on the Huygens probe
E (celestial object) Eclipsing, a binary star system with variable brightness in which the stars eclipse each other
EA (celestial object) Eclipsing Algol, a class of eclipsing binary stars named after Algol, the archetype for the class
EAAE (organization) European Association for Astronomy Education
EAPSNET (organization) East-Asian Planet Search Network
EB (celestial object) Eclipsing Beta Lyrae, a class of eclipsing binary stars named after Beta Lyrae, the archetype for the class
EC (celestial object) Embedded Cluster, a star cluster that is partially or fully embedded in interstellar gas or dust
ECA (celestial object) Earth Crossing Asteroid
E-ELT (telescope) European Extremely Large Telescope
EGG (celestial object) Evaporating Gaseous Globule
EGGR (catalog) Eggen & Greenstein, a catalog of mostly white dwarfs
EGP (celestial object) Extrasolar Giant Planet
EGRET (telescope) Energetic Gamma Ray Experiment Telescope, another name for the Compton Gamma Ray Observatory
EHB (celestial object) Extreme Horizontal Branch, a type of hot, evolved star
EJASA (publication) Electronic Journal of the Astronomical Society of the Atlantic
EKBO (celestial object) Edgeworth-Kuiper Belt Object, an alternative name for Kuiper Belt Objects
ELIAS (observing program) European Large Area ISO Survey, a survey of high redshift galaxies performed with the Infrared Space Observatory (ISO)
ELT (telescope) Extremely Large Telescope
EMP (catalog) Ephemerides of Minor Planets
EMP (celestial object) Extremely Metal-Poor, a star with few elements other than hydrogen and helium
ENACS (observing program) ESO Nearby Abell Cluster Survey, a survey of galaxy clusters
ERO (celestial object) Extremely Red Object, a name applied to galaxies with red spectra
ESA (organization) European Space Agency
ESO (organization) European Southern Observatory
ESTEC (organization) European Space research and TEchnology Centre
ESTRACK (communications network) European Space TRACKing, a network of radio antennas used for communicating to spacecraft
EUV (astrophysics terminology) Extreme UltraViolet
EUVE (telescope) Extreme UltraViolet Explorer, an ultraviolet space telescope