| Show | code | author ⇑ |
| Show | KOI | "Kepler Object of Interest" (transiting exoplanet candidate of Kepler mission. |
| Show | VSK | (additional Discoverer Designation - see VAS) |
| Show | AAQ | (Astronomical Association of Queensland) |
| Show | DEO | (Dearborn Observatory) |
| Show | STF | (F. Struve DD - Appendix list #1) |
| Show | HMO | (Hamburg Observatory) |
| Show | HBC | (Herbig Bell Catalog) |
| Show | H | (Herschel DD - list 1) |
| Show | AST | (HST FGS Astrometry Science Team) |
| Show | MKT | (Mark III Interferometer) |
| Show | NOI | (Navy Prototype/Precision Optical Interferometer) |
| Show | ENG | (Note: Some time after publication of the IDS, the designation for Engelmann was |
| Show | ENH | (Note: Sometime after publication of the IDS, the designation for Engelmann was |
| Show | STT | (O. Struve DD - Appendix list) |
| Show | PTI | (Palomar Testbed Interferometer) |
| Show | PTF | (Palomar Transient Factory) |
| Show | PKO | (Pulkova Observatory) |
| Show | SPR | (Sproul Observatory) |
| Show | ERO | (the EROS collaboration) |
| Show | TOR | (Torino Observatory) |
| Show | USN | (U.S. Naval Observatory) |
| Show | VVO | (Van Vleck Observatory) |
| Show | VAT | (Vatican Observatory) |
| Show | WFC | (Washington Fundamental Cat. - astrographs) |
| Show | WFD | (Washington Fundamental Cat. - transit instruments) |
| Show | WNO | (Washington Naval Observatory. See also Mkr2008) |
| Show | WSI | (Washington Speckle Interferometer) |
| Show | TMA | 2MASS Catalog |
| Show | AAE | = Academy of Academic Excellence |
| Show | ADC | = Adrian College |
| Show | AMA | = Advanced Math and Science Academy |
| Show | ATU | = Arkansas Tech University |
| Show | NAA | = Army and Navy Academy |
| Show | BC | = Bowdoin College |
| Show | BYI | = Brigham Young University Idaho |
| Show | CS | = Cambridge School |
| Show | CMC | = Colorado Mountain College |
| Show | CVS | = CVSO (CIDA Variability Survey Orion OB1.) See Briceno et al. 2019 |
| Show | DVC | = Davidson College |
| Show | ECE | = ELTHAM College of Education, Beaches, Florida |
| Show | BCO | = ELTHAM College of Education, Beaches, Florida |
| Show | EVC | = Evergreen State College |
| Show | FCS | = Falls Church High School |
| Show | FPH | = Francis Parker High School |
| Show | GPI | = Gemini Planet Imager |
| Show | JCD | = Jack C Davis Observatory, Carson City, NV |
| Show | KHS | = King Kekaulike High School |
| Show | KFC | = Kopernikus Foundation / Kopernikus School |
| Show | LCC | = Leeward Community College |
| Show | LDT | = Lowell Discovery Telescope |