(designator, mission-based designator, catalog-based designator)
(astronomical object designators based on name of survey)
Astronomical objects are often designated by a catalog indicator
(an abbreviation) followed either by a number, sometimes indicating the
order of discovery, or by a J designator indicating position within the
Each survey, or discovery mission/project in effect produces
for which these indicators of its discovered objects
reveal the mission that found them.
See examples in the
Extra-solar planet designations are generally are built
on the star's designation, often in this form.
Final lower-case letters, b, c, etc., indicates planets.
Multi-star systems similarly use a star designation with
a final upper-case letter, A, B, etc., to indicate which star.
Referenced by pages:
Arecibo General Catalog (AGC)
Herschel Double Star Catalog (H)
Lowell Proper Motion Survey (G)
rare designator prefixes
SuperCOSMOS Sky Survey (SSS)
Taurus Molecular Cloud 1 (TMC-1)
Two Micron All-sky Survey (2MASS)