First Edition and Supplements
In 1957 German astronomer Wilhelm Gliese published his first star catalogue of nearly one thousand stars located within 20 parsecs (65 ly) of Earth, listing their known properties and ordered by right ascension. Items from the first catalogue were designated GL NNN and the stars were numbered from 1-915.
He published a significant update to his original catalogue as the Catalogue of Nearby Stars in 1969, extending the range out to 22 parsecs (72 ly). The update extended the list to 1,529 stars, and the stars were then designated Gl NNN.NA and numbered from 1.0 to 915.0. New stars not in the original Gliese catalogue were given fractional numbers to slot them 'between' existing Gliese stars to retain the existing right ascension order.
A supplement to the catalogue, published in 1970 by Richard van der Riet Woolley and associates, extended the range out to 25 parsecs (82 ly). This supplement added catalogue numbers in the range 9001–9850 using the now deprecated Wo prefix. Stars in this range now also use the GJ prefix.
Read more about this topic: Gliese Catalogue Of Nearby Stars
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