Date of Award

Spring 1999

Document Type

Restricted Thesis

Terms of Use

© 1999 Katherine J. Hall. All rights reserved. Access to this work is restricted to users within the Swarthmore College network and may only be used for non-commercial, educational, and research purposes. Sharing with users outside of the Swarthmore College network is expressly prohibited. For all other uses, including reproduction and distribution, please contact the copyright holder.

Degree Name

Bachelor of Arts


Physics & Astronomy Department

First Advisor

John E. Gaustad


Images from the robotic Hex, southern sky survey, now underway at Cerro Tololo Inter-American Observatory, are analyzed and the survey is quantified in terms of two past catalogues, one of planetary nebulae and one of HII regions. Comparisons are made between brightness of objects measured on the survey's images and brightness or brightness class reported in each of the two catalogues. Also, comparisons are made between radial extent of objects as measured on the survey's images and reported size of the objects in the catalogues. Our survey can observe fainter parts of objects than have previously been catalogued.