In 1992 it was named the Helen Sawyer Hogg Telescope ( HSHT ) in recognition of Hogg 's work on measuring the distance to variable stars in globular clusters .
The telescope was equipped for spectroscopy , photometry , and photography ; CCD 's were installed later .
In 1992 CCD was named the Helen Sawyer Hogg Telescope ( HSHT ) in recognition of Hogg 's work on measuring the distance to variable stars in globular clusters .
The telescope was equipped for spectroscopy , photometry , and photography ; CCD 's were installed later .