M35 and NGC 2158
         Star Clusters in the Winter Milky Way

M35 is the spangle of bluer stars towards the top and left. 
It is a cluster about 800pc distant. The smaller cluster to 
the lower right (NGC 2158) contains many more redder 
stars. It is older than M35 and about 6 times more distant.  
These photometric data will be used to support an 
astrometric calibration of Fine Guidance Sensor #3 aboard 
Hubble Space Telescope.

Fritz Benedict and David Chappell acquired these data at McDonald 
Observatory (October 21, 1995), using a 30" telescope and wide-field 
CCD camera. The picture is a combination of three exposures, each 
through a blue, green, or red filter. Randy Whited processed and 
combined the images to make the final color picture.