The H.S. Mendenhall Observatory

The 24-inch Telescope Gallery

 

First Image

The first test image, which shows the spiral galaxy Messier 81, about 11 million light-years away.

 

First Light Image from the 24-inch Telescope

 

 

Globular Star Clusters

The three globular star clusters below were imaged with a luminance (white light) filter.

 

Messier 3

Messier 3

 

Messier 5

Messier 5

 

Messier 13

Messier 13

 

 

Planetary Nebula Messier 27

The set of images below of planetary nebula Messier 27 illustrate how a color astrophoto is made. Four monochromatic images through red, green, blue, and luminance filters are first obtained. They are then combined on a computer to create the color composite image.

 

Red Light

M27-R

 

Green Light

M27-G

 

Blue Light

M27-B

 

White Light

M27-L

 

Composite of the Four Preceding Images

M27-L-RGB