the NGC and IC catalogs, and correcting many bugs and errors.  If there are errors in 
converting his data into the internal Gemini databases, they are caused by the system's 
developer. 
5.3.2.4  Messier (Messier Objects Catalog) 
There are 110 Messier objects stored in this catalog, among which are nebulae, galaxies 
and clusters. To select one of them, type in its Messier number from M1 to M110 and 
then press the RA+ button.  The object's designation, hour angle and elevation will be 
displayed, indicating that it has been selected. 
5.3.2.5  NGC (New General Catalog) 
There are 8290 objects stored in this catalog, among which are nebulae, galaxies and 
clusters.  To select one of them, type in its catalog number and press the RA+ button.  
The object's designation, hour angle and elevation will be displayed, indicating that it has 
been selected. 
5.3.2.6  IC (Index Catalog) 
There are 5437 objects stored in this catalog, among which are nebulae, galaxies and 
clusters.  To select one of them, type in its catalog number and press the RA+ button.  
The object's designation, hour angle and elevation will be displayed, indicating that it has 
been selected. 
Both NGC and IC catalogs include some objects identified by an extension letter after the 
numeric identification. For example, NGC 6246 and 6246A are both in the NGC catalog.   
5.3.2.7  Sh2 (Sharpless 2 Catalog) 
There are 313 HII objects of the Sharpless 2 catalog stored in Gemini.  To select one of 
them, type in its catalog number and press the RA+ button.  The object's designation, 
hour angle and elevation will be displayed, indicating that it has been selected. 
5.3.2.8  Solar System (Solar System Catalog) 
There are 10 objects (8 planets, the Sun and the Moon) stored in this catalog.  To select 
one of them, scroll through the list until you see the one desired, and press the RA+ 
button.  The object's designation, hour angle and elevation will be displayed, indicating 
that it has been selected.   
WARNING
: Never point the telescope at the Sun without proper filtration!  Doing so 
can cause severe damage to your eyes and your equipment. 
5.3.2.9  Bright Stars (Bright Star Catalog) 
There are 169 Bright Stars with their common names stored in this catalog and arranged 
alphabetically.  To select one of them, scroll through the alphabet until you see the first 
letter of the star' s common name.  Press RA+ to display the list of all stars that begin 
with that letter.  Scroll through the list until you see the star desired, and press the RA+ 
Gemini Users Manual 
4  
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