18
the number keys to change the slewing
speed. Simply press a number while
slewing to change the slew speed.
6.2. Slew to an Object
Press the MENU button. From the main
menu, select “Select and Slew.” Select an
object that you would like to observe and
press the ENTER key.
The GOTONOVA
TM
8401 hand controller
has a database of about 130,000 objects.
Use the ► or ◄ buttons to move the cursor
and the ▼▲ buttons to change the
individual number. The check mark (√)
indicates the object is above the horizon,
and a cross mark (X) means it is below the
horizon. In some catalogs those stars below
the horizon will not display on the hand
controller.
6.2.1. Planets, Sun, Moon
There are 10 objects in the Solar system
catalog.
6.2.2. Deep sky objects
This menu includes objects outside our
Solar system such as galaxies, star
clusters, quasars, and nebulae.
• Named Deepsky Objects: consists of 60
deep sky objects with their common
names. A list of named deep sky objects
is attached in Appendix C.
• Messier Catalog: consists of all 110
objects.
• NGC IC Catalog: consists of 7840
objects in NGC catalog and 5386 objects
in IC catalog. To select an object from
NGC or IC catalog, move the cursor to
NGC, using▲ or ▼ button to toggle
between NGC and IC. Then move the
cursor to numerical position and use the
number button to select the object.
• UGC Catalog: consists of 12939
objects.
• MCG Catalog: consists of 29004
objects. They are listed numerically from
MCG+15 to MCG-05.
• Caldwell Catalog: consists of 109
objects.
• Abell Catalog: consists of 2712 objects.
• Herschel Catalog: consists of 400
objects.
6.2.3. Comets
This catalog contains up to 190 comets.
This database is customer upgradeable.
6.2.4. Asteroids
This catalog contains up to 4096 asteroids.
This database is customer upgradeable.
6.2.5. Stars:
• Named Stars: consists of 191 stars with
their common names. They are listed
alphabetically. A list is attached in
Appendix C.
• Double Stars: consists of 40 double
stars. A list is attached in Appendix C.
• GCVS Variable Stars: consists of 38624
GCVS variable stars. They are listed
numerically.
• SAO Catalog: consists of 26584 SAO
catalog objects. They are listed
numerically.
6.2.6. Constellations
This catalog consists of 88 modern
constellations with their names. They are
listed alphabetically. A list is attached in
Appendix C.
6.2.7. User Objects
This catalog can consist up to 256 user
predefined objects. These objects need to
be entered before they can be selected for
slewing.