25
.
Save
Sky Object:
The NexStar stores celestial
objects
to its database by saving its right ascension and
declination in the sky.
This way the same object can be found each time the telescope is
aligned. Once a desired object is centered in the eyepiece, simply scroll to the "
Save
Save
Save
Save Sky
Sky
Sky
Sky
Obj"
Obj"
Obj"
Obj"
command and press ENTER. The display will ask you to enter a number between 1-9
to identify the object. Press ENTER again to save this object to the database.
Save Land Object
: The NexStar can also be used as a spotting scope on terrestrial objects. Fixed land objects
can be stored by saving their altitude and azimuth relative to the location of the telescope at
the time of observing. Since these objects are relative to the location of the telescope, they
are only valid for that exact location. To save land objects, once again center the desired
object in the eyepiece. Scroll down to the "
Save Land Obj
Save Land Obj
Save Land Obj
Save Land Obj
" command and press
ENTER. The display will ask you to enter a number between 1-9 to identify the object. Press
ENTER again to save this object to the database.
GoTo Sky Object:
To go to any of the user defined sky objects stored in the database, scroll down to "
GoTo
GoTo
GoTo
GoTo
Sky
Sky
Sky
Sky Obj
Obj
Obj
Obj
" and enter the number of the object you wish to select and press ENTER.
NexStar will automatically retrieve the RA and DEC and slew to the object.
GoTo Land Object:
To go to any of the user defined land objects stored in the database, scroll down to "
GoTo
GoTo
GoTo
GoTo
Land
Land
Land
Land Obj
Obj
Obj
Obj
" and enter the number of the object you wish to select and press ENTER.
NexStar will automatically retrieve the altitude and azimuth and slew to the object.
To replace the contents of any of the user defined objects, simply save a new object using one of the existing identification
numbers; NexStar will replace the previous user defined object with the current one.
Get RA/DEC
- Displays the right ascension and declination for the current position of the telescope.
Get Alt-Az
- Displays the relative altitude and azimuth for the current position of the telescope.
Goto R.A/ Dec
- Allows you to input a specific Right Ascension. and declination and slew to it.
Goto Alt-Az
- Allows you to enter a specific altitude and azimuth position and slew to it.
To store a set of coordinates (R.A./Dec) permanently into the NexStar database, save it as a
User Defined Object
as
described above.
U
U
t
t
i
i
l
l
i
i
t
t
y
y
F
F
e
e
a
a
t
t
u
u
r
r
e
e
s
s
Scrolling through the MENU options will also provide access to several advanced utility functions such as cord wrap and
anti-backlash compensation.
Cord Wrap
–
Cord wrap safeguards
against the telescope slewing more than 360º in azimuth and wrapping the power
cord around the base of the telescope. Cord wrap can be set for either Power Cord (on) or Batteries (off).
Anti-backlash
– All mechanical gears have a certain amount of backlash or play between the gears. This play is evident
by how long it takes for a star to move in the eyepiece when the hand control arrow buttons are pressed (especially when
changing directions). The NexStar's anti-backlash feature allows the user to compensate for backlash by inputting a value
which quickly rewinds the motors just enough to eliminate the play between gears. The amount of compensation needed
depends on the slewing rate selected; the slower the slewing rate the longer it will take for the star to appear to move in the
Helpful
Hint
