User`s guide

174 Starry Night User’s Guide
Image Editor Controls: The celestial
sphere
is an imaginary globe that encloses
Earth. We can imagine that all the stars,
planets, and other celestial objects are
painted onto the inner surface of this
sphere. Adding an image to Starry Night
means painting a new image onto the inner
surface of this sphere. The following
Image Editor controls affect the placement
of your image on the celestial sphere:
Size: Increases or decreases the
area that your image occupies on
the celestial sphere.
Height: Increases or decreases the
vertical extent of your image on
the celestial sphere, while leaving
the horizontal extent unchanged.
Width: Increases or decreases the
horizontal extent of your image
on the celestial sphere, while
leaving the vertical extent unchanged.
Rotate: Rotates the position of
your image on the celestial
sphere in a clockwise or counter-
clockwise direction.
Flip: Flips your image
horizontally or vertically relative
to the background stars.
Slide: Slides the position of
your image on the celestial
sphere horizontally or
vertically.
Zoom: This control does not
affect the placement of your
image on the celestial sphere, it
simply zooms your view in or out. If you
used the Image Editor to increase or
decrease the area of your image, you may
need to use these zoom buttons to see the
full extent of your image.
Accessing Your Images: All images that
you add go into a new database called
“User Images”. You control this database
by using the “User Images” options in the
Deep Space layer of the Options pane. As
with all other databases, you can turn the
database on/off, or search for specific
objects in the database.
Note: Images that you have added are
mapped onto a section of the celestial
sphere, not to a particular object. For
example, assume you have added a new
image that shows an NGC object. You
would turn this image on/off by using the
“User Images” options in the
Options pane, not the “NGC-IC” options.
Editing Your Images: You can modify any
of your custom images at any time. Locate
the image onscreen and right-click
(Ctrl-click on the Mac) on the image to
open its contextual menu. Choose
Edit Image to open the Image Editor. You
can adjust the existing image, or press the
Clear Image button to add a completely
new image.
Tip: It is easier to open an image’s
contextual menu if you turn off every
database in the Options pane except
“User Images”. Otherwise, you may find
Starry Night opening the contextual menu
for an object, instead of the menu for its
image.