Celestron CR-150 HD Image Orientation, YourFirstLook, DaytimeObserving, Children Are Present

Image Orientation

It should be noted that the image orientation will change depending on the viewing configuration. When using the star diagonal, the image is right-side-up, but reversed from left-to-right. If inserting the eyepiece into the accessory adapter (i.e., without the star diagonal), the image is inverted (upside down and reversed from left-to-right). This holds true for the 9x50 finder as well as the telescope. For correct orientation through the telescope, which is important primarily for terrestrial observing, use the optional45°erectimagediagonal 1-1/4"(#94112-A).

Actual image orientation as seen

with the unaided eye

Reversed from left to right, as viewed with a Star Diagonal

Figure 4-3

Inverted image, as viewed with the eyepiece directly in telescope

YourFirstLook		With the telescope fully assembled and all the accessories attached you are ready
		for your first look. Your first look should be done in the daytime when it will be
		easier to locate the locking clamps and adjustment handles. This will help to
		familiarize you with your telescope, thus making it easier to use at night.
	DaytimeObserving
		Your Celestron CR-150 HD telescope works well as a terrestrial spotting scope.
		When not used to examine objects in the night sky, it can be used to study objects
		here on Earth.
WARNING !	NEVER POINT YOUR TELESCOPE AT THE SUN UNLESS
	YOU HAVE THE PROPER SOLAR FILTER. PERMANENT
	AND IRREVERSIBLE EYE DAMAGE MAY RESULT AS
	WELL AS DAMAGE TO YOUR TELESCOPE. ALSO, NEVER
	LEAVE YOUR TELESCOPE UNATTENDED DURING A
	DAYTIME OBSERVING SESSION, ESPECIALLY WHEN
	CHILDREN ARE PRESENT.
	1.		Begin by finding a distant object that is fairly bright.
	2.		Insert the eyepiece (one with a large focal length) into the telescope.
	3.		Release the R.A. and DEC clamps and point the telescope at the object you
			selected.
	4.		Locate the object in your finder and lock the R.A. and DEC clamps.
	5.		Use the slow motion knobs to center the object in the field of the finder.
	6.		Once centered, look through the main optics and the object will be there (if you
			aligned the finder first).

24 • Telescope Basics