User manual BUSHNELL NORTHSTAR GOTO 78-8876

[. . . ] Lit. #: 98-0262/06-03 Instruction Manual 78-8876 76mm RefLEctor Congratulations on the purchase of your Bushnell Northstar Goto Telescope. Included with this product are several value added features such as a Moon Filter, 9V battery, CDROM, and Magnetic Compass. The moon filter should be screwed into the eyepiece when viewing the full moon to increase contrast of this extremely bright phase of the moon. The 9V battery is included as well as an interactive astronomy CDROM for your computer to aid you in your understanding of the night sky. [. . . ] At this point with a focused image in both scopes, you've passed the first obstacle. If you don't see an image after attempting to focus it in, you might consider aligning your finderscope again. Once you pass this step, you'll will enjoy the time spent ensuring a good alignment. Every object you center in the finderscope will be easily found in the main telescope tube, which is important for continuing your exploration of the night sky. 3. The low power eyepieces are perfect for viewing the full moon, planets, star clusters, nebulae, and even constellations. However, for more detail, try bumping up in magnification to higher power eyepieces on some of these objects. During calm and crisp nights, the light/dark separation line on the moon (called the "Terminator") is marvelous at high power. You can see mountains, ridges and craters jump out at you due to the highlights. Similarly, you can move up to higher magnifications on the planets and nebulae. Star clusters and individual stars are best viewed through the low power no matter what. 4. The recurring astronomical theater we call the night sky is an ever-changing billboard. In other words, the same movie does not play all the time. Rather, the positions of the stars change not only hourly as they seem to rise and set, but also throughout the year. As the earth orbits the sun our perspective on the stars changes on a yearly cycle about that orbit. The reason the sky seems to move daily just as the sun and the moon "move" across our sky is that the earth is rotating about its axis. As a result you may notice that after a few minutes or a few seconds depending on what power you are viewing at, the objects in your telescope will move. At higher magnifications especially, you will notice that the moon or Jupiter will "race" right out of the field of view. To compensate, just move your telescope to "track" it in the necessary path. 8. NORTHSTAR COMPUTER INTERFACE DIAGRAM 1. On/Off Button (On Northstar Base) Back Button Enter Button Scroll Up Button Scroll Down Button LCD Display "GO" Button Motorized Movement Buttons (4) Battery Door (On Northstar Base) 8. 5. BUTTON FUNCTIONS ALL BUTTONS ARE ILLUMINATED FOR NIGHTTIME USE. On/Off Button: The On/Off Button will turn the Northstar Computerized Star Locator on and off. This button flashes or strobes on and off during normal use. [. . . ] THIS IS NOT A CRITICAL STEP AND THE ALIGNMENT WILL BE REFINED AUTOMATICALLY AS WE PROGRESS. After four simple criteria that any consumer should know, the telescope now knows where over 20, 000 astronomical objects are in the night sky to a relative precision. With just two more steps, you will zero in on pinpoint accuracy. Now the telescope will lead you through a simple two star alignment process. [. . . ]