Meade LX850 User Manual - Page 42
Alternate Polar Alignments, One-Star Polar Alignment Default, Two-Star Polar Alignment, Align
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AdvanAcuetdoSAtuatro#St4a9r7IIHFAeNatDuBrOesX Alternate Polar Alignments If you would rather set up your telescope without using the One-Star alignment routine, Autostar II offers alternative alignment methods for equatorial mounting. During some of these procedures, you will (unlike the Automatic and Easy alignment procedures) manually place the telescope in the home position. Initialize Autostar II First, you need to initialize Autostar II. 1. Plug in the AC adapter to the control panel. 2. Verify both the RA and DEC clutches are tight. 3. Connect Autostar II to the HBX port of the control panel. 4. Flip the power switch of the RA control panel to the ON position. The Autostar II screen is activated and a copyright message displays briefly. 5. "Press 0 to Align or Mode for Menu" displays. Press Mode. 6. The telescope will seek the home position. The RA and DEC motors operate briefly and "Finding Home" displays. 7. "Align: One Star" displays. You are now ready to align your telescope using one of the alternate polar alignment procedures. One-Star Polar Alignment (Default) Please see page 22 thru 23 for detailed instructions on how to set-up your telescope and perform this alignment. Briefly, One-Star Polar Alignment procedure requires you to align first on Polaris using the manual controls to center that star. Autostar then selects and slews to a second star which you center using the handbox. Two-Star Polar Alignment AutoStar choses and slews to two bright star that it choses based on time and location. 1. Alignment Option Screen. "Align Automatic" displays. 2. Select Alignment. Press the Scroll keys until "Align Tw0 Star" displays. Press "Enter" to select. 3. Set the telescope in the german equatorial home position and press "Enter". 4. "Taking GPS Fix" will display followed by "Selecting Star" upon successful GPS fix. The telescope will then slew to the first of two star. 5. Autostar will beep when it has completed its slew. Center the first star using the hand controller. Press "Enter". 6. AutoStar will repeat the process with a second star. 7. AutoStar will then display how far the telescope's alignment is off the pole. Align on Home If Calibrate Home has been performed, power up your telescope and select this menu to return the previously calibrated home position. In other words, the telescope is fully aligned according to the setting that were stored in Autostar II's memory during the Calibrate Home procedure. See Calibrate Home, below, for more information. How to Drift Align LX850 (Northern Hemisphere) The LX850 with StarLock is specially equipped to perform an Automatic Drift Alignment. In the Autostar Setup menu, select "Drift Alignment" and the LX850 will guide you through a quick Automatic drift alignment procedure. This method is substantially quicker than the manual drift alignment method. Before performing an Automatic Drift Alignment you must perform either a One-Star, Two-Star or an Easy Polar alignment. During the Automatic Drift Alignment Procedure, LX850 will slew to a Southern star and Starlock will begin monitoring the stars' drift on its CCD chip. Autostar will then let the user know how many turns of the mounts' Azimuth Adjustment knob to make to improve the mounts' polar alignment. Next, the LX850 will slew to an Eastern star and StarLock will monitor its drift on its CCD chip. Again, the StarLock will suggest to the user the appropriate number of turns, this time using the mounts Latitude Adjustment knob, to achieve the optimal polar alignment. However, if you prefer to drift align the mount using the manual drift alignment procedure, see Appendix A, pg 49. 42