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Related Manuals for Orion Sirius EQ?G
Summary of Contents for Orion Sirius EQ?G
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Page 1: Equatorial Mount
Manual orion sirius EQ‑G ® ™ Equatorial Mount #9995 customer support (800)‑676‑1343 E‑mail: support@telescope.com Corporate Offices (831)‑763‑7000 89 Hangar Way, Watsonville, CA 95076 Providing Exceptional Consumer Optical Products Since 1975 IN 280 Rev. B 02/06... - Page 2 Tube ring mounting plate Mounting plate lock knobs Declination lock lever (not shown) Control panel Front opening Right ascension lock lever Right ascension setting circle Declination setting circle Counterweight shaft lock lever Counterweight lock knob Latitude scale Counterweight Latitude adjustment L-bolts Counterweight shaft Hand controller cable Center support shaft...
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Page 3: Table Of Contents
In the event that the mount needs to be shipped to another 1. Stand the tripod legs upright and spread the legs out as location, or returned to Orion for warranty repair, having the proper packaging will ensure that your mount will survive the far as they will go. -
Page 4: Attaching A Telescope
Orion sells a variety of telescope properly balanced. We will first balance the telescope with tube rings. -
Page 5: Setting Up And Using The Equatorial Mount
6. setting up and using the Equatorial Mount When you look at the night sky, you no doubt have noticed that the stars appear to move slowly from east to west over time. That apparent motion is caused by the Earth’s rotation (from west to east). - Page 6 To find Polaris in the sky, look north and locate the pattern of the Big Dipper (Figure 6). The two stars at the end of the “bowl” of the Big Dipper point right to Polaris. Eyepiece Alignment Focus Objective focus ring setscrew (3) lock ring lens...
- Page 7 Using the Polar Axis Finder Scope use the azimuth adjustment knobs. Once Polaris is properly positioned within the reticle, you are precisely polar aligned. The reticle of the polar axis finder scope for the Sirius EQ-G Retighten the knob underneath the equatorial mount. has a tiny star map printed on it that makes precise polar align- ment quick and easy.
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Page 8: The Sirius Eq-G Dual-Axis Hand Controller
Figure 1. Again, If you are using a portable battery like the Orion Dynamo, use you have to rotate the scope in right ascension so that the the supplied 12V DC power cable (male cigarette lighter plug counterweight shaft is positioned horizontally. - Page 9 front aperture of the instrument, or permanent eye dam- 1. Speed buttons age could result. Young children should use this telescope 2. Directional buttons only with adult supervision. 3. Set button Lunar rate tracking is used to track the Moon at its rate of The dual-axis hand controller is equipped with a red LED light apparent motion across the sky.
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Page 10: The Sirius Eq-G Goto Hand Controller
Hold the Fast button, then press motion control, there is a GoTo hand controller for the Sirius the Right directional button. EQ-G available from Orion. The features and functions of the • 1.25x sidereal rate: Hold the Fast button, then press GoTo hand controller are explained in the following section. - Page 11 Orion. object database without connecting to the telescope mount If you are using a portable battery like the Orion Dynamo, use (Figure 10). The power jack is also used when updating the firmware in the hand controller (see “Updating the GoTo Hand...
- Page 12 NGC, IC, M, Planet, and Object buttons: Allow direct access control of the Sirius EQ-G mount at almost any step in opera- tion. These controls are locked out when the mount is slewing to catalogs and databases of over 13,400 objects. to an object.
- Page 13 alignment hand controller will lose track of the mount’s position, and the alignment procedure will need to be performed again. Keep In order for the GoTo hand controller to accurately locate and both the R.A. and Dec. lock levers engaged. point to objects in the sky, it must first be aligned on known positions (stars).
- Page 14 the alignment procedure must be performed again. To do 3. Once the alignment star has been entered and alignment this, turn the mount’s power switch off, then on again. is complete, the hand controller will display “Alignment Successful”. Press ENTER to access the Main Menu. two‑star alignment tips for choosing alignment stars Two-star alignment requires only two alignment stars but may...
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Page 15: Object Catalog
improved. To improve pointing accuracy in another region of PLANET: This shortcut button takes you straight to the Planets the sky, perform the PAE function again, this time choosing a submenu in the hand controller’s database. Use the scroll but- bright star in the new region of interest. - Page 16 PEC Training: See Appendix B for information Auto Guide Speed: When using an autoguider, this sets the guiding speed to 1.125x, 1.25X, 1.5X, 1.75X, or 2X sidereal LCD/LED Tuning: Allows adjustments of the LCD charac- rate. ter contrast, the LCD backlighting, and the LED backlighting of the pushbuttons.
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Page 17: Auto Guiding
From version 3.0 and up, the GoTo hand controller’s firmware will automatically return to “Recall Object”. can be updated over the internet. Users can download firm- ware updates from Orion’s website www.OrionTelescopes. identifying an unknown object com. The GoTo hand controller has the ability to identify celestial System Requirements objects that are unknown to you. - Page 18 base, but the hardware version will not change with internet updates). Note: If the error message “Can not connect to a SynScan hand control” appears on your computer, check all cable con- nections. Also, try closing all other computer programs that might be attempting to use the COM port.
- Page 19 sirius EQ‑G Goto Hand controller Menu tree...
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Page 20: Specifications
9. specifications Alignment method: One-star alignment, two- star alignment, three-star alignment Mount: German equatorial Database: Complete M, NGC, and Tripod: Steel IC catalogs, 25 user- Weight: 30 lbs. defined objects Counterweight: 11 lbs. Total 13,436 objects Polar axis latitude adjustment: 10°... -
Page 21: Appendices
Note: The following appendices apply to the Sirius EQ-G 3. Look into the eyepiece. Move the telescope about the R.A. with GoTo hand controller only. axis using the R.A. direction buttons on the hand controller while carefully observing the movement of the star. appendix a: Enhancing the 4. - Page 22 8. Without moving the R.A. axis, adjust the azimuth control knobs (Figure 2) to orient Polaris in the center of the eye- piece field of view. Adjustment in Dec. axis using the hand controller may be necessary. 9. Loosen the R.A. lock knob and carefully rotate the tele- scope 180°...
- Page 23 appendix B: Periodic Error correction (PEc) Using the PEC functions requires an illuminated reticle eye- piece capable of producing at least 300X magnification when used with your telescope. For best results, the true field of view should not exceed 10 arcminutes. Periodic errors are inherent in almost all worm gears due to slight eccentricities and misalignments.
- Page 24 Note: Guiding actions are recorded even when the PEC train- ing is stopped midway. The PEC + sidereal tracking will not be accurate until a full cycle of the PEC Training is performed. The Sirius EQ-G will emit a “beep” sound and display “Record completed”...
- Page 25 appendix c: rs‑232 d. Negative Alt tracking: 80, 3, 17, 7, TrackRateHighByte, TrackRateLowByte, 0, 0 connection 4. The number 35 is returned from the hand controller. Sending a Slow-GoTo Command The Sirius EQ-G mount equipped with the GoTo hand control- ler are designed to receive commands sent from a computer’s 1.
- Page 28 Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076. If the product is not registered, proof of purchase (such as a copy of the original invoice) is required.
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