iOptron 8401 manual Tracking

Page 17
4.4Tracking

TIP:

A full moon is not the best time to watch the Moon. There is too much glare and not enough shadow for details.

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There is a lot to explore on the surface of the Moon such as craters, mountain ranges, fault lines, etc. During a full moon, however, no shadows can be seen on the Moon’s surface and it becomes too bright for any details to be seen. The best time to observe the Moon is during its crescent or half phase.

A neutral density Moon filter is recommended when observing the Moon. This filter cuts down on the bright glare and enhances contrast. You will be amazed by the dramatic difference.

4.4Tracking

The tracking function is used to counteract the rotation of the earth. When the telescope is in tracking mode, the celestial object will not drift away from your eye piece field. This function is essential for astrophotography.

When you switch to “Cele” mode the system is automatically in tracking mode. When you switch back to “Land” mode the tracking stops.

A user can set up tracking in the main menu by selecting “Set up tracking”. Then the user can select “sidereal speed”, “Solar speed”, “Lunar speed”, or user can define a speed using “User defined speed”.

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Contents GoToNovaTM 8401 Hand-Held Controller Manualwww . iOptron . com Page CONTENTS Page Chapter 0 Quick Start Reference The Hubble Site Sky and TelescopeUseful Links http//hubblesite.org0.2 Getting Started A GPS module makes life a lot easier. It automatically sets the time and location for youSet Local Time 2007-06-18 Daylight Time saving√ What’s Next? 1.0 Basic Symbols Chapter.1 Set Up And Alignment1.1 Set Up Appendix1.2.2 Two-Star Align NEVER LOOK DIRECTLY AT THE SUN WITH THE NAKED EYES OR WITH Chapter. 2 Select And SlewYou can define and save new celestial objects in the database 2.1 Planets, sun, moon2.5.4 Variable Stars 2.5 Stars 2.5.1 Named Stars Contains 191 stars 2.5.2 Constellations2.5.5 SAO Bright Stars 2.6 Constellations Contains 88 constellations 2.7 User Objects3.4 Set up tracking Set up tracking speed 3.5 User objects Chapter. 3 Other FunctionsCheck Appendix A for complete menu structures 3.1 Sync To TargetFIG.4 Equatorial ModeUse slower speed for fine tuning Chapter. 4 How to Observe4.2 Observing using arrow keys People usually use alt-zi mode to observe land objects4.4 Tracking APPENDIX A MENU STRUCTURE o M44 Praesepe, the Beehive Cluster open cluster APPENDIX B Messier Catalogo M51 The Whirlpool Galaxy spiral galaxy o M63 Sunflower galaxy spiral galaxyo M42 The Great Orion Nebula diffuse nebula o M57 The Ring Nebula planetary nebulao M43 part of the Orion Nebula de Mairans Nebula diffuse nebula o M76 The Little Dumbell, Cork, or Butterfly planetary nebulao M7 Ptolemys Cluster open cluster o M6 The Butterfly Cluster open clustero M11 The Wild Duck Cluster open cluster o M1 The Crab Nebula supernova remnantModern Constellations APPENDIX Cconstellation genitiveCanis Minoris 1690, Firmamentum Sobiescianum, Hevelius Microscopium Lynx1624, Bartsch MuscaPiscis Austrinus PiscesPuppis PyxisVolans AustraleFIG.D1 APPENDIX D Celestial CoordinatesAltitude Azimutht, hour angle FIG.D2δ, declination δ, declination α, right ascension FIG. D3You need two numbers to define a position on the celestial sphere Celestial sphere is an imaginary sphere of infinite radiusPage GoToNovaTM 8401 Specifications Appendix E SPECIFICATIONSProducts List Appendix FItem # ProductIOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY
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