iOptron 8401 manual APPENDIX D Celestial Coordinates, FIG.D1, Altitude, Azimuth

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APPENDIX D

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APPENDIX D

Celestial Coordinates

Celestial Altitude North Pole Azimuth

East

Zenith

Median of the location

North

Observer’s horizon

Nadir

Altitude

South

Azimuth

West

Celestial

FIG.D1 South Pole

FIG.D1

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Contents www . iOptron . com ManualGoToNovaTM 8401 Hand-Held Controller Page CONTENTS Page Chapter 0 Quick Start Reference Sky and Telescope The Hubble SiteUseful Links http//hubblesite.orgA GPS module makes life a lot easier. It automatically sets the time and location for you 0.2 Getting StartedSet Local Time 2007-06-18 Daylight Time saving√ What’s Next? Chapter.1 Set Up And Alignment 1.0 Basic Symbols1.1 Set Up Appendix1.2.2 Two-Star Align Chapter. 2 Select And Slew NEVER LOOK DIRECTLY AT THE SUN WITH THE NAKED EYES OR WITHYou can define and save new celestial objects in the database 2.1 Planets, sun, moon2.5 Stars 2.5.1 Named Stars Contains 191 stars 2.5.2 Constellations 2.5.4 Variable Stars2.5.5 SAO Bright Stars 2.6 Constellations Contains 88 constellations 2.7 User ObjectsChapter. 3 Other Functions 3.4 Set up tracking Set up tracking speed 3.5 User objectsCheck Appendix A for complete menu structures 3.1 Sync To TargetEquatorial Mode FIG.4Chapter. 4 How to Observe Use slower speed for fine tuning4.2 Observing using arrow keys People usually use alt-zi mode to observe land objects4.4 Tracking APPENDIX A MENU STRUCTURE APPENDIX B Messier Catalog o M44 Praesepe, the Beehive Cluster open clustero M51 The Whirlpool Galaxy spiral galaxy o M63 Sunflower galaxy spiral galaxyo M57 The Ring Nebula planetary nebula o M42 The Great Orion Nebula diffuse nebulao M43 part of the Orion Nebula de Mairans Nebula diffuse nebula o M76 The Little Dumbell, Cork, or Butterfly planetary nebulao M6 The Butterfly Cluster open cluster o M7 Ptolemys Cluster open clustero M11 The Wild Duck Cluster open cluster o M1 The Crab Nebula supernova remnantAPPENDIX C Modern Constellationsconstellation genitiveCanis Minoris 1690, Firmamentum Sobiescianum, Hevelius Lynx Microscopium1624, Bartsch MuscaPisces Piscis AustrinusPuppis PyxisAustrale VolansAPPENDIX D Celestial Coordinates FIG.D1Altitude Azimuthδ, declination FIG.D2t, hour angle FIG. D3 δ, declination α, right ascensionCelestial sphere is an imaginary sphere of infinite radius You need two numbers to define a position on the celestial spherePage Appendix E SPECIFICATIONS GoToNovaTM 8401 SpecificationsAppendix F Products ListItem # ProductIOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY
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