background image

 

 

Lending Telescope Collection 

Dobsonian Telescope Instruction Manual 

 

 

 

 

Warning

:  Never look directly at the Sun through any telescope or finder scope – even for an instant 

– as permanent eye damage could result.  Do not point the telescope at the Sun, as parts will melt.  
Children should use this telescope only with adult supervision. 

Summary of Contents for Dobsonian

Page 1: ...Manual Warning Never look directly at the Sun through any telescope or finder scope even for an instant as permanent eye damage could result Do not point the telescope at the Sun as parts will melt Ch...

Page 2: ...imber base mount Special care needs to be taken while transporting the telescope Please plan your transport of the telescope to prevent it moving around and being damaged The optic tube is quite heavy...

Page 3: ...arm up and dry out If the eyepiece fogs up wrap your hands around it for a few moments As it warms up the fog should disappear DO NOT wipe the lens with a tissue or cloth as it has special coatings on...

Page 4: ...lease ensure it s adjusted to move smoothly but not be loose or unstable Viewing with eyeglasses If you wear eyeglasses you may be able to keep them on while you observe if the eyepieces have enough e...

Page 5: ...images match up The finder scope alignment needs to be checked before every observing session Focusing the Finder scope If when looking through the finder scope the images appear somewhat out of focus...

Page 6: ...ve warm air currents rising from them which distorts the image seen in the eyepiece You should also not observe out an open window from indoors for the same reason The best options would be out of tow...

Page 7: ...nearby porch and streetlights and car headlights will spoil your night vision Tracking Celestial Objects The Earth is constantly rotating about its polar axis completing one full rotation every 24 ho...

Page 8: ...mmended for small and bright objects like planets and double stars The moon also takes higher magnifications as well Deep sky objects however typically look better at medium or low magnifications This...

Page 9: ...our telescope Lunar craters Marias and even mountain ranges can all be clearly seen from an average distance of 350 000kms away With its ever changing phases you ll get a new view of the Moon every ni...

Page 10: ...ost luminous object in the sky excluding the Sun and the Moon It is so bright that sometimes it is visible to the naked eye during full daylight Ironically Venus appears as thin as a crescent not a fu...

Page 11: ...pollution Take plenty of time to let your eyes adjust to the darkness Do not expect these objects to appear like the photographs you see in books and magazines most will look like dim gray smudges...

Reviews: