I purchased a tasco 302911 reflector telescope from a second hand store,i was able to locate jupiter but when i tried to focus with the 4mm lens i wasnt able to get a clear image, i could see the planet as a white dot but no detail.ive had other telescopes with better detail but thought this one was supposed to be a better scope am not truley familiar with the reflector type have always had the refracter type(long skinny barrell,look through the end)please help
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Originally around $150 new. This is a wide field, low power scope. Good for the moon fair to good for planets and fair for deep sky objects (Orion Nebula and some clusters will be fine) Expect to see Jupiter and its moons but unless it is a perfect night, no detail of Jupiter's clouds. Should see the rings of Saturn also. The scope comes with Tasco eyepieces, which are close to junk but at least they are in 1.25 in format. You can buy better eyepieces and they will work with any upgraded scopes, if you catch the astronomy bug. The optics are fair, Tasco is not known for good optics. I would study up on collimating your scope, I guarantee you will have to adjust it.
What Tasco do you own is it a refractor or reflector? Does it have a lens in front -- then it's a refractor; or mirrors, then it's a reflector.
On a refractor the eyepieces go in the back of the tube, sometimes you also have a diagonal which goes into the scope first and then the eyepiece goes into the diagonal. The diagonal is simply an L shaped device with a mirror inside that makes it easier to look through the scope when it is pointed UP at an angle.
On a reflector the focuser is on the FRONT side of the tube, and the eyepiece goes into the focuser.
Take the scope outside during the day time and practice focusing on a distant object. Put the eyepiece with the largest number written on it into the focuser or into the diagonal. This is your LOWEST magnification.
Practice focusing --- until you get used to how it is done. Turn the focuser knob to the left slowly-- if nothing comes to focus then try turning it to the right. It may take several full turns to come to focus.
At night the moon should be your first target.
Read my TIPS on my profile page.
ABOUT NOT FITTING: eyepieces come in 3 sizes, .975, 1.25, and 2 inch sizes. Measure the hole and then measure the eyepiece-- it may be that you have the wrong size eyepieces for that scope. The correct size can be purchased on line from many retailers. Here is one telescope retailer that sells eyepieces and other accessories:
None located on the internet. However this is a simple reflector style telescope.
Meade maintains a web site with all of their manuals. Look under 4.5 Inch REFLECTOR for one that is similar to your telescope. They all assemble and are used in a similar fashion. Read my Tips on my profile page.
You will not find a manual for that small REFLECTOR style telescope. However the picture above-- that you show in your question shows the telescope mounted BACKWARDS actually pointed toward the ground!
Apparently FIXYA also does not know how to set up a reflector style telescope. The eyepiece and focuser end is on the UP end of the telescope with the mirror on the bottom end of the telescope.
Here is a manual for a MEADE brand telescope probably very similar to your telescope.
You will not find a manual for that telescope. However Meade maintains a web site with all of their manuals. Look under REFRACTOR or REFLECTOR for one that is similar to your telescope. They all go together in a similar fashion.