Question about Galileo 720mm x 80mm Refractor Telescope

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Crosshairs over planet

When focusing in on object, telescope crosshairs are reflected on top of the object. This doesn't happen on a big object (moon) but are seen right over venus

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  • Anonymous Feb 18, 2009

    I have the same problem

  • Bob Peloquin May 11, 2010

    This is unusual for a refactor. It sounds like diffraction spikes on a reflector telescope caused by the secondarey mirror spider assembly, but a refractor should not have this.



    Are you using the stock eyepieces or hve you possibly changed to a guide type eyepiece with crosshairs?

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  • 13 Answers

Put in an eyepiece that doesn't have cross hairs, those are for finding only.

Posted on Jul 22, 2009

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1 Answer

I cannot see anything through the lens of my brand new 6 SE. What should I do?


During the day, point the telescope at a part of the landscape about 100 yards away. Use the lowest power eyepiece (highest number) in the focal tube. Center the landscape object in the telescope. Align the finder scope so that it points exactly where the main telescope is. At night, leave the scope out to reach thermal equilibrium (about an hour). Point the finder at the moon. The moon should be in the main scope also. Practice finding the moon before you start on the planets Once you are comfortable with the moon and planets, you can go for the deep sky objects

Dec 28, 2012 | Celestron NexStar 6 SE (354 x 55.88mm)...

1 Answer

I got an inphase telescope for a present secondhand. There are no instructions and I have never used one before, could you advise me please?


The bit of information I can find on this model tells me this scope is probably a Newtonian reflector Telescope.


The following is the most basic steps I can think of to get you in the driver's seat.. by doing a few simple internet searches in regards to astronomy.. you should be able to greatly expand on my few simple tips.


The primary mirror is at the bottom.. the heavy end.. of the tube... if you can see screws holding it in place... resist the urge to "tighten them up".. doing so will probably misalign the mirror.


You should have a small finder scope mounted on the side


Near the finder scope will be the eyepiece/holder with focuser.. all this should be closer to the skyward end of the scope than the earth end of the scope.. so to speak.


As you peer into the eyepiece you are basically looking at a right angle to the primary mirror into a smaller secondary mirror which in turn is reflecting the image of the primary (bottom) mirror. By adding various eyepieces with different magnification factors you are enlarging that image.


Most folks don't realize how bad a typical looking glass mirror is..but if you look really close at the old bathroom mirror.. you will see how much the glass distorts the image reflected on the silver coating.


Which is why your telescopes mirror has a top coating of silver on the glass.. not behind the glass..


To get started..

I suggest doing all of the following things during daylight hours or near dusk on a clear nite so you can see what you are doing.. to get familiar with the scope.


Using the lowest powered eyepiece you have.. once inserted into the focuser .. aim the telescope at an object a few hundred yards away and attempt to focus..


Remember that everything will be upside down.. looking at the moon, planets and stars..it won't really matter.


Once you have managed to point and focus easily.. you can align your finder scope.. again.. using a fixed terrestrial target


Aim the scope at this object.. the further away the object is.. the better.. get the object as close to center as possible.. slightly increase the magnification if you have a stronger eyepiece.. if not.. proceed.


Fix the scopes position by tightening any set screws on the mount.


Check the position of the spotted object again ..make adjustments until you have the object centered.


Look through the finder scope.. adjust the mount screws until the object is centered in the crosshairs..


Check all settings.. your done.


Start out looking at the brightest objects in the nite sky using the lowest magnification..


Once you become familiar with how to find/spot and focus on simple bright objects.. like the moon and perhaps Jupiter... you can read various articles at websites such as Sky and Telescope to learn how to properly align your scope with the polar (north) star.. of course this depends on the type of mount.. and drive if any... Or simply enjoy point and look backyard astronomy.. some of my most fun star gazing has been using bincoulars.. a star chart.. and a lounge chair.


Remember to keep it simple at first.. be ready to dress warm.. and take your time.. your eyes will need almost 30 minutes to really adjust to nite vision..in this cooler weather it helps to let the scope cool down for a while outside (covered) to keep things aligned properly.. of course the darker it is the better the view..


Even inexpensive scopes can give a lot of satisfaction to a point... especially if it's your first..


Good luck!


Washoe

Jan 30, 2011 | Telescopes

1 Answer

How to align pointer? which lens tu use? no zoom?


During the daytime point the scope at a distant object like the top of a telephone pole. Without moving the scope adjust the small finder scope crosshairs so they point to the same spot.

Put the eyepiece with the largest number written on it into the diagonal. This is your lowest magnification. Practice focusing on a distant object using this low power eyepiece.

Dec 29, 2010 | Konustart 700 (120 x 60mm) Telescope

1 Answer

How to use


Put the eyepiece with the LARGEST number written on it into the telescope. Go outside during the day time and practice focusing on a distant object.

This is your LOWEST magnification. Then try other higher power eyepieces. While you are out there focused on a distant object. Line up the small finder scope on that object without moving the telescope. Use the small thumb screws on the finder scope to put the "X" crosshairs on the same object as you see in the eyepiece.

Dec 18, 2009 | Meade Telescopes

1 Answer

When i look in the finderscope the objects r upside down but when i look in the big one theres nothing,even when i try and zoom in and out thers nothing moving


Some finders show things upside down. There is no up or down in outer space.

During the daytime focus on an object like the top of a telephone pole a good distance away.

Without moving the telescope adjust the finder scope so that the "crosshairs" in the finder are centered on the same object as the main tube. Most astronomical telescopes show upside down and reversed images.

Nov 04, 2009 | Meade (r) TeleStar Manual 60mm Refractor...

1 Answer

I see a big X where I should see planets and stars. How do I get rid of it ASAP??


You are NOT focusing the telescope properly. Put the eyepiece with the largest number written on it into the telescope and go outside during the daytime and practice focusing on a distant object.

Sep 27, 2009 | Galileo Telescopes

1 Answer

How to focus in on an object


First use the eyepiece with the LARGEST number written on it. This is your lowest magnification.

Then center the object in the telescope eyepiece, and without moving the telescope CENTER the crosshairs or the red finder dot on the target.

Jul 07, 2009 | Galileo New Age 800x80 Telescope

1 Answer

Setting up my reflector telescope(beginner)


During the daytime focus the telescope on a distant object-- center the object in the eyepiece. Without moving the telescope adjust the finder scope by loosening and tightening the set-crews until the crosshairs are centered on the same object in the telescope eyepiece.

Dec 28, 2008 | Telescopes

3 Answers

78-8831


If you dont have any experience with telescopes, I suggest trying it first in daytime, since daytime objects are much better for getting experience. Also, start with the lowest power eyepiece, the one with the largest lens. Start by looking towards something pretty big, like a car or a house, and it needs to be some distance away to even have a chance to get a focus. If your target is closer than about 1/4 mile, you should add the right angle eyepiece attachment to allow you to focus in on closer objects.

When you are finally set up with the low power eyepiece, and have a good big target in the daytime, start looking thru the telescope while turning the knob thru the entire range. At some point of knob turning, you should see some image appear in the eyepiece..Turn the knob slowly to focus it clearly.

And this is for the shaky tripod. If you can hang a book under the middle of the tripod, the added weight will help stabilize the telescope, and you should be able to see a little better, without so much motion at the slightest touch.

After you look at the first car or house, you can see how careful you have to be to use the telescope, and you can start to look at other objects. When you move to the higher power eyepieces, it will be even more critical in getting it both aimed and focused. If its off by just a few degrees, you wont see what you are looking for.

When you start nightime viewing, start with the largest object in the sky, the moon. Its the same process as daytime, except the eyepiece mechanism will have to be adjusted a little closer to the main body of the telescope.

Viewing planets and stars will be the ultimate test. Stars and planets are harder to see, since they are small, and hard to see unless they are in focus. When you can see those views, you have passed the telescope test. Its a matter of careful aim, and having the telescope focus set close to the point where you can see objects that are VERY FAR AWAY. If you are able to focus on the moon, you will be fairly close to being able to focus on the planets. The hardest part is actually getting the planet in the view of the telescope, in other words, aiming it.

The last item that can really mess up the view is a fogged up lens. Usually this happens in the summer when the scope has been in the air-conditioned room, and then it fogs up when taken outside. The solution for this is to let the telescope sit outside for 20 minutes, so the fogged lenses can clear. By the way, the same fogging may happen when you bring the telescope inside during the winter.

I hope this helps you eventually get a clear view of some amazing views in the sky. Your final exam is to take a look at the moon, the rings of Saturn, and the moons of Jupiter, some time in the near future. Have Fun!

Dec 26, 2007 | Bushnell NorthStar 78-8831 (525 x 76mm)...

1 Answer

Cannot see an image through the lens


I bought one of these telescopes, and had trouble at first, but finally got some decent results. If you dont have any experience with telescopes, I suggest trying it first in daytime, since daytime objects are much better for getting experience. Also, start with the lowest power eyepiece, the 12mm 50x, the one with the largest lens. Start by looking towards something pretty big, like a car or a house, and it needs to be some distance away to even have a chance to get a focus. If your target is closer than about 1/4 mile, you should add the right angle eyepiece attachment to allow you to focus in on closer objects.

When you are finally set up with the low power eyepiece, and have a good big target in the daytime, start looking thru the telescope while turning the knob thru the entire range. At some point of knob turning, you should see some image appear in the eyepiece..Turn the knob slowly to focus it clearly.

And this is for the shaky tripod. If you can hang a book under the middle of the tripod, the added weight will help stabilize the telescope, and you should be able to see a little better, without so much motion at the slightest touch.

After you look at the first car or house, you can start to see how careful you have to be to use the telescope, and you can start to look at other objects. When you move to the higher power 100x eyepiece, it will be even more critical in getting it both aimed and focused. If its off by just a few degrees, you wont see what you are looking for.

When you start nightime viewing, start with the largest object in the sky, the moon. Its the same process as daytime, except the eyepiece mechanism will have to be adjusted a little closer to the main body of the telescope.

Viewing planets and stars will be the ultimate test. Stars and planets are harder to see, since they are small, and hard to see unless they are in focus. When you can see those views, you have passed the telescope test. Its a matter of careful aim, and having the telescope focus set close to the point where you can see objects that are VERY FAR AWAY. If you are able to focus on the moon, you will be fairly close to being able to focus on the planets. The hardest part is actually getting the planet in the view of the telescope, in other words, aiming it.

The last item that can really mess up the view is a fogged up lens. Usually this happens in the summer when the scope has been in the air-conditioned room, and then it fogs up when taken outside. The solution for this is to let the telescope sit outside for 20 minutes, so the fogged lenses can clear. By the way, the same fogging may happen when you bring the telescope inside during the winter.

I hope this helps you eventually get a clear view of some amazing views in the sky. Your final exam is to take a look at the moon, the rings of Saturn, and the moons of Jupiter, some time in the near future. Have Fun!

Nov 14, 2007 | Vivitar (1607225) Telescope

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