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Can't see Jupiter/Saturn with RX-9 telescope

When I looked at Jupiter or Saturn with an RX-9 reflector telescope I couldn't see the GRS on Jupiter or Saturn's rings, I used all the powers I had. Can anyone help me?

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I would not feel too disappointed. The RX-9 is not a large or powerful telescope (sorry) and is therefore not capable of huge magnification without loss of clarity. The largest practical magnification for this scope in a dark-sky site would be about x225, which would be about a 4mm eyepiece. Such an eyepiece is in fact difficult to use unless it is a very expensive wide-angle type. They can cost $500 just for the one EP. The EPs you got with the scope will not be in that league, being cheap "Plossls".


If you are in the suburbs, you will also have a lot of light pollution, or sky-glow, and this makes it even more difficult to see a sharp image. The best image available may not be enough to see the bands, let alone the GRS. In the burbs you may only be able to use a max magnification of x90 , or about a 10mm EP.


Bear in mind that ultra-high magnification for visual observing is pure advertising nonsense, for all but large observatory scopes. Those lovely pictures you see are the result of long, heavily processed time exposures with a sensitive camera. You won\'t see that with the naked eye, especially in the burbs.


In addition to all that gloom, the GRS is not always facing us here on Earth. Here is when you can expect it to be visible


http://www.skyandtelescope.com/observing/objects/planets/3304091.html?page=1&c=y

Posted on Nov 28, 2012

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Posted on Jan 02, 2017

SOURCE: what level magnification do I use to see jupiter

Your 3.5 inch telescope has a maximum magnification of about 170 power.

This is under perfect sky conditions and a perfectly collimated telescope. Galileo used 30 power magnification to see Saturn's rings and the moons of Jupiter!

Put the eyepiece with the largest number written on it into the focuser do not use the 2x barlow if you have one.

Point it at Saturn. You will see the rings. However they are almost slanted directly toward Earth right now. You will only see a thin line going across the planet.

By the end of 2010 they should open up again enough to make out the "ring" shape.

You only need about 50-70 power to view Jupiter or Saturn, or Venus. Mars is smaller and about 100 power to 120 power should permit you to see the disk of the planet (but it's still very small in the eyepiece).

Posted on Dec 29, 2009

SOURCE: wont focus correctly

TOO MUCH magnification. Put the eyepiece with the largest number written on it into the telescope. DO NOT USE the 2x barlow. Try Jupiter with lower magnification.

Posted on Oct 15, 2009

SOURCE: Not really a problem, but

Is this your telescope?

http://www.fleamarketstore.com/ca/4-280501979376-28179/venture_rx_9_reflector_900_x_114_telescope_675x_power.htm


If it is you can forget about 675 power magnification. The maximum magnification for ANY telescope is about 50 times aperture. You have about a 4 inch aperture mirror so 200 power is the highest it will go, and ONLY on perfect nights when the sky is very stable and if your optics are PERFECT.

Most of us only get 30-40 times aperture. You will not see color almost everything is shades of gray. If you are expecting a GIANT view you will certainly be disappointed. BUT-- the scope can show you many objects in the night sky.

Start with the moon and also Jupiter which is up shortly after dark. Download this free monthly star chart and read my tips on my profile page.

www.skymaps.com

Posted on Jan 20, 2011

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I need the instruction manual for venture rx-9 reflector telescope


http://ventureoptics.com/RESOURCES_files/Telescope%20Instruction%20Manual-NEW.pdf The user manual is available to download from the manufacturer's website, along with additional support resources.
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Sorry these are imported REFLECTOR style telescopes on a small equatorial mount.

No manuals exist for this exact scope but there are many just like it-- here is Meade telescope's manual for almost the same identical telescope.
http://www.meade.com/manuals/TelescopeManuals/Reflectors/062002Jupiter114EQ-D.pdf

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Not really a problem, but a question on expectations for a Venture RX-9 900mm reflector telescope. What should i be able to see on a clear night concerning Jupiter and Saturn? I am just getting started...


Is this your telescope?

http://www.fleamarketstore.com/ca/4-280501979376-28179/venture_rx_9_reflector_900_x_114_telescope_675x_power.htm


If it is you can forget about 675 power magnification. The maximum magnification for ANY telescope is about 50 times aperture. You have about a 4 inch aperture mirror so 200 power is the highest it will go, and ONLY on perfect nights when the sky is very stable and if your optics are PERFECT.

Most of us only get 30-40 times aperture. You will not see color almost everything is shades of gray. If you are expecting a GIANT view you will certainly be disappointed. BUT-- the scope can show you many objects in the night sky.

Start with the moon and also Jupiter which is up shortly after dark. Download this free monthly star chart and read my tips on my profile page.

www.skymaps.com

Jan 19, 2011 | Optics

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Instructions


I"ve been an amateur astronomer for "over" forty years, started when i was eight. Stars aren't that impressive, most look the same....i spend my telescope time with a cheap $200 21/2 inch "Refractor" and have seen all planets except pluto, i had to use a 41/2 inch refractor just to be able to view Neptune and just barely saw it and yes it was Blue!! Refractors are best for planet viewing. Dont waste your time with viewing Mercury or Venus...not impresive! The best looking (but not in the next few years because of ring alignment) is Saturn...hurry up and you might still get a chance to see the rings a little before they go into what i call hibernation mode, they'll make a straight inclination though the planet which makes for not so impressive views...next most impressive and one i view the most is Jupiter and its for moons Calisto, Ganymede Io, and Europa...you will always see these in different orbits. But i just use a pair or Celestron Binoculars 15 x 70s..i use them to look at the Moon, Mars, Jupiter, Saturn, Comets, overhead comunication Satilites passing bye..and the most awsome of them all the "Orion nebula" colors are outstanding, and if your real good at knowing your constellations you can locate the Andromeda Galaxy. It'll look like a buffy cotton ball with binoculars..dont view the sky ever with a full moon.it makes for poor viewing,but this is where the Reflectors like a 4"Newtonion or lot bigger like at least an eight inch Cassigrain..these telescope are made to view whats called "faint fuzzies", Nebulas, Galaxies, star clusters etc. 40 years ago i cold look up in my local skys and not have to worry about light polution..so i go out to the deserts with just my binoculars...they are so convienient. Start to learn the sky with binoculars...it"ll be well worth it! The one Great thing about binocs is that everything you view is right side up as opposed to telecopes upsidedown. To locate planets they will track within 10 degrees in the path that the sun takes. If you look and see some really bright stars that dont twinkle, chances are that it will be Jupiter, Saturn or Venus..but you will only see Venus in the early mornings or late evenings..Mars is a little trickier, sometimes its small and red and every few years it can be as bright as Jupiter when its at it closest to the earth!
http://www.paulni.co.uk/images/EarthinPerspective.pdf
type in this link i think above i think you enjoy! later.

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1 Answer

What level magnification do I use to see jupiter or saturn in a telescope?


Your 3.5 inch telescope has a maximum magnification of about 170 power.

This is under perfect sky conditions and a perfectly collimated telescope. Galileo used 30 power magnification to see Saturn's rings and the moons of Jupiter!

Put the eyepiece with the largest number written on it into the focuser do not use the 2x barlow if you have one.

Point it at Saturn. You will see the rings. However they are almost slanted directly toward Earth right now. You will only see a thin line going across the planet.

By the end of 2010 they should open up again enough to make out the "ring" shape.

You only need about 50-70 power to view Jupiter or Saturn, or Venus. Mars is smaller and about 100 power to 120 power should permit you to see the disk of the planet (but it's still very small in the eyepiece).

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How would you rate +Venture RX-9 telescope?


If you read down this page there is a manual
http://cs.astronomy.com/asycs/forums/t/30807.aspx

This is a cheaply made in China reflector telescope. It is mounted on a small equatorial mount which is too small to support the tube. It will be very shaky. These scopes appear on Craigslist after the owner determines they are really just a "toy" telescope.

You can do much better for their $249 asking price. Look at a Dobsonian telescope like one of these.

http://www.telescope.com/control/product/~category_id=classicdobs/~pcategory=dobsonians/~product_id=08942
6 inch telescope mirror, 50% larger than the Venture toy telescope

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1 Answer

Wont focus correctly


TOO MUCH magnification. Put the eyepiece with the largest number written on it into the telescope. DO NOT USE the 2x barlow. Try Jupiter with lower magnification.

Oct 05, 2009 | Optics

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