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newbie questions
since im anewbie, i have an etx 70 that my wife bought for me
with the 25mm eyepiece , mars is a pinhead with the 9mm its a 3/32" size with the 4mm its a blurry 1/8" i guess im under whelmed, because yes the 25 mm is the sharpest image, but its a pinehead, and uhhhhhhhhh, well, even with perfect eyesite, you dont see much more than a red dot of light so, question is? larger scopes, do they produce larger images in the eyepiece? i see all these wonderful pictures on the net, of detailed nebula, and star clusters and such, but, im not seeing them..................... looks like the etx70 will be gathering dust, or looking at the neighbors wife (lol) dave |
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Dave wrote:
since im anewbie, i have an etx 70 that my wife bought for me snip so, question is? larger scopes, do they produce larger images in the eyepiece? snip I presume thats a 70 mm aperture. Hmmm. Not going to do much for you, but some people only start with naked eye observing and others just use binoculars. The resolution, (or "sharpness" of the primary image), is related directly to the size of the objective lense, assuming the optics are reasonable quality. So the "size" of the scope is important for what you want to see. The other thing to consider is educating yourself about what you want to look at. What you get out of an observing session is directly related to how much you know about what you're observing, and what you want to find. I've been out of the astromony scene for some years, (decades really), so I'm no expert, but you might want to try your 70 out on lunar observing or some brighter extended objects. Read up on the target ahead of time check the star charts for it's location. Learn the "skymarks," (like "landmarks" but...), and plan for when it will be visible in your area. Be patient with finding the thing, (that's half the fun). (Well OK, the moon shouldn't be that hard to find, but some targets will be more so). In time you'll want a better scope, but stay away from the dime-store wonders, and check the new telescope buyers FAQ at http://home.inreach.com/starlord Best of luck with it. -- Regards Fred Remove FFFf to reply, please |
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orion's got new scopes that are "digital dobs". orion skyquest xt
intelliscopes...i just saw them in their new fall catalog! http://www.telescope.com/jump.jsp?it...EGORY&itemID=9 "C.Swartz" wrote in message ... In article xTQ2b.270624$uu5.61362@sccrnsc04, says... thanx fred the ETX 70 is yes 70mm and its meades dime store scope (so i am finding out) It has a goto, so finding things arent hard........................... seeing things with any interesting detail is!! Dave Go for some star clusters. Open clusters are nice for small scopes. The Perseus double cluster (NGC884/NGC869) is a gem. Use lower magnification. Also, try M52 in Cassiopeia. Try the globular cluster M13. It'll look like a small cloud of light, but you should be able to resolve some individual stars. A look at M13 through a bigger scope is breath taking. Start with low mag then increase. Another globular: M15 in Pegasus. Also, look for binary stars. Especially ones where the companion stars are differnt colors. Blues and yellows are nice. Planetary nebula: M57 the ring nebula in Lyra. M27 the dumbell nebula in Vulpecula. Galaxies: M32 and M32 the Andromeda galaxy. M81 and M82 in Ursa Major. Wait for winter and check out the Orion nebula. If you ever want to get a bigger scope, a dobsonian will get you the most aperture for the money. But, they don't have GOTO and can't track. -Chris Swartz |
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Dave wrote:
since im anewbie, i have an etx 70 that my wife bought for me with the 25mm eyepiece , mars is a pinhead with the 9mm its a 3/32" size with the 4mm its a blurry 1/8" i guess im under whelmed, because yes the 25 mm is the sharpest image, but its a pinehead, and uhhhhhhhhh, well, even with perfect eyesite, you dont see much more than a red dot of light so, question is? larger scopes, do they produce larger images in the eyepiece? i see all these wonderful pictures on the net, of detailed nebula, and star clusters and such, but, im not seeing them..................... looks like the etx70 will be gathering dust, or looking at the neighbors wife (lol) dave Aye that's the same problem I have with my ETX-60. I have heard that a 2x Barlow lens will help a little for planetory observing though. But overall it seems these lil scopes are better suited for deep sky observing; whereas the big dob cannons are the ones to use for planets. |
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