How good is my new telescope? - build refractor
I've just finished my new telescope, but have not had the chance to use it as my time like hell clouds, I'm in Ireland on his position.
Can someone me a good summary of what to do in the situation, with these specifications:
Bezel Type
Type achromatic
Opening times (mm) 80
Focal Length (mm) 900
Aperture ratio 11.3
Solving capacity of 1.44
Limit Value (GAM) 11.3
The power capture, the light 130
Zipper Type
Log (per eye) 1.25
1.25''eyepieces 20mm, 4mm
5x24 Finder Scope
Software TheSkyLevel1
3x Barlow lens
Powerseeker Series
Hope you can help!
Build Refractor How Good Is My New Telescope?
4 comments:
Certainly not what I want to recommend the scope of the beginner, or what I do. It has two major problems:
1) 80 mm aperture is _tiny_ little show something in the sky. Too small for the real details of the planets and too small for all but the brightest deep-sky objects. This telescope would call his grandfather, a popular dimension, there are 50 or 60 years ago, but completely obsolete in the 21st Century. Today, I can not recommend anything less than 150 mm opening for beginners.
2) the weakness of the equatorial mount. This is bad news, since the beginning. The machined aluminum tripod is suffering from excessive vibration. The Assembly itself is less than the Hubble poor and has practically no influence. It is hard to use, hard to adjust, really frustrating anyway.
The only purpose of this magnitude is directly on the moon. The planets are too small to see in detail, and the moons of Jupiter. Only the brightest object in the sky will be visible EEP and becomes darker andblunt.
For just a little more money you can use a 6 "Newtonian reflector on a Dobsonian is receiving mounting preferable to a larger telescope: the brilliant images and strong, easy to use and collect.
Here are some websites with good information on beginner telescopes:
http://www.gaherty.ca/tme/TME0702_Buying ...
http://www.scopereviews.com/begin.html
http://observers.org/beginner/jrfbegi ...
For more extensive information, read Phil Harrington Starware, 4 Edition (Wiley).
You get the best value for your money with a Newtonian reflector on a Dobsonian mount, such as the following:
http://www.telescope.com/control/categor ...
... http://www.skywatchertelescope.net/swtin
Buy from a store that specializes in the purchase telescopes and astronomy, either locally or online, not in department stores, discount stores or eBay, as is everything they sell junk. Find your local astronomy club and try different telescopes at one of its groups of stars:
http://www.skyandtelescope.com/Community ...
I urge beginners to leave astrophotography until they have learned their way into the sky. Astrophotography is by far the most expensive and difficult area of amateur astronomy.
Many people who buy telescopes have no idea how to find interesting things to be observed, too. Finding a good introduction to things is Nightwatch by Terence Dickinson (Firefly). An expanded book by Phil Harrington Star View (Wiley).
is better than an astronomy club. They will tell you everything you need.
PS: I think it's a great field @
Here is a list of the Astronomy Club of the State:
http://www.astroleague.org/societies/lis ...
I use a 80mm field similar to yours, like finding a 'scope in my LX90.
The staff is excellent, but the treatment. Unstable and should be the best polar alignment of the mount to be used. I recommend, not an equatorial mount for a beginner.
Save the scope and may the best. At a later stage can be on a good old az bracket mounted and the use of do as an area of grave-and-go or what I did and mount another major application area.
Seeking advice from members of the local astronomy club.
PS: I use a telescope StellarVue 80 mm, mounted on a Televue how old AZ grave and go to scale TelePod.
http://www.opticsplanet.net/televue-tele ...
The tone of your question indicates that you are new to astronomy. This area is not very good - it's really not just a department store. This is not the kind of results that would have recommended. Would probably have been better would have been with a reflective silver 4.5 "similar, but with much better light spoon.
However, it is of some use. The beauty of this region is the equatorial mount is at least useful, if not permanently. The opening of 80 mm is small and limited but still useful. My ED80 refractor has the same size, but a sophisticated design and color and light transmission better, but essentially in the same league in terms of what you see. However, I use it in conjunction with a number much larger than 190 mm for the things that you can not see.
The scope is the beautiful views of planets and stars, and likely some of the brightest objects in space, such as the Orion Nebula. However, it is simply too small for most galaxies and nebulae, it is too weak to be able tothem. A refractor is a better contrast of objects you can see that for a reflector, but the visual design of relatively simple (achromatic) to retrieve a row, especially at the stars.
Eye will work with the scope are a bad choice. 20mm 45x is fine and up to 135x Barlowe - that is, on the upper end of the performance range of this field is the most commonly used rule of thumb among 160x hold for this sector. The 4mm are 225x is too high for the size - it is still weak, blurred images in the eyepiece.
I think with a different view on mid-range surface, such as 7mm 86x - I recommend the Baader Ortho 7mm, but it will cost about £ 80th A Plossl would be cheaper, but I would stay away from them in this focal length.
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