Question about Optics

3 Answers

To purchase telescope

Dear sir,

i am new to astronomy and i want to see planets,star,satttelites etc.

please give give suggestions for purchasing telescope.,and othe necessory suggestions.

i am from Ahmedabad,Gujrat,India

My e-mail i.d. neel_lipi @yahoo.com

by
a friend
Neel khakhar

Expecting reply soon

Posted by on

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I want to bye new telescope for my son in gujarat
anybody has address how can i bye

Posted on Aug 08, 2009

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Dear All,
Their is big showroom for Telescope & Binocler in Ahmedabad
that is Ankur Hobby Centre,Abhirath Complex,Near Sardar Patel Colony,Naranpura.Phone 079 -66621313,27681796.
www.scienceprojectsshop.com

Posted on Jul 09, 2011

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U can get new telescope from buy.com.
or u can just type telescope in google.com and u can get so many options to buy telescopes and related things to astronomy.
u can get these things from ebay, from ebay u will get old and new things.
there are some sites from where u can get telescope
buy.com
ebay.com

Posted on Mar 22, 2008

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Posted on Jan 02, 2017

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How to use my telescope to stare better at moon, venus ...etc


1. Download stellarium at stellarium.org (free) This will tell you where to find the planets.
2. Do not use the erect image eyepiece for astronomy, It is for terrestrial viewing only.
3. Buy a moon filter. They are inexpensive ($12 at Agena Astro and others)
4. Huygens (H20, H12.5) are VERY cheap eyepieces,They have narrow field of view and low contrast. Purchase a good plossl or better eyepiece, you will really see the difference.
5. The SR4 (symmetrical Ramsden) is another cheap eyepiece. Avoid eyepiece designs that were invented in the 1700s. See item 4 above.

Mar 16, 2013 | Optics

Tip

Your LOCAL Astronomy Club! Join NOW!


As the Treasurer for one of the largest Astronomy clubs in the USA, I can tell you that NOTHING has helped me along with the Astronomy hobby more than the CLUB! and it's members.

Most large Astronomy clubs have:

Monthly meetings where all things about the club and the hobby are discussed.

Free star parties where members set-up their telescopes and show the sky to the general public. They share all manner of information about the hobby to the people who attend the star party.

Some club's have a "dark sky" location, usually a large field, where members can take their telescopes away from city light pollution and really SEE the sky! Our club has a bunkhouse, meeting room, and domed observatory with a 16 inch computer controlled telescope at it's dark sky site. Additionally we have several nice loaner scopes at the site that the members can use for free.

Many clubs, ours included, have close ties with a local college or university. Our club is sponsored by the Physics Department of a nationally known university. We use a campus lecture hall with full multi-media facilities to hold our monthly meetings.

The club offers member discounts on the two major Astronomy magazines - Astronomy, and Sky and Telescope.

Most club's have Special Interest Groups called SIG, that specialize in certain aspects of the hobby; like Public Observing, Astro-Photography APSIG, and Amateur Telescope Making ATMSIG. You can get specialized assistance with whatever interests you, or join others and show the sky to the general public at a local star party!

What does this all COST? Not very much really! Our club dues are $40 per year. A very small price to pay for access to the dark site observatory, and speakers at our monthly meetings; along with all the other club activities.

So my advice to you would be to JOIN a local Astronomy club and get involved with it's activities. The Astronomical League has a list of clubs BY STATE, at this web site:

http://www.astroleague.org/societies/list

Join now BEFORE you purchase your first telescope. The members will help you purchase the right one to fit your Astronomy interest.

Clear Skies!
TelescopeMan

Visit our club's web site here:
www.texasastro.org

RSS Link to all of TelescopeMan's Audio & Video Podcasts

on Jan 26, 2010 | Optics

Tip

Binoculars make a GREAT first "Telescope"!


For beginners in the Astronomy hobby we usually recommend that they buy a nice pair of either 7x50mm binoculars, or 10x50mm binoculars as their first 'telescope".

Additionally they should buy one or two Astronomy books, one of which should be a star chart. You will use the star chart and the binoculars to learn a little bit about the night sky BEFORE you buy your first telescope.

Good books:

Objects in the Heavens by Peter Birren- http://www.amazon.com/Objects-Heavens-Peter-Birren/dp/155369662X/ref=sr_1_fkmr0_1?ie=UTF8&qid=1264187389&sr=8-1-fkmr0

Sky & Telescope Star Atlas- http://www.amazon.com/Sky-Telescopes-Pocket-Atlas/dp/1931559317/ref=sr_1_1?ie=UTF8&s=books&qid=1264187432&sr=8-1

Turn Left at Orion- http://www.amazon.com/Turn-Left-Orion-Hundred-Telescope/dp/0521781906/ref=sr_1_1?ie=UTF8&s=books&qid=1264187469&sr=8-1-spell

Nightwatch- http://www.amazon.com/NightWatch-Practical-Guide-Viewing-Universe/dp/155407147X/ref=sr_1_5?ie=UTF8&s=books&qid=1264187498&sr=8-5

Spend a few months learning the sky with the binoculars and JOIN a local Astronomy club. The members will help you learn the sky and you will get to look through their telescopes and decide on which one you should purchase. Did you know that the Astronomical League gives awards for completing several different observations using binoculars! Join your local AL Astronomy club to learn about observing awards using only binoculars!

List of Astronomy Clubs by State:
http://www.astroleague.org/societies/list

Clear Skies!

Read my other TIPS on my profile page.

Joe

on Jan 22, 2010 | Optics

2 Answers

We just bought a Magnacraft Telescope. Can you help us with a problem?


This is really considered to be a toy telescope, and is really not suited for Astronomy.

What is your problem?

Oct 08, 2010 | Magnacraft Optisan Telescope and...

1 Answer

Just purchased first telescope ever from Aldi in Spain, OPTUS 553 35x-262x. No instructions in english on how to use it! can you help please?


You will not find a manual for that imported (not a name brand) telescope. Try to locate a local Astronomy club. The members will help you with the telescope. There are several astronomy clubs in Spain-- see this web site:

http://www.astronomyclubs.com/1/167/0/0/club.aspx

Sep 23, 2010 | Optics

Tip

Buying your first telescope


So you got the Astronomy bug or a young child and you want to buy a telescope. Here are some suggestions:

1. Never buy a telescope from Wal Mart or CostCo, or Ebay unless you know EXACTLY what you are buying. Most of the scopes on Craigslist.com are also junk or toy telescopes. (I have bought two telescopes from craigslist.com; BUT I knew exactly what I was buying!)

2. Do NOT buy an equatorial mounted scope as your first telescope. You must polar align the scope to use it, and most cheap low cost EQ mounts are shaky and not actually built to support the telescope. Can you find Polaris, and point the EQ mount toward Polaris? Unless you polar align an EQ mounted telescope, it cannot be used!

3. Locate a local Astronomy club and attend their meetings and star parties. You will get to look through the member's telescopes and ask questions. Do this BEFORE you buy your first telescope.

4. Usually we recommend a small Dobsonian mounted reflector as your first telescope. See this web site: http://www.telescope.com/control/dobsonians/classic-dobsonian-telescopes Try to buy one that is at least 6 inches in aperture. An 8 inch Dobsonian would make a great beginner telescope! The 4.5 inch makes a good child's telescope.

These are easy to use and POINT at objects in the sky, and you get the largest aperture for the least amount of money.

5. Buy several Astronomy books. For example, "Turn Left at Orion", and "Nightwatch". Read these before you spend your money. Also download a free monthly star chart at www.skymaps.com You can also subscribe to Astronomy magazine, or Sky & Telescope magazine.

6. NEVER buy a telescope that advertises MAGNIFICATION. This is the least important quality of a telescope, which is made to gather the light from dim and small sky objects. 575 power magnification written on the outside of the box is a LIE! Also, the pretty pictures on the box were taken by the Hubble Space Telescope! You will NOT see color in that 70mm telescope you are planning to buy.

7. The MOUNT is just as important as the actual telescope. A cheap department store toy telescope on a shaky mount will frustrate the beginner. You CANNOT buy a usable telescope for less than about $200. Sorry but that's just the way it happens to be!

8. A nice pair of either 7x50mm or 10x50mm binoculars should be considered as your first TELESCOPE purchase, along with a Star Chart. Learning your way around the sky is a big part of the hobby. A pair of 10x50mm binoculars is almost the same aperture as that 60mm telescope you are thinking about buying! The binoculars have a wider field of view which will help beginners SEE and LOCATE more sky objects.

7. The Astronomical League has a list, by State, of Astronomy Clubs on their web site:
http://www.astroleague.org/societies/list Join a local Astronomy club!

Again, DO NOT buy a telescope until you learn a little bit about the different types of scopes (Refractor vs Reflector) and their strong and weak points for each scope design.

Here are example of scopes NOT TO BUY!

http://www.walmart.com/catalog/product.do?product_id=12538000 EQ shaky mount

http://www.walmart.com/catalog/product.do?product_id=8402684 Cheap GOTO computer scope- plastic gears

http://www.opticsplanet.net/meade-114eq-ast-model-45-f-88-equatorial-telescope-04056.html another shaky EQ mount

http://www.opticsplanet.net/tasco-50x50-telescope-and-microscope-combo-red-49tn.html I don't know about the microscope, but the telescope has the same aperture as a pair of binoculars!

http://www.opticsplanet.net/tasco-novice-402x60mm-refractor-telescope-30060402.html You might be able to see the moon and a few of the planets but with 60mm of aperture it's just too small and the mount is very shaky

Read this web site to learn about the different types of telescope designs.
http://www.texasastro.org/telescope.php

If you are buying a telescope for a child buy a 4.5 inch or 6 inch Dobsonian. If the scope is for YOU, then buy an 8 inch or 10 inch Dobsonian. Like one of these:
http://www.telescope.com/control/dobsonians/classic-dobsonian-telescopes

Or one with a computer hand controller like these:
http://www.telescope.com/control/dobsonians/intelliscope-dobsonian-telescopes

AND WATCH this video- the $800 telescope-- you will learn a lot about telescopes by listening to Andy talk about telescopes.
http://www.andysshotglass.com/800Dollar.html

Notice how much stronger the equatorial mounts appear on this video, and his final recommendation of a Dobsonian reflector as a good beginner's scope in the largest size (aperture) you can afford. Remember-- objects in the sky are VERY small. Your scope and it's finder scope must be lined up exactly pointed at the same spot in the sky; or you will not see anything!

I cannot emphasize this point enough! Telescopes have very small fields of view, no bigger than the tip of your finger held at arm's length!

Here is a free monthly star chart that you can download every month:
www.skymaps.com

Clear Skies!
TelescopeMan

RSS Link to all of TelescopeMan's Audio & Video Astronomy Podcasts

on Dec 01, 2009 | Optics

1 Answer

Hi, I have assembled my telescope, i can see through it in the day..but at night even though it is a full moon, it gets difficult to get a clear picture. The manual says you can see lots of stuff with it,...


You have a 3-4 inch reflector. DO NOT USE the 2x barlow. It creates too much magnification for that small telescope.

Put the eyepiece with the largest number written on it into the telescope and then try again.

Objects in the sky are very tiny. The scope must be pointed directly at them to see them.

Download a free star chart here:
http://www.skymaps.com

and try to locate a local astronomy club to get help with locating sky objects.

Oct 22, 2009 | Optics

1 Answer

Spotting Planets and Satellites in the sky


Several recommendations-

1. Contact a local Astronomy club and attend their meetings.

2. Download a free monthly star chart from www.skymaps.com

3. Install the free planetarium software Stellarium-- www.stellarium.org

May 15, 2009 | Konustart 700 (120 x 60mm) Telescope

1 Answer

Tasco telescope 57500


Astronomy is a learned skill- I would suggest that you contact a local Astronomy club and attend their meetings and their free star parties-- ask lots of questions and see what kind of telescopes they use.

Dec 31, 2008 | Tasco 350x50mm Refractor Novice Telescopes

1 Answer

No vision


1. Read menuals proper.
2.Start sky watching from moon & than planet & after younsee star or constalation.Their no change in star with telescope.But you cansee mor stars in constalation.
3. Take support from books. or astronomy softwares.

Dec 26, 2007 | Optics

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