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An astronomy telescope is a scope that allows individuals to see the planets and stars in greater clarity than they can see them with the naked eye. It is not only fun to do, but it can be an activity that both adults and children can share in interest and enjoyment. But, how do you know which telescope to buy? There are so many different kinds, sizes, magnifications, and prices that it can be very intimidating to purchase your first astronomy telescope without some information and education first. Here are some basic guidelines that you can follow when making your choice:

Reflective, Refractive, or Compound? These terms refer to the types of lenses and the way that the images are collected. A reflective scope uses mirrors to collect light and focus the images while a refractive uses curved glass lenses, and the compound astronomy telescope uses a combination of the two.

The cost of a reflective telescope makes it an attractive choice. Mirrors are inexpensive and easy to replace. It is also good for deep space viewing. The disadvantage is that it the mirrors sometimes do not provide the clarity of the refractive scope and sometimes the mirrors are jostled loose.

The refractive astronomy telescope is good for viewing planets and stars. It has very clear images and is easy to maintain. The cost is the main prohibitive factor to most beginning astronomers.

The compound telescope is also on the pricier end of the astronomy telescope family. It is used most often by serious astronomers and those who make a career of astronomy because of the clarity of images and the ability to see images in deep space. This is probably not the best choice for novice star-watchers.

One of the main considerations that you should think about when you are purchasing an astronomy telescope is the aperture. This is a measurement of the ability of the telescope to let light in and also the ability to focus that light. This is a more important measure of the telescope?s abilities than the magnification. The bigger the aperture, the better the telescope will be.

Another important consideration is mounting and portability. If you are going to be moving your astronomy telescope from place to place or taking hiking or camping, you will want a smaller scope with an easy to manage mount. The alt-azimuth mount allows the astronomy telescope to move up and down vertically and side to side horizontally from a central axis-this is perfect for beginners. A more advanced astronomy telescope user might like an equatorial mount which not only allows vertical and horizontal movement, but also sliding from side to side on a perpendicular mount to follow the movement of stars and planets.

As you research your choices you will find a lot more information which can be helpful in deciding the best telescope for you and your family.

1. Universe Today - NASA Awards Jupiter Icy Moons Mission

Home Forum Skywatching Guide NASA Awards Jupiter Icy Moons Mission Tue, 21 Sep 2004 - NASA has chosen Northrop Grumman Space Technology to build its upcoming Prometheus Jupiter Icy Moons Orbiter ...
http://www.universetoday. ...rds_jimo.html?2192004

2. Proposed Future Missions

... Related Links BepiColombo - More detailed information ESA BepiColombo Page ESA Home Page - Italy Mariner 10 - NASA Mercury mission (1973) Mercury Home Page Jupiter Icy Moons Orbiter (JIMO) (Cancelled ...
http://nssdc.gsfc.nasa.go ...ry/prop_missions.html

3. Moon Phase Prediction Software & eBook.

Learn about the Moon with this eBook and predict Moon phases and more with the associated astronomy/astrology software package.
http://thx1142.nsocat.hop.clickbank.net" target="_top

4. The irregular satellites of Jupiter

... They used computer algorithms to search the images for the faint points of light moving across the sky in the manner expected for Jupiter moons. "Searching by eye through the 50 gigabytes of images ...
http://www.astro.ubc.ca/p .../gladman/jup2003.html

5. Moons of Jupiter - Top Sci-fi, Space, Fantasy, Aliens, UFOs, Conspiracy

Sci-fi, Mysteries, Space, Fantasy, Aliens, UFOs, Conspiracy ---Join This List | Login--- Member ...
http://jupiter.top-site-list.com/

6. Jupiter Icy Moons Orbiter - Free net encyclopedia

Jupiter Icy Moons Orbiter From Free net encyclopedia (Redirected from JIMO) Image:Jupiter Icy Moons Orbiter.jpg The Jupiter Icy Moons Orbiter (JIMO) was a proposed spacecraft designed to explore the ...
http://www.netipedia.com/index.php/JIMO

7. ScienceDaily: Astronomers Discover 11 More Small Moons Of Jupiter

... us: Save This Page Astronomers Discover 11 More Small Moons Of Jupiter The discovery of 11 small moons orbiting Jupiter leapfrogs the number of that planet's moons to 39, nine more than the record of ...
http://www.sciencedaily.c ...2/05/020528074834.htm

8. Jupiter's natural satellites - Wikipedia, the free encyclopedia

... The first moons of Jupiter to be discovered were the large Galilean moons, discovered by Galileo in 1610. An earlier discovery by ancient Chinese astronomer Gan De may have occurred in 364 BC. Over ...
http://en.wikipedia.org/w ...'s_natural_satellites

9. !Life on Jupiter's Moons. Europa at almost Ground Level

Life on Jupiter's Moons. Europa at almost Ground Level NSSDC Photo Gallery Europa NSSDC Ridges, hills, and domes on Europa via 48524 1 1 2 2 3 4 3 2 1 3 Click on any image array element to see ...
http://www.angelsun.com/48524col.html

10. A Hotlist on Jupiter's Moons

A Hotlist on Jupiter's Moons An Internet Hotlist on Jupiter's Moons created by Breanna and Danielle Marymount Introduction Scientists have discovered 63 different moons orbiting Jupiter. In 1610 ...
http://www.kn.pacbell.com ...es/listjupiterbr.html

12. Kids Online Resources - NASA

... Europa - Jupiter: Moons Extreme Ecosystem - Microbiologists have found a community of extreme-loving microbes .. Fireball Sightings - Earth is orbiting through a swarm of space debris that may be ...
http://www.kidsolr.com/science/nasa.html

13. Celestron SkyMaster 15x70 Center Focus - Binoculars - Telescopes.com

http://www.telescopes.com ...nter-focus-14955.html

14. jupiter moons picture - Webshots

... Report a violation ´ PREV NEXT ª ´ View Entire Album Photo 6 of 41 jupiter moons by jdjurina Album: Planets & Moon's 2 Image resolution: 800 x 600 ´ View Full Size Topic: Community > scenery & ...
http://community.webshots ...090239027825217NsOacc

15. The Other Moons of Jupiter

The Other Moons of Jupiter Jupiter has a dozen moons other than the large Galilean satellites. These are much smaller than the Galilean moons. An example is Amalthea, shown in the image to the right ...
http://csep10.phys.utk.ed ...ian_moons/others.html

16. Topographical Engineers - Time and the Moons of Jupiter

... CORPS OF TOPOGRAPHICAL ENGINEERS Checking Greenwich Time Using Jupiter's Moons Callisto, Europa, Io and Ganymede Approximate Sidereal Times of the Occultations of Jupiter's Satellites by Jupiter, and ...
http://www.topogs.org/jupiter.htm

17. Keystone Weekly - Keystone Science Network

... 4, issue 24 Peters projection map, Jupiter moons, food and agriculture workshop March 31, 2003: vol. 4, issue 23 Sci4Kids, Space Day 2003 March 24, 2003: vol. 4, issue 22 Science.gov, biodegradable ...
http://www.keystone.fi.edu/weekly/

18. Jupiter with Moons

Jupiter with Moons Jupiter with two of its moons, Europa and Io, in transit across its face and casting their shadows on it. The small black dot slightly above and to the left of center is the shadow ...
http://www.guidescope.net ...sys/jupiter040330.htm

19. JPL Information Services

+ View the NASA Portal This computer is funded by the United States Government and operated by the ...
http://prometheus.jpl.nasa.gov/

20. MEADE DEEP SKY IMAGER PRO - Telescopes from Woodland Hills Telescope

... including these features: Time Lapse photography tool Create movies of the rotation of Jupiter, moons transiting Jupiter, etcÖ Auto and Manual exposure settings Let Deep Sky Imager optimize the ...
http://www.telescopes.net ...p_sky_imager_pro.html

21. Dvd Fire Goblet Harry Potter Release|Harry Potter And The Goblet Of Fire Wal...

... Ron and Hermione, seemed to be going on more with the giant of the giants: Jupiter but to be more precise with its moons. But unluckily for the wizards and witches, Astronomy was making life ...
http://www.harrypottersbo ...moons-of-jupiter.html

22. Space Today Online - Exploring Jupiter - JIMO - Jupiter Icy Moons Orbiter

EXPLORING THE JUPITER SYSTEM Jupiter Moons Oceans Volcanos Rings Radio JIMO Galileo Cassini Pioneer Voyager Resources The Jupiter Icy Moons Orbiter: JIMO is Proposed for Flight in 2015 NASA artist's ...
http://www.spacetoday.org/SolSys/Jupiter/JIMO.html

23.

Read Books Online Free | Alphabetical Index Jupiter Icy Moons Orbiter The Jupiter Icy Moons Orbiter (JIMO) is a proposed spacecraft designed to explore the icy moons of Jupiter. The main target is ...
http://publicliterature.o ...cy_moons_orbiter.html

 



K.A.Cassimally is the editor in chief of Astronomy Journal and Astronomy Journal Ezine. He is also the co-founder of the RCPL Astronomy Club. K.A.Cassimally is best known for his article 'Harry Potter and the Moons of Jupiter'.He is also Senior Columnist
10fa Experiments have shown that human physiology becomes very weak in an unknown environment to the brain. Humans then start to panic. Problem is that humans do not necessarily want to show their uncertainty. So they hide it. When they actually hide this uncertainty, humans start to get stressed and this is the big problem.

When we get stressed, we become moody and cannot concentrate on what we are doing. Imagine an astronaut getting really frustrated in the middle of a mission on the International Space Station. This may be catastrophic! He seizes a hammer floating nearby in the zero-gravity of space and demolishes the ISS's main computer. The whole crew will be in a most-probably-fatal danger. No doubt the guilty astronaut will realise the consequence of his action afterwards but it will be too late.

Trained astronauts themselves, have big difficulties adapting to a space mission of up to two months. Think of a manned mission to Mars. This journey takes a minimum of two years to accomplish plus there is the return journey too. Humans will have to live in shuttle conditions with no privacy for four years that is 1461 days (1 more day from a leap year included). You will agree with me that it is hard to make a journey of this many days properly. Bear in mind that a journey of only 60 days seems difficult. What should we do then?

We presently have the technology to go to Mars. The problem lies with the persons who are going to board on the shuttle. Many scientists have concluded that humans like us will have much difficulty in overcoming the stress and frustration. But humans unlike us may be able to do it! Imagine a human being with 4 arms instead of 2 (the 2 additional arms take the places of the 2 legs). He will be able to crawl everywhere on a shuttle like a spider. This spider human will specialise himself in this field. I am not joking! Scientists say that they can create a human with 4 arms and no legs.

It seems easy to do so too. Now that we are starting to unlock the secrets of the DNA and genes things, we are also starting to modify them. As you know DNA contains all information about a person and if it is modified, the person too is modified. So, if my DNA is modified then, I too will be modified: physically, mentally or emotionally. DNA modification seems to be the key for going elsewhere that is away from Earth.

Anyway, if ever we go on another planet, colonize it and live on it then the appearance of us, humans, will change. The physical appearance of a person depends on the physical environment surrounding that person. So if ever we go on Mars, our eyebrows will become more important and they will therefore expand in size. Why our eyebrows will evolve is because Mars is dustier than Earth in terms of sand and other small particles.

We know that Earth is not permanent and we know that we will have to go away one day if we want to live on. We also know that Mars, which till now has appeared to be the ideal place is going to go in smoke like Earth too. We are not much prepared to teraform Mars though but this is only a matter of time. With new technologies, new ideas will burst out till the best one is proposed. Then we can go to Mars. We may however have to transform ourselves to remain alive though. Will we be able to do all this? Well a real spider man would be a great thing to see.

If ever we succeed in doing all these things though then we may say this clearly and loudly,
“Humans are one step above everybody else neither in this solar system nor in this galaxy and not even in this universe but in this world.”

About the Author

K.A.Cassimally is the editor in chief of Astronomy Journal and Astronomy Journal Ezine. He is also the co-founder of the RCPL Astronomy Club. K.A.Cassimally is best known for his article 'Harry Potter and the Moons of Jupiter'.
He is also Senior Columnist at BackWash.com where he writes 'Not Scientific Science'.
Website: http://www.rcplastronomyclub.zik.mu
http://www.backwash.com/content.php?id=358
Email: kcassimally@rcplastronomyclub.zik.mu

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http://www.aaarticles.com/article.php?id=18172