logosm.jpg

 
Ask Us A Question Here
 
A Bird's Home
 
A Birder's Resources
 
Become an Affiliate
 
Buy Gift Certificate
 
Celestron Frequently Asked Questions
 
Dealer Wholesale Account Information
 
Newtonian Reflector Telescopes
 
NexStar Series Telescopes
 
NexStar 4 Telescope
 
Photo Gallery
 
Product Reviews
 
Refractor Cross Reference Table
 
Refractor Telescopes
 
Schmidt-Cassegrain Telescopes
 
The Registry of Nature Habitats Certification
 
Dealer Account Information
 
Cypripedium - Lady Slipper Orchids
Bird feedersBirdhousesBird Houses Bird Feeders

Search for products for sale only!

Click on any product image to see larger image of product.
Bookmark - Add us to your Favorites

>



Google

Refractor Telescopes

Choose a Telescope:

Refractor Telescopes
Refractor telescopes (also known as dioptrics) are probably what most of us think of when we hear the word "telescope." Refractors have a long, thin tube in which light passes in a straight line from the front objective lens directly to the eyepiece, at the opposite end of the tube.

Refractor telescopes have many advantages, including:

  • Simplicity of design, which translates into reliability and ease of use.
  • Little or no maintenance requirements.
  • Excellent lunar, planetary and binary star viewing.
  • High contrast images with no secondary mirror or diagonal obstruction.
  • Sealed optical tube, to protect the optics and reduce air currents, which tend to degrade image quality.
  • Permanently mounted and aligned objective lens.

The 60mm (2.4") refractor is the most popular telescope size for beginning astronomy enthusiasts and for casual gift-giving. This size telescope is perfect for introducing newcomers to astronomy, at an affordable price.

For astronomical observing, the 60mm refractor allows you to see lunar details, Saturn and its rings, Jupiter and its moons, the phases of Venus, larger globular clusters, bright double stars and some bright nebulae. After adding an optional solar filter, you can observe activity on the sun. In addition, a 60mm telescope can be used for terrestrial viewing, bringing the world closer to you and allowing you to observe wildlife, distant views and your environment.

The 70mm models serve the beginner to intermediate observer who wants
slightly more aperture than the 60mm models and allows you to see more detail on objects

Celestron's 80mm and 102mm refractor models are top choices for beginning observers who want to start with a more powerful telescope and for intermediate level astronomers. These instruments perform equally well for viewing within our solar system and for deep-sky observing. Starting with a more powerful telescope can be a good option when you're looking for an instrument to grow with as you explore the hobby of astronomy.

Celestron offers two different options in refractor telescopes: the altazimuth mount and the equatorial mount. The economical altazimuth is the simplest type of mount, offering two motions: altitude (up and down) and azimuth (side-to-side), for an easily achieved full range of motion. Celestron's equatorial models use the German equatorial mount with setting circles and slow motion controls on both the right ascension (R.A.) and declination (DEC.) axes. These features make it easier to locate and track objects.

While observing, you'll notice that as the earth rotates on its axis, stationary stars appear to move across the sky. Thus, due to the earth's rotation, the object you're viewing will float out of view in both axes, over time. A telescope on an equatorial mount can be aimed at a celestial object and guided with the slow motion controls to follow the object across the sky and keep it in the field of view of your telescope.

Support

The Registry of Nature Habitats - Buy Conservation Credits


For purchasing Conservation Credit(s)
You will receive
a copy of the John Audubon Multimedia CD
A replica of the complete (1840-1844)
James Audubon's Birds of America

You will also receieve a bluebird house for each Conservation Credit purchased and a 20% off coupon to be used on the A Bird's Home website!




Conservation Certificates

The Registry of Nature Habitats - Mission Statement

The Registry of Nature Habitats is dedicated to the preservation of land that, over time, has been a site and home for complex ecosystems. The Registry advocates preservation of these lands and its inhabitants, environmental education for community individuals and groups, and nurturing of these lands through restoration in order to conserve its natural resources for future generations.

Preserve

The Registry of Nature Habitats manages critical habitat, consisting of wetland, lowland, upland, forest and stream habitat, providing a home to wildlife species and plant species. As part of the mission to preserve these lands and its inhabitants, the Registry will continue to contract with owners of ecologically sensitive land as it becomes available.

Educate

The Registry of Nature Habitats is a "teaching ground," able to provide hands-on, interpretive learning experiences in areas such as ecology, botany, wildlife science, and geology, as well as the arts and humanities. The educational mission of The Registry of Nature Habitats is to teach an understanding and appreciaton of the environment, the invaluable lesson of land stewardship of our natural resources, and to expand the general knowledge of this habitat through scientific research. This will be accomplished through a year-round experiential, interactive approach, along with onsite and outreach activities including providing educational material both on this website, on media and through educational seminars. An on-site facility is in the design phase, which will house classrooms and an administrative space.

Nurture

Through several restoration projects, including the rebuilding of stream corridors, reintroducing native flora, and permitting only low-impact activities, the Registry is nurturing much land back to its natural state, undoing the damage of hundreds of years. The Registry of Nature Habitats restoration plan, developed with public and private partnerships and with local community support, will increase the land's value, enhance wildlife habitat, improve water quality, and preserve the integrity of the land's bio-diversity.

Renewable Energy

Promote the use of renewable and efficient energy technologies through education, training, workforce development, research, and project facilitation. The Registry supports clean energy development and energy conservation as the means to protect the environment, enhance public health, and save our nature habitats.

Conservation

We seek to educate people and provide innovative solutions that will help build a clean, more efficient world, by reducing energy consumption in a prudent way that does not threaten the natural balance that supports all life.




Duck Decoy Loon Lake Heartwood magnolia Coast

Wholesale Dealer Inquiries Invited

Home Page | Product Review Page | Join Our Affiliate Program | Links | Help

Favorite Bird Guestbook | All About Purple Martins
Contact Us | Report Site Errors | Suggestions/Comments | Privacy Notice
Voting Booth | Site Survey | Bird & Nature Link Resources | Bird & Nature Bulletin Board

Visit The Registry of Nature Habitats and apply to admit your property. Receive many benefits in addition to 10% discount on all products offered by A Bird's Home.

Tell A Friend About This Web Site:

Your Name
Your Email
Friend's Name
Friend's Email
A Quick Note

Privacy Info: We DO NOT store your name, your email, your friends name, or your friends email in any form. It is ONLY used to generate an email message.

Join Our Mailing List!
Email First Name Last Name

Visit Our Partners:

The Home Stores | A Coffee Bean's Home | Jim Miller Golf | Reigning Cats & Dogs | MSBL Sports | A Pond's Home | A Plant's Home | Sawkill Forest| An Instrument's Home


Bird feeders
(607) 746-3089
PO Box 321
Meridale, NY 13806
More information Help Desk

Copyright � 1997- Woodside Gardens
Last Updated: