Much lighter and more easily portable than its 8″ cousin, this 6″ telescope uses the same GOTO interface. It exhibits a minor amount of chromatic aberration, An HBG3 controller and joystick are available which allow control of the telescope via an Android phone.
T47 – Celestron C6 6″ SCT Read More »
At almost 10″ in diameter, this is the largest dobsonian in the library. This venerable telescope (made in Canada!) is mounted on a solid metal base and adjusts easily. It can fit in the back seat of a car, fully assembled, which is quite unusual for a large Dob. It’s a really good telescope, with stars showing nice and crisp. The optical finderscope is somewhat awkward to use since the tube is relatively short.
T46 – Omcon 620D 10″ Dobsonian Read More »
This tiny all-in-one astrophotography telescope works with your cellphone to create beautiful images of the night sky. It is simple to set up and easy to use. It does all the work for you. A great introduction to astrophotography.
T39 – ZWO Seestar S50 automated imager Read More »
This GOTO telescope with very good optics was produced at an affordable price point. The tripod and mount are undersized, so it is sensitive to wind and takes a while for vibrations to settle down. At 4″ in diameter it has sufficient light-gathering ability to see a great many objects, yet it is not very sensitive to atmospheric turbulence that can ruin the views in larger telescopes. It has a few too many parts to be considered grab-and-go, but it is quite light and easy to set up.
T34 – Celestron 102GT 4″ refractor Read More »
Celestron has made a great many fine telescopes, but some models really stand out. The white-tube C5 is one of those. The optics are very sharp, and the portability is outstanding. Place the mount with its built-in wedge on a flat surface like a picnic table, orient it roughly north/south, and the built-in motor drive will follow objects in the sky faithfully for many minutes. The 9V battery will power it for up to 50 hours.
T32 – Celestron C5+ tabletop SCT Read More »
This versatile rich field telescope is quick to set up and simple to use.
It is a great first telescope. It has very little chromatic aberration, and its wide field of view is quite crisp and provides fine views of star fields and the moon. It is not quite as well suited for viewing the planets and smaller deep sky objects. It is rather short, which can make viewing of objects which are low in the sky rather awkward. Like all reflectors it can be somewhat counter-intuitive when trying to center the view on an object.
The base has a handle that makes it quite easy to carry. The tube has a handle to make it easy to point.
T27 – SkyWatcher 8″ Dobsonian Read More »
The GoTo function can be driven by computer software such as Stellarium. Includes a declination wedge.
T08 – Meade 8″ SCT Read More »
This featherweight travel telescope has quite acceptable optics on a very shaky mount. It packs into the included small backpack. Lenses are plastic, the finderscope is not necessary, and the whole thing threatens to blow away if there is some wind, but it is quite usable as a telescope.
T25 – Travelscope 70mm refractor Read More »
Harvey has been around for many years. This high resolution telescope is quick to set up and simple to use. It has little chromatic aberration, and the quality of its field of view is quite comparable to the larger 8” reflectors in the telescope library. It provides nice views of nebulas, planets, and the moon. It lacks sufficient power for viewing smaller deep sky objects.
It is rather tall, and the tube is quite sturdily constructed. Unfortunately the one-arm Dobsonian mount is a lot shakier than ideal, and has a tendency to spring back when pointing the scope. Like all reflectors it can be somewhat counter-intuitive when trying to center the view on an object.
Comes with a deep sky filter for nebulae and galaxies.
T13 – Harvey, the 6″ Dobsonian Read More »
This is versatile telescope with very little chromatic aberration. Its wide field of view is quite crisp and provides fine views of star fields and the moon. It is not quite as well suited for viewing the planets and smaller deep sky objects. It is rather short, which can make viewing of objects which are low in the sky rather awkward. Like all reflectors it can be somewhat counter-intuitive when trying to center the view on an object.
The base has a handle that makes it quite easy to carry, but it is still large and cumbersome.
T21 – SkyWatcher 8″ Dobsonian Read More »
This versatile rich field telescope is quick to set up and simple to use. It is a great first telescope. It has very little chromatic aberration, and its wide field of view is quite crisp and provides fine views of star fields and the moon. It is not quite as well suited for viewing the planets and smaller deep sky objects. It is rather short, which can make viewing of objects which are low in the sky somewhat awkward. Like all reflectors it can be a little counter-intuitive when trying to center the view on an object.
T07 – SkyWatcher 8″ reflector Read More »
This older reflector provides good views of rich fields and expansive star clusters. It is relatively short and easy to set up and carry. It is most comfortable to use when sitting on a chair.
On the downside, it can be difficult to find objects because of lack of a finderscope and the ergonomics. Planetary and nebula views are not the best, and it is somewhat difficult to achieve sharp focus. Like all reflectors it can be somewhat counter-intuitive when trying to center the view on an object.
Eyepiece insertion is a little unusual. The eyepieces are pressure-fit into the eyepiece holder, and consequently there is no need for the retaining screws found on other telescopes. Lined up perfectly an eyepiece will slide in smoothly and stay firmly in place.
T11 – Coulter 8″ Dobsonian Read More »
This unusual pick-up-and-go elbow telescope is easy to transport and a joy to use. It’s a wide-field right-angle refractor married to a Dobsonian mount. The objective is almost 5” across, and it has a single fixed eyepiece. Telescopes don’t get much simpler than this, nor easier to use. Pull out the eyepiece for coarse focus, twist it for fine focus control. The field of view is about one quarter that of 7×50 binoculars and rivals that of many larger telescopes. The stars are crisp, with very little distortion until the edge of the view.
Unlike all other designs of telescopes, the eyepiece always remains at the same height no matter where the telescope is pointed. The mount can be placed on a picnic table or attached to the optional tripod. Very suitable as a grab-and-go during winter. Highly recommended.
T04 – Rich-field elbow refractor Read More »
