Celestron Newtonian Telescopes - by Telescope-Service

Astro100EQ3.jpg (6961 Byte)

Celestron is not only known for their high-tech Schmidt-Cassegrain telescopes, but also for their range of good quality and supremely affordable telescopes which we have compiled under the name of "Celestron Astro".

Telescopes of this line are not overloaded with high-tech gimmicks. Instead, they offer an excellent value for money, good optics and solid mechanics.

All Celestron Newtonians have parabolical primary mirrors - an absolute requirement for really sharp images.

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A classical Newtonian with 150mm Aperture and 750mm Focal Length is in our opinion one of the most versatile telescopes imaginable.
In practically every possible field of amateur astronomy the Celestron Newtonian 150/750mm offers a great performance.
At the same time the telescope is quite easy to use, can be upgraded with lots of extras, and is very portable. All this makes the Celestron Newtonian an excellent entry-level telescope.

Visual Use
A 6" Newtonian offers lots of light for serious deep-sky observing. Countless gas nebulae will be displayed in beautiful detail, star clusters are ripe with stars. Hundreds of galaxies are within reach of this telescope.

With an aperture of 150mm the telescope can be efficiently used with nebular filters to enhance contrast.

At the same time the telescope is well suited for objects within our solar system. The moon and the planets are displayed in plenty of detail - the moon in particular feels as if you actually were there! No false colour will disturb you (unlike cheap refractors) and the parabolical mirror offers a good image sharpness.

Astro-Imaging
One of the strong points of this Newtonian. You can take photos both of the moon and planets and of star clusters, nebulae and galaxies. The short focal ratio of f/5 results in relatively short exposure times. We carry the needed adaptors for most common cameras, both for prime focus astro imaging and for eyepiece projection.

The telescope already has a T-mount thread to accept SLR cameras. You only need a T-ring for the adaptation. The thread is positioned so that you will actually be able to reach focus - not every Newtonian of that size offers this. The focuser is solidly made of metal and has a locking screw to fix the focuser in position once you have attained focus.

For long exposure times we recommend to use a guide scope parallel to the Newtonian. This guide scope is used to correct the tracking error that each mount has. Please ask for a recommended setup!

Tip: If you are into astro-imaging you should choose a sufficiently stable equatorial mount that has power reserves for heavy accessories!

Accessories:
20mm Plossl - this multi-coated eyepiece offers a good image sharpness and contrast
Tube Rings made of aluminium. With piggy-back camera holder on one of the tube rings.
6x30 Finderscope with quick release finder bracket.

Specifications:
Aperture 150mm ( 6" ) / Focal Length 750mm / Focal Ratio f/5
Maximum useful magnification - approximately 230x
Minimum useful magnification - 23.4x

Features:

- good quality metal focuser with camera adaptation.
- 6x30 quick release finderscope.
- thin (0.5mm) secondary mirror spider vanes for maximum image sharpness.
- parabolical primary mirror with center marking for easy collimation.
- diffraction-limited optics through parabolical primary mirror. No correcting lens is needed.

You can choose between several different mounts for this Celestron Newtonian, of you can buy only the optical tube assembly alone:

Celestron 150/750mm on Sky View or EQ-3

The Sky View mount (you can also choose the EQ-3 at the same price) offers good stability for visual use and short exposure astro-imaging. A motor drive is available (optional). You can even get a polar scope for the mount. A good entry-level choice for countless joyful observing hours.

Further Information on the SkyView

Item No.	Short description	Price - SEK incl. VAT
CEN 150 SV	Newtonian 150/750mm on SkyView or EQ-3 equatorial mount. With accessories as described above.	No longer available

Collimation tools and other helpful accessories

Celestron 150/750mm on TS Astro 5 DX with illuminated polar scope and steel tube tripod

The TS Astro-5 DX is the perfect match for this Newtonian for astro-imaging. It has enough power reserves for heavy accessories like tele lenses, a guide scope, ... You will even be able to use a larger telescope on the Astro-5, which means that you can later upgrade your equipment.
A dual axis motor drive, special controllers for astro-imaging, and even a GoTo drive can be added as an upgrade later.

Further Information on the TS Astro-5 DX

Item No.	Short description	Price - SEK incl. VAT
CEN 150 Astro5	Newtonian 150/750mm on TS Astro-5 DX equatorial mount. With accessories as described above.	No longer available

Collimation tools and other helpful accessories

Celestron 150/750mm on Celestron CAM GoTo Mount

The Celestron CAM is a powerful GoTo mount - once set up and alligned it will find the objects for you at the push of a few buttons. The 40,000 object database - actually more than can even be seen with this telescope - means that observing will never get boring.

A nice side-effect: The mount has an extreme mechanical stability and a good tracking precision for serious astro-imaging.

Further Information on the Celestron CAM GoTo Mount

Item No.	Short description	Price - SEK incl. VAT
C31054	Newtonian 150/750mm on Celestron CG-5 GoTo mount. With accessories as described above.	9475,-

Collimation tools and other helpful accessories

Celestron 150/750mm Optical Tube Assembly

If you already own a good mount you can buy the telescope as optical tube assembly, i.e. without a mount.

Scope of Delivery:
optical tube, focuser, 6x30 quick release finderscope, tube rings. No eyepieces, no further accessories. Dovetail plates are available optionally.

Item No.	Short description	Price - Euros incl. VAT
CEN 150 OTA	Newtonian 150/750mm optical tube, tube rings, finderscope. No further accessories.	1995,-

Collimation tools and other helpful accessories

The TS Eyepiece and Accessory Case isn't just an assortment of randomly picked eyepieces, we have put a lot of thoughts into choosing a fine range of eyepieces that will work with nearly all telescopes. These great eyepieces are included in the TS eyepiece and accessory case:

- three excellent quality TS Super Plossl eyepieces
- one TS wide angle eyepiece
- our excellent TS Barlow lens (2x/1.5x)
- five carefully chosen TS colour filters and one grey moon filter (not just a cheap green filter)
- an adaptor for focal and eyepiece projection astro-imaging

All comes in a beautiful, foam-lined aluminium case .......... Link to further information

Please send requests or online orders to: sales@teleskop-service.se

Celestron Astro Newtonian 200/1000mm

The Celestron 200/1000mm Newtonian on TS Astro-5 equatorial mount - a nice combination for primarily visual use.

Probably one of the most common large aperture Newtonians for all applications. The 200/1000mm Newtonian offers a good performance no matter which field of practical amateur astronomy you are into.

Visual Use
This large aperture Newtonian offers real deep sky views. The double cluster h+x Persei is ripe with hundreds of densely clustered stars. The Plejades aren't only a couple of stars, but you will even see the gas clouds the young stars were born in. The Lagoon nebula shows numerous details and the Trifid nebula will show where its name comes from.

All kinds of nebular filters can be used to boost contrast. Due to the large aperture the image will remain bright even in narrowband filters.

The relatively small secondary mirror and thin spider vanes allow for a good contrast even on the planets and the moon. Given good seeing conditions the Cassini division in Saturn's rings can be seen, details in Saturn's atmosphere, even details within Jupiter's great red spot can be discerned. With the right filters even Mars can be seen in lots of detail.

Astro-Imaging
The 200/1000mm Newtonian is a very powerful telephoto lens for serious astro-imaging. Countless galaxies can be depicted revealing their spiral structure, gas nebulae are very colourful. We recommend to use a guide scope for longer exposure times. Also you should choose a sufficiently sturdy equatorial mount for serious astro-imaging. The Celestron ADM (left image) is a good minimum mount for this requirement.

Obviously you can also take good images of the moon and the planets. For this we recommend to use a webcam and digital image processing.

Specifications and Accessories:

Aperture / Focal Length	200mm / 1000mm - f/5
Tube Weight	approx. 9 kgs
Primary Mirror	parabolical
Limiting Magnitude, visual	14.7 mag
Theoretical Resolution	0.57"
Focuser	2" metal focuser, 1.25" adaptor, T2 adaptor
Finderscope	8x50 quick release finderscope
Eyepiece	Plossl eyepiece 20mm

Prices

Item No.	Short description	Price - SEK incl. VAT
CEN 200 Astro5	Newtonian 200/1000mm on TS Astro-5 DX equatorial mount with steel tube tripod, illuminated polar scope, accessories as described above.	4995,-
C31061	Newtonian 200/1000mm on sturdy equatorial mount Celestron ADM with dual axis motor drive and polar scope	6350,-
C31062	Newtonian 200/1000 on Celestron CAM GoTo mount with 40,000+ object database	10950,-
CEN 200 OTA	Newtonian 200/1000mm optical tube, tube rings, finderscope. No mount, no further accessories.	3795,-

Collimation tools and other helpful accessories

Please send requests or online orders to: sales@teleskop-service.se

Celestron Astro Newtonian 250mm/1200mm

The Celestron 250/1200mm Newtonian on Celestron ADM equatorial mount - a nice combination for purely visual use.

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Celestron Newtonian 250/1200mm
on Celestron CAM GoTo Mount .. Further Information

A very powerful, large aperture Newtonian telescope. Its primary use is of course deep sky observations where the large aperture will show much more detail than a smaller Newtonian could. The telescope has a parabolical primary mirror, thin spider vanes and a relatively small secondary mirror for good image sharpness and contrast. You can go up to approx. 400x magnification.

Visual Use
Several galaxies will reveal their spiral structure under a good, dark sky. Planetary nebulae aren't just tiny discs but will reveal plenty of detail. The bright globular cluster M13 is resolved into single stars to the center.

The telescope is of course also suited for observing the moon and the planets. Good seeing conditions are required for that, though. In calm nights the multitude of visible details will impress even experienced observers.

Astro-Imaging
This Newtonian is an extremely powerful "lens" for your camera. Thousands of objects are within its reach and will reveal many details. Exposure times are relatively short due to the fast focal ratio of f/5.

You do need a very sturdy mount for a telescope of this size, though. Even the EQ-6 should be set up at a place where the telescope is protected against wind. Under such conditions the EQ-6 will allow for good quality astro-imaging.

The moon and the planets are much easier to capture. The much shorter exposure times allow you to use less massive, less expensive mounts. We recommend to use a webcam and digital image processing for the best results.

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EQ-6 sturdy equatorial mount .. Further Information

GoTo Mount Celestron CAM
A powerful and very affordable GoTo mount for telescopes up to 10". ..... Further Information

Heavy Equatorial Mount EQ-6
This heavy mount carries the Newtonian with good stability for visual use, and even has some power reserves for astro-imaging. You can add heavy accessories.

A dual axis motor drive and a polar scope are included. If you plan to do long exposure astro-imaging you can choose one of the optional motor drive upgrades for a better tracking precision. The mount can even be upgraded with GoTo.

Accessories:
Kellner 20mm - 1.25"
Kellner 10mm - 1.25"
Finderscope

Eyepiece with rubber eyeguard, 50x magnification
Eyepiece with rubber eyeguard, 100x magnification
8x50 quick release finderscope

The maximum useful magnification is approx. 400x. But due to seeing conditions there are only a handful of nights each year where you can really use such high magnifications.

Item No.	Short description	Price - SEK incl. VAT
C11047	Newtonian 250/1200mm on Celestron ADM equatorial mount with adjustable height steel tube tripod and accessories as described above	11250,-
CEN 250 EQ6	Newtonian 250/1200mm on heavy equatorial mount EQ-6 with adjustable height steel tube tripod and accessories as described above. Incl. polar scope and dual axis motor drive.	12995,-
C11048	Newtonian 250/1200mm on Celestron CAM GoTo equatorial mount with 40,000+ object database. With adjustable height steel tube tripod and accessories as described above.	19995,-
CEN 250 OTA	Newtonian 250/1200mm optical tube, tube rings, finderscope. No mount, no further accessories.	6295,-

Collimation tools and other helpful accessories

Please send requests or online orders to: sales@teleskop-service.se

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Newtonian 150mm Aperture 750mm Focal Length an excellent low-cost entry level telescope with an astonishing performance	Newtonian 200mm Aperture 1000mm Focal Length Lots of light-gathering power - supremely affordable.	Newtonian 250mm Aperture 1200mm Focal Length The "Light Bucket". Offers an extremely large aperture at a very competetive price.