CELESTRON C6 Optical Tube Assembly (CGE Dovetail) Telescope 150/1500mm

SKU: 13060

GTIN: 50234101097

Category: Telescopes

In Stock
Ready for shipment: 0 - 1 business days (DE - int. shipments may differ)

€ 1.049,00

incl. 19% VAT (All Non-EU Countries tax-free or with a valid EU Vat. No.) , (Paket/Parcel)

6" Schmidt-Cassegrain Optical Tube Assembly (OTA)
Features Celestron's premium patented StarBright XLT optical coatings
1500 mm focal length (f/10)
Fastar compatible
Tube constructed of durable and lightweight aluminum
Includes: 25mm eyepiece (60x), 6x30 optical finderscope, star diagonal, 1.25” visual back, CG-5 dovetail bar
Made by Celestron, USA

Includes or respectively is compatible with the following Celestron Technologies:

pcs.

CELESTRON C6 Optical Tube Assembly (CGE Dovetail)

6" Schmidt-Cassegrain Optical Tube Assembly (OTA)
Features Celestron's premium patented StarBright XLT optical coatings
1500 mm focal length (f/10)
Fastar compatible
Tube constructed of durable and lightweight aluminum
Includes: 25mm eyepiece (60x), 6x30 optical finderscope, star diagonal, 1.25” visual back, CG-5 dovetail bar
Made by Celestron, USA

Includes or respectively is compatible with the following Celestron Technologies:

Description

The Celestron C6-A OTA is a great multi-use optical tube with a 1500 mm focal length and a focal ratio of f/10. It offers 40% more light gathering than a 5” Cassegrain telescope. The Celestron C6-A features Celestron’s patented StarBright® XLT optical coatings, which visibly increase contrast and light transmission for brighter deep space images and shorter exposure times. With StarBright XLT, you’ll be able to discern subtle details while viewing the Moon and planets as well as faint galaxies and nebulae.

The Celestron C6-A can be mounted on a multitude of computerized telescope mounts thanks to its CG-5 dovetail bar. But it also works well when mounted on a basic manual altazimuth mount for night sky viewing or as a terrestrial spotting scope during the day.

The Celestron C6-A has the best balance of portability, handling ease, light gathering ability and price ever offered to the amateur astronomer. It is an advanced level instrument that is as easy to use as any intermediate level - and most entry level - telescopes.

Fastar Technology

In 1997, CCDs were making a name for themselves in the astrophotography world, quickly supplanting traditional film photography thanks to their speed and convenience. This was the year that Celestron joined forces with the Santa Barbara Instruments Group (SBIG) to produce Fastar, a revolutionary add-on to Celestron’s hugely popular Schmidt-Cassegrain (SCT) optical system.

With Fastar, the SCT’s secondary mirror can be removed and replaced with a field-flattening lens assembly (sold separately by third party manufacturers) so that a CCD camera can be used in the front of the telescope at the f/2 focus of the instrument’s primary mirror. The potential of the Fastar system is staggering: exposures are 25 times shorter than if the camera was placed at the instrument’s native f/10 focus. Imagers can capture galaxies and nebulae with exposures of just 30 seconds.

StarBright XLT coatings

StarBright XLT is Celestron’s revolutionary optical coating system. It consistently outperforms all other coatings in the commercial telescope market. There are three major components that make up our StarBright XLT high-transmission optical system design:

Unique enhanced multi-layer mirror coatings made from precise layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and SiO2 (silicon dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both imaging and visual observing.
Multi-layer anti-reflective coatings made from precise layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium—a rare element that costs nearly $2,000 per kilogram—gives us a wider band pass than the titanium used in competing coatings.
High-transmission water white glass is used instead of soda lime glass for the corrector lens. Water white glass transmits about 90.5% of light without anti-reflective coatings; that’s 3.5% better than uncoated soda lime glass. When water white glass is used in conjunction with StarBright XLT’s anti-reflective coatings, the average transmission reaches an astonishing 97.4.

These three components make StarBright XLT one of the finest coatings available.

Optical Tube Info
Optical Design	Schmidt-Cassegrain
Aperture	150mm (6")
Focal Length	1500mm (59")
Focal Ratio	f/10
Focal Length of Eyepiece 1	25mm (0.98")
Magnification of Eyepiece 1	60x
Finderscope	6x30
Star Diagonal	1.25" Star Diagonal
Optical Tube	Aluminum
Highest Useful Magnification	354x
Lowest Useful Magnification	21x
Limiting Stellar Magnitude	13.4
Resolution (Rayleigh)	0.93 arc seconds
Resolution (Dawes)	0.77 arc seconds
Light Gathering Power (Compared to human eye)	459x
Secondary Mirror Obstruction	56mm (2.2")
Secondary Mirror Obstruction by Diameter	37%
Secondary Mirror Obstruction by Area	14%
Optical Coatings	StarBright XLT
Optical Tube Length	406mm (16")
Optical Tube Diameter	180mm (7.12")
Optical Tube Weight	10 lbs (4.54 kg)
Dovetail	CG-5 Dovetail bar