Skywatcher

Dobsonian telescopes offer an incredible aperture-to-price ratio. The Dobsonian mount, popularized by John Dobson in the 1970.s, is a simple and efficient method of mounting a Newtonian reflector, based on the alt-azimuth principal. Fast and easy to set up, the Dobsonian mount consists of a box-type mounting which allows the telescope to pivot in altitude, while the box itself is rotated on a base in azimuth. The secret of the design is to correctly balance the optical tube and use frictional materials which allow it to be moved easily when nudged but to stay in position when not. The mount is designed to be driven by hand as opposed to slow motion controls. Sky-Watcher Dobsonians provide excellent all round performance for the observation the moon and planets and deep-sky objects such as galaxies and nebulae. Characteristics: Aperture 254mm, focal lenght 1200mm, f/4.7 Central obstruction appr. 27% 2" focuser with reduction 1¼" Resolving power: 0.59" Retractable upper tube unit Parabolic mirror and secondary mirror coated with Radiant™ Aluminum Quartz (RAQ™) coating, with up to 94% reflectivity and optimum durability and long-term stability Total weight appr. 44kgs Delivery: 10" Dobsonian telescope w/ Flex-Tube system 2" focuser with reduction 1¼" 9x50 finder with dovetail connector 25mm & 10mm 1¼" Super eyepieces

Item condition: new, but not original packed

Skywatcher Dobson Skyliner 16" F/4,4

Item condition: new and original packed

Skywatcher SupraTrak autotracking AZ mount incl. tube ring with 89mm diameter

Item condition: new, but not original packed

STAR DISCOVERY 90I with Wifi AZ Goto Mount

Item condition: new and original packed

Celestron 200 mm Newtonian with focal ratio 1:5 on EQ5 Mount A universal telescope with much power and comfort The parabolic primary of this 8" Newtonian mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view. This scope is great for intermediate visual observers and beginning astroimagers looking for a large aperture with lots of light-gathering power. As the telescope is meant for users who already have a suitable mount, there is no mount included! The optics An 8" mirror collects a lot of light, increasing the perception of dim celestial objects. The relatively short focal length and the 2" focuser have a positive effect when viewing large objects, as the latter can be seen completely in the large true field of view. Because of the large focal ratio, "hard" nebula filters can be applied when using eyepieces of long focal lenght, resulting in a clearly enhanced contrast. On the other hand, the parabolic primary mirror allows high magnifications - helpful for moon, planets, planetary nebulae ans smaller galaxies. The low obstruction of only 26% gives more contrast, thus having advantages when observing planets. Of course, the fast optics has also advantages in photography, is it reduces the exposure times. The coma, typical for Newtonians, can be eliminated by a coma corrector, achieving high sharpness even in the corners of the image. General Features 8" (200 mm) f/5 optical design with 2" focuser gives excellent wide field views Parabolic primary mirror minimizes spherical aberration to produce a better image Low obstruction gives high contrast Scope of Delivery Telescope Optical Tube Assembly with rings and dovetail bar 9x50 Finderscope 1.25" Eyepiece 20 mm Skywatcher EQ-5 Mount

Item condition: new and original packed

Skywatcher Star Adventurer Mini WLAN

Item condition: new, but not original packed

Skywatcher 1,25" variable Polarizing filter

Item condition: new and original packed