90 Heritage Virtuoso Tabletop Dobsonian Features
- Perfect For Beginners
- 90mm High Contrast Maksutov-Cassegrain Optics
- Camera/Video Cruising up to 6 preset positions
- 5 Different Cruising Speed Modes
- Virtuoso™ Mount Stable Platform
- Can be upgraded to Go-To System
- 5 Years Sky-Watcher Limited Warranty
5 year manufacturer warranty (not transferable).
90 Heritage Virtuoso Tabletop Dobsonian Description
Sky-Watcher Heritage-90 Virtuoso Dobsonian Telescope
Four centuries ago, an Italian scientist, Galileo Galilei, introduced an elementary telescope that changed the science forever. His discoveries provided the solid evidence to disprove the Earth was the centre of the Universe. And now, to celebrate the International Year of Astronomy, Sky-Watcher is proud to present the commemorative edition of Newton’s Telescope – Heritage.
Designed to be fully functional telescope, this Sky-Watcher Heritage-90 Virtuoso Dobsonian Telescope is very simple and easy to use, an ideal gift for young astronomer. Equipped with a Virtuoso™ mount with Freedom-Find™ technology, it allows the telescope to be manually manoeuvred in either axis without disrupting the polar alignment; thus creating freedom and convenience to users using the telescope. Besides, the setup also offers camera/video cruising through six preset positions at five different speeds. This ensures smooth picture acquisition of the object without causing it to run off from the field of view.
Nonetheless, the Virtuoso mount can be further upgraded to a GO-TO system by installing the Synscan AZ GO-TO handset and cable.
Sky-Watcher Heritage-90 Virtuoso Dobsonian Telescope Features:
- Perfect For Beginners
- 90mm High Contrast Maksutov-Cassegrain Optics
- Camera/Video Cruising up to 6 preset positions
- 5 Different Cruising Speed Modes
- Virtuoso™ Mount Stable Platform
- Can be upgraded to GO-TO System
- 5 Years Sky-Watcher Limited Warranty
Optical Design
Maksutov-Cassegrain on Tabletop computerised Dobsonian base
The optical design of a telescope is a feature that defines what sort of observing the telescope is suitable for.
Optical Diameter
90mm
The aperture (diameter) of a telescope’s main lens or mirror. This describes how much light a telescope can grasp.
Focal Length
1250mm
The distance that the light has to travel between the aperture and the focal point. A smaller focal lengths will deliver a wider field of view.
F/Ratio
f/13.9
The relationship between the focal length and the aperture, larger f/numbers imply higher magnification.
Eyepieces
Super 10, 25mm
Short focal length (5-10mm) eyepieces generally provided high power magnifications.
Finder Scope
Red Dot
A low powered mini telescope with a wide field of view to assists with locating objects before observe through the main telescope.
Highest Practical Power
180x
Exceeding the Highest Practical Power will result in a fuzzy image.
Motors Resolution
2.42 arc sec
The smallest angular increment that a telescope mount's motor system can move.
Slewing Speed
8x, 16x, 64x, 400x, >2000x Max
The rate at which a telescope's mount can move the telescope's pointing direction.
Power Requirement
12v DC 1 Amp Power Supply
Power needed to run the mount.