Celestron Dobson telescope N 76/300 Cometron FirstScope DOB (33281)

The 76mm aperture table-top telescope, introduced during the Year of Astronomy in 2009, offers bright and clear views of comets, star clusters, the Galaxy, and the Moon. Its wide field of view is particularly suited for observing extended objects like comets, which are difficult to fully capture with larger telescopes that have longer focal lengths and higher magnifications. Extended deep-sky objects such as the Orion Nebula and the North America Nebula also benefit from this telescope’s wide field of view.

Weighing just 2kg, the Cometron FirstScope is highly portable and can be used anywhere with a sturdy table or similar base. Its attractive design makes it a great decorative piece when stored on a shelf. This telescope is ready to use immediately—no assembly or setup is required.

Specifications

Optics:

• Type: Reflector

• Build: Newtonian

• Aperture: 76mm

• Focal Length: 300mm

• Aperture Ratio: f/3.9

• Resolving Capacity: 1.51 arcseconds

• Limiting Magnitude: 11.2 mag

• Light Gathering Power: 118x compared to the human eye

• Maximum Useful Magnification: 152x

• Tube Length: 250mm

• Tube Material: Steel

Reflector Details:

• Main Mirror Design: Parabolic

• Secondary Mirror Design: Planar

• Ventilation for Central Mirror: No

• Adjustable Mirrors: No

• Secondary Mirror Obstruction: 37%

Focuser:

• Type: Gear rack focuser

• Eyepiece Connection: 1.25"

Mount:

• Mounting Type: Dobsonian table-top mount

• GoTo Control: No

Included Accessories:

• Finder Scope: 5x24 finder scope for locating objects easily

• Eyepieces (1.25"): Kellner 20mm and Kellner 10mm

General Information:

• Series: FirstScope

• Total Weight: 1.95kg

Applications
This telescope is suitable for observing the Moon, planets, nebulae, galaxies, and nature observation. It is not designed for astrophotography or solar observation (unless used with an appropriate solar filter).

Recommended For
This telescope is perfect for beginners due to its simplicity and portability but is not intended for advanced users or permanent observatory setups.