Brand: SharpStar

SharpStar 15028HNT Hyperbolic Newtonian Reflector (15028HNT)

15028HNT

Brand: SharpStar

SharpStar 15028HNT Hyperbolic Newtonian Reflector (15028HNT)

15028HNT

$2,100.00 USD

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$2,100.00 USD

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What is a Backorder?
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Product Description

The launch of Sharpstar 15028HNT, a fast-focal-ratio hyperbolic Newtonian astrograph, fills up the existing service gap in domestic market. Compared with the conventional parabolic mirror, the process of producing, manufacturing and testing hyperbolic mirror is much more intricate.

The astrograph comes second to no one considering its rather fast focal ratio. The telescope is wrapped with durable carbon fiber material, artistically enhancing its appearance while sharply decreasing its weight. Sharpstar 15028HNT adopts Pyrex-alike glass, enabling the mirror to reach a quite stable reflectivity.

Both primary and secondary mirrors wear enhanced aluminum coating, thus keeping a reflective rate at more than 96%. The one-piece X-shaped strut of the secondary mirror keeps a solid and unbreakable structure. 2.5" rack-and-pinion focuser has a stronger load capacity and can be smoothly adjusted.

The delicately pierced handle bar is completely made from CNC-manufactured aluminum, which can be used as a base for the attachment of other accessories. The new design of the telescope handle can aesthetically and mechanically cater to the demands of enthusiasts.

A three-element corrector is laid in the optical path, enabling the whole optical system to better achieve full-frame imaging and control the vignette. The standard 55mm back-focus and M48×0.75 thread tapped on the focuser thoroughly prepare the telescope for most stock imaging devices and make sure the item in the objective lens can be perfectly projected onto the focal plane.

What can I see with a SharpStar 15028HNT Hyperbolic Newtonian Reflector (15028HNT)?

Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.

Jupiter with

25mm Eyepiece - 17x Magnification

(Sold Separately)

Jupiter with

10mm Eyepiece - 42x Magnification

Sold Separately

Jupiter with

5mm Eyepiece - 84x Magnification

Sold Separately

Moon with 25mm Eyepiece

17x Magnification

(Sold Separately)

Moon with 10mm Eyepiece

42x Magnification

Sold Separately

Moon with 5mm Eyepiece

84x Magnification

Sold Separately

Andromeda with 36mm Eyepiece

12x Magnification

Sold Separately

Andromeda with 25mm Eyepiece

17x Magnification

(Sold Separately)

Andromeda with 10mm Eyepiece

42x Magnification

Sold Separately

What's in the Box

  • Optical Tube Assembly
  • Protective cap
  • Tube rings
  • Dovetail plate
  • Handle

Specifications

Aperture 150mm
Focal length of primary mirror 420mm
Focal ratio of primary mirror f/2.8
Primary mirror type Hyperbolic reflective mirror
Primary mirror material PZ33 (similar to Pyrex glass)
Corrector three-element air-spaced refractive lenses
Minor axis of secondary mirror 70mm
Image circle 44mm
Field of view 6 degree
Main tube material High-end carbon fiber
Main tube outer diameter 195mm
Main tube length 445mm
Net weight 4.45kg
Gross weight 5.95kg (including protective cap, tube rings, handle and Losmandy-style dovetail plate)
Resolution 0.77 arc second
Focuser 2.5" w/ fine adjustment
Limiting visual magnitude 12.7
Back focus 55mm

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