Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
Stress Free, Secure Transactions
You can trust purchasing and delivery with All-Star Telescope. All of our transactions are 100% secure and Level 1 PCI DSS compliant thanks to Shopify's ShopPay platform. For additional protection, we insure 100% of the value of every shipment we make. If it get's lost during shipment, we replace it. If it gets damaged during shipment, we replace it. We make sure your product arrives exactly as you would expect it to; we promise.
We also ensure privacy protection. We never keep any of your credit card information on file and any of your personal data is stored according to our policies.
30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
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
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 |
