Daystar 80mm f/6 Achromatic Refractor
- 80mm Aperture
- f/6 Focal Ratio
- 480mm Focal Length
- Achromatic Refractor Design
- Rack & Pinion Focuser
Simulate the exact field of view of the Daystar 80mm f/6 Achromatic Refractor with your specific telescope.
Launch Visual Assistant
Simulate the exact field of view of the Daystar 80mm f/6 Achromatic Refractor with your specific telescope.
Launch Imaging AssistantThe Daystar 480 refractor combines an 80mm achromatic objective with a fast f/6 focal ratio, delivering a 480mm focal length in a compact optical tube assembly. This design prioritizes wide, rich fields of view, making it an ideal instrument for scanning the Milky Way or framing large deep-sky objects.
With its 480mm focal length, the Daystar 480 provides expansive views of the night sky, easily fitting large targets like the Andromeda Galaxy (M31) or the Pleiades (M45) into a single field. The f/6 focal ratio delivers bright images, making it well-suited for observing extended nebulae and large open star clusters.
As an achromatic refractor, this telescope offers excellent value and utility for its intended purpose. However, the design will exhibit some chromatic aberration, or "false color," on extremely bright targets like Jupiter, Venus, and the lunar limb. This is an inherent trade-off for its wide-field capability and portability.
The 80mm aperture and short focal length make the Daystar 480 an excellent "grab-and-go" telescope for spontaneous observing sessions where setting up a larger instrument is impractical. Its simple, robust construction is built for utility, whether mounted on a light alt-azimuth mount for visual use or used as a guide scope for a larger imaging system.
The scope includes a rack-and-pinion focuser, a reliable and straightforward mechanism for achieving sharp focus with standard eyepieces or a lightweight guide camera. This combination of features makes the Daystar 480 a versatile optical tube for observers who need a wide-field instrument or a dependable autoguiding platform.
The Daystar 480 has a focal length of 480mm. This is calculated from its 80mm aperture and f/6 focal ratio (80 x 6 = 480).
Yes, some color fringing (chromatic aberration) is expected, especially on very bright objects like the Moon, Venus, and Jupiter. The Daystar 480 is an achromatic refractor, and this is a known characteristic of the design, particularly at a fast f/6 focal ratio. It is designed for low-to-medium power, wide-field views where this effect is less noticeable.
The Daystar 480 excels at viewing large deep-sky objects that require a wide field to be seen in their entirety. Excellent targets include:
The Daystar 480 is primarily intended for visual observation and as a guide scope. While you can take images of the Moon or wide star fields, its achromatic optics are not ideal for serious deep-sky imaging, which requires apochromatic (APO) or ED glass to prevent color fringing around stars.
The Daystar 480 is an excellent choice for this scenario. Its 480mm focal length provides a wide field of view, making it easy to find suitable guide stars. It is a good match for the typical ~2000mm focal length of an 8" SCT, providing precise guiding corrections without being overly sensitive to atmospheric seeing.
While you can see Jupiter and its moons with the Daystar 480, it is not optimized for high-power planetary viewing. The fast f/6 achromatic optics will show noticeable chromatic aberration at high magnifications, which can soften fine details in cloud bands. An apochromatic refractor or a longer focal ratio reflector would be a better choice for dedicated planetary observation.
| Aperture | 80mm |
| Focal Ratio | f/6 |
| Focal Length | 480mm |
| Optical Design | Achromatic Refractor |
| Focuser | Rack & Pinion |
Daystar 480 80mm Refractor OTA
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