Hubble Optics 5-Star Artificial Star

To check and correct the collimation of telescopes, reflectors, catadioptric systems, and refractors, you need to perform a star test. However, for this, you need a star. Unfortunately, a real star is often unavailable due to poor weather conditions or location.

But even if a star were available, you would need a good tracking system because the star is constantly moving. Air turbulence can also affect your tests. Furthermore, the real star might not even reveal the true optical quality of your telescopes, preventing perfect collimation.

An artificial star is an excellent alternative to a real star. With an artificial star, star tests can be performed precisely at any time and anywhere. The problem with an artificial star, however, is that you need a star size suitable for your telescope and the respective focal ratio. A suitable star size is also necessary for different lighting conditions and different distances between the telescope and the artificial star.

The Hubble 5-Star artificial star is the perfect solution to this problem. It has 5 bright white LEDs with 5 precision pinholes (50/100/150/200/250 microns). With the Hubble 5-Star, you can test virtually any telescope, regardless of focal ratio, focal length, distance, or lighting conditions.

• You can instantly determine which star is best for your specific telescope at a given distance and ambient lighting, simply by using the smallest possible star that will still give you a clear, defocused image.
• You can also adjust the brightness of the stars by turning the LED cap.
• With an included magnetic mask, it is possible to hide 4 of the 5 stars.

With the Hubble 5-Star artificial stars, your telescopes are now easy to test and collimate!

Key Features

Hubble Optics quality for a reliable and fulfilling observation experience.

• Type: Collimator accessories
• Manufacturing technique: Artificial star

Main technical specifications