Shelyak Spectrograph Lhires III

This high resolution spectrograph allows the observor to visually watch the solar spectra with a lot of fine details. This is an ideal instrument for clubs and associations who organize astronomy days for the public

Lhires III spectrograph has been designed for small telescope (typically 8" f/10 telescope) and is then perfectly adapted for backyard astronomy. It can be setup in numerous instruments and you can use several type of CCD camera, webcam, or SLR cameras to record your own spectra.

But Lhires III is also a perfect tool for studying the sky. Students from several universities are learning from this spectrograph. Its design is powerful but simple and one can easily open it to see inside. Assembling the spectrograph is also very educational. Easy to use, it allows practical astrophysic on small telescopes.

Lhires III can be used visually, which makes it a great educational tool during astronomy days and public observing sessions. Without a telescope, it enables the observor to watch, safely, solar spectra in very high resolution.

With a video camera or a webcam and a small instrument, Lhires III becomes a spectro-heliograph. One can then image the Sun in multiple wavelength (Ha, HeI, K...) using a scanning technique.

Lots of educational projects around the Doppler effect can be done such as::

• Jupiter or Saturn rotation
• Radial velocity of stars
• Star rotation: v.sin(i)
• Spectroscopic binaries
  
  

Easy to use
With the mirror slit, the Lhires III is very easy to use and allow to center and maintain the target into the slit with great precision. A simple webcam allow to guide on bright star. You get the full control of the operation during the exposure and you do not need a state of the art mount to do spectrography!

A multi usage instrument
Almost all CCD cameras, SLR cameras, or simple webcam can be mounted on a Lhires III.

Very convenient: optional grating and support are available to adapt in few seconds your resolution to your project. Fainter objects are accessibles: novae, bright comets... See our performance page