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Spectrographs

A spectrograph takes the light from a slit, disperses it with a grating and focuses the spectrum onto a camera. Choosing one is mostly about resolving power: how finely it separates wavelengths. Low resolution covers the whole visible range for classification and transient follow-up. High resolution reveals line profiles, stellar winds and orbital motion in binary stars.

We carry the Shelyak Alpy 200 and 600, LISA, UVEX manual and motorized, Lhires III, eShel III, the handheld spectroscope, and optical kits for the Sol'Ex and SUNSCAN spectroheliographs and Star'Ex LR and HR spectrographs.

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Original price CA$1,389.00 - Original price CA$1,389.00
Original price
CA$1,389.00
CA$1,389.00 - CA$1,389.00
Current price CA$1,389.00

Shelyak Alpy 600 Spectroscope

Resolution Power of R~600 with the 25µm slit Spectral Resolution of approximately 1nm Fast F/4 optical design for high light throughput Multi-posi...

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Original price CA$1,389.00 - Original price CA$1,389.00
Original price
CA$1,389.00
CA$1,389.00 - CA$1,389.00
Current price CA$1,389.00
Original price CA$748.00 - Original price CA$748.00
Original price
CA$748.00
CA$748.00 - CA$748.00
Current price CA$748.00

Shelyak Optical kit for SUNSCAN spectroheliograph by STAROS Projects

Build the STAROS Projects SUNSCAN spectroheliograph Includes a 2400 lines/mm holographic grating Features a 2-position slit with 7 µm and 10 µm op...

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Original price CA$748.00 - Original price CA$748.00
Original price
CA$748.00
CA$748.00 - CA$748.00
Current price CA$748.00
Original price CA$593.00 - Original price CA$593.00
Original price
CA$593.00
CA$593.00 - CA$593.00
Current price CA$593.00

Shelyak Optical kit for Sol’Ex spectroheliograph

Build a high-resolution solar spectroheliograph Achieves 0.03 nm resolution at 650 nm with 10 µm slit Tunable across the 400 nm to 700 nm visible ...

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Original price CA$593.00 - Original price CA$593.00
Original price
CA$593.00
CA$593.00 - CA$593.00
Current price CA$593.00
Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00

Shelyak Complement Cable for UVEX Calibration

Connects UVEX Motors and Calibration Modules Enables Automated Light Source Control Replacement or Spare Cable For the Shelyak UVEX Motors Module ...

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Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00
Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00

Shelyak Argon-Neon Calibration Lamps for Lhires III (Set of 3)

Set of 3 Ne/Ar (Argon-Neon) Calibration Lamps Designed Exclusively for the Shelyak Lhires III Spectrograph Provides More Emission Lines in the Blu...

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Original price CA$85.00 - Original price CA$85.00
Original price
CA$85.00
CA$85.00 - CA$85.00
Current price CA$85.00
Original price CA$752.00 - Original price CA$752.00
Original price
CA$752.00
CA$752.00 - CA$752.00
Current price CA$752.00

Shelyak Optical kit for Star'Ex HR spectrograph - complete set

Achieve spectral resolutions from R=700 up to R=30,000 Covers the visible spectrum with a 400 nm to 700 nm wavelength range Features a high-disper...

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Original price CA$752.00 - Original price CA$752.00
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CA$752.00
CA$752.00 - CA$752.00
Current price CA$752.00
Original price CA$713.00 - Original price CA$713.00
Original price
CA$713.00
CA$713.00 - CA$713.00
Current price CA$713.00

Shelyak Optical kit for Star'Ex LR spectroscope - IR complement

Extends Star'Ex LR spectroscope range to 650 nm – 1000 nm Achieves a spectral resolution of R=650 with a 23-micron slit Designed for DIY 3D-printe...

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Original price CA$713.00 - Original price CA$713.00
Original price
CA$713.00
CA$713.00 - CA$713.00
Current price CA$713.00
Original price CA$840.00 - Original price CA$840.00
Original price
CA$840.00
CA$840.00 - CA$840.00
Current price CA$840.00

Shelyak Optical kit for Star'Ex LR spectroscope

Build a complete Star'Ex Low Resolution spectroscope Achieves a typical resolution of R=650 at 650 nm Designed for the visible spectrum from 400 n...

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Original price CA$840.00 - Original price CA$840.00
Original price
CA$840.00
CA$840.00 - CA$840.00
Current price CA$840.00
Original price CA$247.00 - Original price CA$247.00
Original price
CA$247.00
CA$247.00 - CA$247.00
Current price CA$247.00

Shelyak Optical kit for Star'Ex HR spectrograph - additional kit for Sol'Ex

Enables spectral resolution up to R=30,000 Covers the visible spectrum from 400 nm to 700 nm Designed for DIY 3D-printed spectrograph projects Int...

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Original price CA$247.00 - Original price CA$247.00
Original price
CA$247.00
CA$247.00 - CA$247.00
Current price CA$247.00
Original price CA$504.00 - Original price CA$504.00
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CA$504.00
CA$504.00 - CA$504.00
Current price CA$504.00

Shelyak Alpy 200 Optical Core Module

Converts an Alpy 600 into an Alpy 200 Spectrograph Resolving Power of R~130 with a 23µm slit Fast F/4 Aperture for high light throughput Optimized...

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Original price CA$504.00 - Original price CA$504.00
Original price
CA$504.00
CA$504.00 - CA$504.00
Current price CA$504.00
Original price CA$1,456.00 - Original price CA$1,456.00
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CA$1,456.00
CA$1,456.00 - CA$1,456.00
Current price CA$1,456.00

Shelyak Alpy 200 Spectroscope

Resolving power of R~130 optimized for faint targets Fast F/4 optical design covering 375 nm to 750 nm Multi-position slit with 25µm, 50µm, 100µm,...

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Original price CA$1,456.00 - Original price CA$1,456.00
Original price
CA$1,456.00
CA$1,456.00 - CA$1,456.00
Current price CA$1,456.00
Original price CA$192.00 - Original price CA$192.00
Original price
CA$192.00
CA$192.00 - CA$192.00
Current price CA$192.00

Shelyak Handheld Spectro

Convenient Dimensions: 115 x 25mm Visual Use Only for Bright Light Sources Ideal for Educational and Classroom Use Reveals Emission and Absorption...

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Original price CA$192.00 - Original price CA$192.00
Original price
CA$192.00
CA$192.00 - CA$192.00
Current price CA$192.00
Original price CA$7,432.00 - Original price CA$7,432.00
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CA$7,432.00
CA$7,432.00 - CA$7,432.00
Current price CA$7,432.00

Shelyak LISA Spectroscope (VIS)

Designed for faint object spectroscopy at low resolution Resolving power of R~1,000 with the included 23 µm slit Optimized for f/5 optical systems...

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Original price CA$7,432.00 - Original price CA$7,432.00
Original price
CA$7,432.00
CA$7,432.00 - CA$7,432.00
Current price CA$7,432.00
Original price CA$15,573.00 - Original price CA$15,573.00
Original price
CA$15,573.00
CA$15,573.00 - CA$15,573.00
Current price CA$15,573.00

Shelyak eShel III Spectroscope

Professional-level fiber-fed echelle spectroscope module Resolving Power (R) of 10,000 Wide spectral range from 390nm to 750nm Utilizes diffractio...

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Original price CA$15,573.00 - Original price CA$15,573.00
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CA$15,573.00
CA$15,573.00 - CA$15,573.00
Current price CA$15,573.00
Original price CA$9,941.00 - Original price CA$9,941.00
Original price
CA$9,941.00
CA$9,941.00 - CA$9,941.00
Current price CA$9,941.00

Shelyak UVEX Motorized Spectroscope

Full remote control of grating, focus, and calibration Achromatic design covers a 350 nm to 1µm spectral range Resolving power of R=1700 with the ...

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Original price CA$9,941.00 - Original price CA$9,941.00
Original price
CA$9,941.00
CA$9,941.00 - CA$9,941.00
Current price CA$9,941.00
Original price CA$8,439.00 - Original price CA$8,439.00
Original price
CA$8,439.00
CA$8,439.00 - CA$8,439.00
Current price CA$8,439.00

Shelyak UVEX Spectroscope

Spectral range from 350 nm (UV) to 1 µm (IR) Resolving power of R=1710 with included 600 l/mm grating Multi-position slit with 25µm, 50µm, 100µm, ...

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Original price CA$8,439.00 - Original price CA$8,439.00
Original price
CA$8,439.00
CA$8,439.00 - CA$8,439.00
Current price CA$8,439.00
Original price CA$31,049.00 - Original price CA$31,049.00
Original price
CA$31,049.00
CA$31,049.00 - CA$31,049.00
Current price CA$31,049.00

Shelyak eShel III Complete System

Resolving Power of R > 10,000 390 nm to 700 nm Spectral Range Captures Diffraction Orders 32 to 53 50µm Target and 200µm Calibration Fibers Inc...

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Original price CA$31,049.00 - Original price CA$31,049.00
Original price
CA$31,049.00
CA$31,049.00 - CA$31,049.00
Current price CA$31,049.00
Original price CA$7,987.00 - Original price CA$7,987.00
Original price
CA$7,987.00
CA$7,987.00 - CA$7,987.00
Current price CA$7,987.00

Shelyak Lhires III Spectroscope

Resolving power of R=18,000 with the included 2400 lines/mm grating Selectable wavelength range from 400 nm to 750 nm Optimized for F/10 telescope...

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Original price CA$7,987.00 - Original price CA$7,987.00
Original price
CA$7,987.00
CA$7,987.00 - CA$7,987.00
Current price CA$7,987.00

Which Spectrograph?

  • Alpy 600 and Alpy 200: Compact, modular, low resolution. The most common first slit spectrograph, efficient on faint targets.
  • LISA: Low to medium resolution with excellent throughput, popular for transient and nebula work.
  • UVEX: Interchangeable gratings from 150 to 1800 lines/mm, with a motorized version for remote use.
  • Lhires III: Littrow design with gratings up to 2400 lines/mm for high-resolution line profiles.
  • eShel III: Fibre-fed echelle for high resolution across a wide range in a single exposure.
  • Sol'Ex, SUNSCAN and Star'Ex kits: Optical kits for 3D-printed instruments built by the observer. A rewarding, affordable project.

Spectrographs: Frequently Asked Questions

Do I need a guiding module?

For slit spectrographs, yes. You need to keep the star on a slit only a few tens of microns wide.

How do I calibrate wavelength?

With a calibration lamp, usually argon-neon, recorded through the same optical path. See calibration.

Choosing a spectrograph?

Send us your telescope and research interest. We will match the instrument and accessories.