Shelyak Star'Ex Low Resolution Optical Kit
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Shelyak Star'Ex Low Resolution Optical KitShelyak Star'Ex Low Resolution Optical KitShelyak Star'Ex Low Resolution Optical Kit

Shelyak Star'Ex Low Resolution Optical Kit

£625.00✓ 2 year warranty
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About this product

Model:  shelyak_starex_lr_optical
Part Number:  ES0032

Shelyak Star'Ex Low-Resolution Optical Kit

Star’Ex Low Resolution (LR) optical kit: Includes all the optical elements to make your own Star’Ex LR instrument and take your first star spectra.

Complementary near-infrared (IR) is available too.

With Star’Ex LR (Star’Explorer), assemble your own spectrograph to obtain the spectrum of low-brightness stars and objects such as comets, galaxies, and quasars!

A special feature of Star’Ex LR is its ability to show the entire visible spectrum (from blue to red) in a single shot.

Star’Ex is a project proposed by Christian Buil, in line with Sol’Ex. A dedicated site gives you all the necessary information to assemble and operate this instrument. You manufacture the parts in 3D printing (or have them made by a specialist), then assemble the instrument with the optical elements in this kit.

This kit includes all the optical elements needed to make a Star’Ex LR, including slit, grating, lenses, guide elements, etc.

You can find more information about the Sol’Ex & Star’Ex project here.

Additional Items, including 3D Printed Parts, ZWO Helical Focuser and CMOS Imaging Camera, are required.

Please Note: This is a DIY Assembly Kit, not a complete or assembled product. FLO will only accept 30-day returns on unopened and unused kits. 

Example of spectra obtained with a Star’Ex LR – VIS:

Example of the spectrum obtained with a Star’Ex LR – IR :

 

What's in the box

Star’Ex LR optical kit – VIS

  • [OP0158] 300 gr/mm grating blased at 500 nm
  • [OP0080] Two doublets with a diameter of 12.5mm and a focal length of 50mm
  • [OP0010] Mirror of 15x15mm thickness 3mm
  • [SE0116] Multi-length slit 4 positions of 15/19/23/35 µm
  • [OP0176] Doublet with a diameter of 25.4mm and a focal length of 80mm
  • [OP0182] VIS doublet optimised for visible range with a focal length of 80 mm

Optical kit (additional) Star’Ex LR – IR

  • [OP0167] 300 gr/mm grating blased at 1000 nm
  • [OP0184] Order filter of 25mm in diameter and 2mm in thickness
  • [OP0183] IR doublet optimised for infrared with a focal length of 80 mm

Specifications

  • Resolution @650 nm: R = 650 typical with a 23 micron slit (R = wavelength / spectral sharpness)
  • Wavelength range:
    For Star’Ex BR – VIS: 400 nm – 700 nm
    For Star’Ex BR – IR: 650 nm – 1000 nm
  • Internal reduction ratio: 1:1

Collimator and lens both have an 80mm focal length

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