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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Shelyak LISA Slit Holder

Shelyak LISA Slit Holder

by Shelyak
SKU SHK-SE0193
$143.00 - $143.00
$143.00
$143.00 - $143.00
$143.00
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  • Enables rapid interchange of spectroscopic slits
  • Designed specifically for the Shelyak LISA Spectroscope
  • Compatible with standard, wide, and photometric slits
  • Streamlines workflow for varied astronomical targets
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  • Description
  • FAQ
  • Warranty

  • LISA Slit Holder

    The Shelyak LISA Slit Holder is the essential accessory for adding operational flexibility to your LISA spectroscope. It provides the core mechanism for rapidly and easily swapping between different slits, allowing you to adapt your instrument's configuration in the field to match the scientific requirements of any target, from faint nebulae to bright variable stars.

    Interchangeable Slit System for the LISA Spectroscope

    This holder transforms the LISA from a single-slit instrument into a modular system. Instead of being locked into one slit width for an entire night, you can pre-load multiple slits into individual holders and exchange them in moments. This capability is critical for observers who need to switch between different types of spectroscopy during a single session.

    Adapt Your LISA for Different Scientific Targets

    The LISA Slit Holder is designed to accept a range of Shelyak slits, each optimized for a specific astronomical application. By using this holder, you can seamlessly switch between different observational modes.

    • Standard Slits: Use for general-purpose, high-resolution spectroscopy of stars and other point sources.
    • Wide Slits: Ideal for capturing the spectra of faint, extended objects like galaxies or nebulae where maximizing light throughput is more important than resolution.
    • Photometric Slits: Designed for spectrophotometry, allowing for accurate measurements of an object's flux, which is crucial for studying variable stars or supernovae.

  • What is the purpose of the LISA Slit Holder?

    The LISA Slit Holder is designed specifically for the Shelyak LISA spectroscope to make changing slits fast and simple. This allows an observer to use multiple slit types (e.g., standard, wide, photometric) during a single observing session without complex disassembly, adapting the instrument to different targets and scientific goals.

    Does the LISA Slit Holder include any slits?

    No, this product is only the holder itself. The various slits (standard, wide, photometric) must be purchased separately. This allows you to build a custom kit with only the slit types you need for your specific research or observing program.

    What types of slits can I use with the LISA Slit Holder?

    The holder is compatible with Shelyak's dedicated slits for the LISA spectroscope, which include standard slits for high-resolution work, wide slits for faint objects, and photometric slits for flux analysis.

    Why would I need to change slits on my LISA spectroscope during an observing session?

    Different astronomical targets require different slit widths for optimal results. You might start a session by capturing a high-resolution spectrum of a bright star with a narrow slit, then switch to a wide slit to capture more light from a faint galaxy. The holder makes this transition efficient.

    How does using a wide slit with the LISA Slit Holder affect my spectra of a faint galaxy like the Whirlpool Galaxy (M51)?

    For a faint, extended object like M51, a wide slit allows more photons from the galaxy's core or spiral arms to enter the spectroscope. This increases the signal-to-noise ratio, making it possible to detect faint emission or absorption features that would be lost with a narrow slit, though it does so at the cost of lower spectral resolution.

    If I want to measure the flux of a variable star like Betelgeuse with my LISA, which slit should I use in the holder?

    For measuring accurate brightness (flux), you should use a photometric slit in your LISA Slit Holder. These slits are designed to be wide enough to ensure all the light from the star enters the spectroscope, even with minor tracking errors or poor seeing, which is essential for reliable spectrophotometry.

  • Shelyak 1-Year Warranty