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Celestron 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope

SKU: CNRASA36CM MFR: 91077
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Key Features

  • Capture stunning astrophotos with the Celestron RASA Telescope's fast f/2.22 focal ratio.
  • Enjoy exceptional optical quality with enhanced aluminum and XLT multi-coatings for bright images.
  • The large 355.6mm aperture gathers ample light, revealing faint deep-sky objects with ease.
  • Minimize focus shift with the telescope's new focuser design, ensuring sharp celestial views.
  • Achieve high resolution with the Rowe-Ackermann Schmidt Astrograph, perfect for detailed imaging.
  • Features a ventilation fan to reduce heat buildup, maintaining optimal telescope performance.
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Special Order?Estimated to Ship: 08/07/2025
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Celestron 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope Specifications

  • Optical Design

    Rowe-Ackermann Schmidt Astrograph

  • Aperture

    355.6mm

  • Focal Length

    790mm

  • Focal Ration

    2.22

  • Central Obstruction

    158mm (44% of aperture diameter)

  • Finderscope

    Not included

  • Light Gathering Power

    2581x

  • Optical Coatings

    Enhanced aluminum, XLT multi-coatings used throughout

  • Resolution (Rayleigh)

    0.39 arc seconds

  • Resolution (Dawes)

    0.36 arc seconds

  • Image Circle

    60.1mm / 4.4 degree

  • Useable Field

    70mm / 5.1 degree, only minimal performance loss at edge of FOV

  • Wavelength Range

    400 - 900 nm

  • Off-axis Illumination

    83% at 30 mm off-axis

  • Optical Window

    104mm, removeable

  • Back focus with included camera adapter

    55mm

  • Back focus from top of threaded collar

    77.5mm

  • Spot Size

    < 6.3 ¼m RMS across FOV

  • Focuser

    New focuser design, minimizes focus shift

  • Optical Tube

    Aluminum

  • Other features

    Ventilation fan, dual dovetail mounting bars

  • Battery Info

    Required, not included

  • Battery Material

    Alkaline

  • Battery Type

    AA

  • Battery Quantity

    8

  • Dimensions (Dia x L)

    Optical Tube: 16 x 42.5" (40.64 x 107.95cm)

  • Weight

    Optical Tube: 75 lbs (34.01kg)

  • UPC Code

    050234910774

About Celestron 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope

Take your astrophotography to the next level with the 36cm Rowe-Ackermann Schmidt Astrograph (RASA) Telescope, a pinnacle of Celestron's innovative optics technology. This high-quality, durable astrograph is designed for the serious astrophotographer who demands sophisticated and advanced equipment for space surveillance, Space Situational Awareness (SSA), and other scientific applications.

The RASA Telescope stands out with its large 14-inch (355mm) aperture, which significantly enhances its light-gathering capability, resulting in brighter and more detailed images of the cosmos. Its fast f/2.2 optical system allows for rapid image capture, making it ideal for capturing fleeting celestial events and detailed wide field astroimaging.

Celestron's RASA design is optimized for a flat focal plane, ensuring sharp focus all the way to the edge of its expansive field of view. This innovative design eliminates common optical defects such as field curvature, off-axis coma, and astigmatism, providing you with pristine, professional-grade images.

As the largest RASA model Celestron offers, this telescope is unmatched in its class, providing an "off-the-shelf" solution that rivals custom-built instruments. The extended spectral range focus (400-900 nm) of the RASA 36 cm allows for a brighter signal capture, enhancing the capabilities of your camera sensor and ensuring superior image quality.

The telescope's redesigned focus system is a testament to Celestron's commitment to user-friendly, stable, and precise focusing. With an ample back-focus distance of 77.5 mm, the RASA 36 cm is versatile enough to accommodate a wide array of imaging sensors. For those seeking an even broader perspective, a custom camera adapter can be added to achieve an impressive field of view up to 4.4 degrees.

Choose the 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope for its unparalleled aperture, speed, and field of view, and join the ranks of astrophotographers who trust Celestron's legacy of quality and performance.

Celestron 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope Features

  • A breakthrough 36 cm aperture, f/2.2 optical system designed for professional applications that require both a wide field of view and resolution, such as space surveillance and other scientific applications
  • 4-element lens group utilizes extra-low dispersion (ED) glass for images free of false color, coma, and field curvature, the Rowe-Ackermann Schmidt Astrograph (RASA) 36 cm is also an excellent choice for advanced astroimaging
  • 60 mm optimized image circle maintains pinpoint stars to the far corners of the largest available sensors
  • Extended spectral range takes advantage of sensor response in the 700-900 nm range, allowing a brighter overall signal to be detected
  • Redesigned focusing system minimizes focus shifting or other unwanted motion of the primary mirror, enabling easy and stable focus
  • Celestron's proprietary XLT coatings, consisting of high-transmission multi-coatings for lenses and high reflectivity aluminum coatings, ensure good light throughput for the optical system
  • Integrated cooling fan helps optics cool down to ambient temperature and pulls air through vents with micromesh to prevent dust ingress
  • Dual dovetail bars offer flexibility to mount the optical tube and conveniently attach additional accessories. Accomodates "CGE/Losmandy" style dovetails.
  • Two sets of 2x threaded insert holes in the rear cell provide additional mounting options
  • Move and mount your optical tube with ease with carrying handles on the rear cell
  • Although not normally needed, there are 3x sets of push-pull screws to adjust the lens group to achieve optical alignment for the entire system
  • Includes M48 camera adapter
  • Motor system specifically designed for the RASA 36 cm focuser is manufactured by Starlight Instruments.

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

Product Documents

User Manual

Key Features

  • Capture stunning astrophotos with the Celestron RASA Telescope's fast f/2.22 focal ratio.
  • Enjoy exceptional optical quality with enhanced aluminum and XLT multi-coatings for bright images.
  • The large 355.6mm aperture gathers ample light, revealing faint deep-sky objects with ease.
  • Minimize focus shift with the telescope's new focuser design, ensuring sharp celestial views.
  • Achieve high resolution with the Rowe-Ackermann Schmidt Astrograph, perfect for detailed imaging.
  • Features a ventilation fan to reduce heat buildup, maintaining optimal telescope performance.

What's in the box:

  • 36cm Rowe-Ackermann Schmidt Astrograph RASA Telescope
  • 48mm Camera Adapter
  • Fan Battery Pack