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🔭 Celestron RASA 3600 CGX-L Professional Astrograph System

Celestron's flagship Rowe-Ackermann Schmidt Astrograph in its largest 356mm (14") configuration, paired with the heavy-duty CGX-L GoTo mount. Built for observatories and advanced imagers, the RASA 3600 delivers an extraordinarily fast f/2.2 focal ratio across a huge aperture — a combination that redefines what is possible in deep-sky astrophotography.

🔭 356mm Aperture ⚡ Ultra-Fast f/2.2 🏛️ Observatory-Grade CGX-L Mount 🌌 Large-Scale Deep-Sky Imaging 🎯 Professional GoTo & Tracking

⭐ Quick Overview

Best For

  • Observatories
  • professional and advanced amateur astrophotographers
  • imaging teams
  • research-grade deep-sky surveys

Observing Targets

  • Faint nebulae
  • galaxies
  • galaxy clusters
  • wide-field deep-sky surveys
  • transient and nova monitoring

Main Advantages

  • Massive 356mm aperture combined with an ultra-fast f/2.2 focal ratio
  • integrated imaging-optimised optical design
  • heavy-duty CGX-L GoTo mount rated for large payloads
  • dramatically reduced exposure times

The Pinnacle Of Fast Wide-Field Astrographs

The Rowe-Ackermann Schmidt Astrograph (RASA) design was created specifically to solve one of astrophotography's biggest challenges: capturing large amounts of faint deep-sky light in the shortest possible time. At 356mm aperture and f/2.2, the RASA 3600 gathers light at a rate many times faster than a conventional f/8 telescope of similar aperture, letting professional and advanced imagers complete surveys and deep exposures in a fraction of the time.

Mounted on the CGX-L — Celestron's largest and most capable computerized equatorial mount — this system is engineered for the sustained, precise tracking that large-aperture, long-session deep-sky imaging demands, night after night.

🌌 What Is The RASA 3600 CGX-L Used For?

🌌 Faint Nebulae

Captures extremely faint emission structures in a fraction of typical exposure times.

🌀 Galaxies & Galaxy Clusters

Wide, fast field ideal for capturing extended galaxy groups in single frames.

🔭 Deep-Sky Surveys

Well suited to systematic imaging programs and time-domain astronomy.

💥 Transient & Nova Monitoring

Fast optics support rapid-cadence monitoring campaigns.

💡 Why f/2.2 At 356mm Aperture Is Exceptional

Focal ratio governs how quickly a telescope delivers light to the sensor; aperture governs how much total light-gathering power is available. Combining a large 356mm mirror with an f/2.2 focal ratio is a genuinely rare pairing, allowing this system to reach faint targets in exposure times that would otherwise require many times longer with a conventional astrograph.

🏛️ CGX-L: A Mount Built For Observatory Use

🏛️ Heavy-duty payload capacity for large optical tubes and imaging trains
🎯 Precision GoTo with professional-grade tracking accuracy
🔄 Designed for permanent or semi-permanent observatory installation
📡 Built for long, unattended imaging sessions

⭐ A System Built For Serious Output

This is not an entry-level or casual imaging setup — it is a complete, integrated system designed for observatories, imaging professionals and highly dedicated advanced amateurs who need to gather large amounts of high-quality deep-sky data efficiently.

🎯 Perfect For

🏛️ Observatories

A capable, fast wide-field system for public and research-facing imaging programs.

📸 Professional & Advanced Imagers

Dramatically shortened imaging times for large-scale projects.

🔬 Research-Oriented Astronomers

Suited to survey and monitoring style observing programs.

📸 Purpose-Built For High-Volume Astrophotography

Every aspect of the RASA 3600 CGX-L system is oriented toward maximising imaging throughput: fast optics, a large sensor-friendly image circle, and a mount engineered for sustained precision tracking under a substantial optical payload.

💡 Deployment Tips For Best Results

  • A solid permanent or semi-permanent pier is strongly recommended given the system's weight and precision requirements.
  • Careful collimation of the optical system is essential to fully exploit the fast focal ratio.
  • Professional-grade guiding and sequencing software is recommended for long observatory sessions.

📊 Technical Specifications

Brand Celestron
Model RASA 3600
Optical Design Rowe-Ackermann Schmidt Astrograph
Aperture 356mm
Focal Length 790mm
Focal Ratio f/2.2
Mount CGX-L Computerized Equatorial GoTo
Recommended Use Observatory / advanced imaging installation

📦 Included Accessories

📦 RASA 3600 optical tube
📦 CGX-L equatorial GoTo mount & tripod/pier adapter
📦 Hand controller
📦 Counterweights
📦 Documentation

❓ Frequently Asked Questions

❓ Is this suitable for a home observatory?

Yes, it is specifically designed for observatory-class installations and dedicated imaging setups.

❓ Do I need imaging experience for this system?

Yes, this is an advanced, professional-grade system intended for experienced astrophotographers.

❓ Why is the focal ratio so fast?

The RASA optical design is specifically engineered for extremely rapid deep-sky imaging at large aperture.

⭐ Why Buy From MJKZZ?

✅ Genuine Celestron product
🚚 Fast European shipping
🔒 Secure payment options
💬 Expert customer support
📦 Carefully packed shipment
Within the EU, the goods usually arrive within a few working days. Deliveries outside of the EU can take from just over a week to two weeks. Even an exchange or return within 14 days can be handled more quickly, cheaper and less complicated on the MJKZZ.DE page, if the items only need to be sent back to Germany/Austria. For large orders OUTSIDE of EU contries, it is possible that the shipping costs need to be calculated manually becasue of insurance. But we only charge the real shipping costs!

If you are ordering OUTSIDE of EU: Please contact us to place your order without VAT. We will send you an invoice excluding 20% tax.

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