The Celestron RASA 36 Rowe-Ackermann Schmidt Astrograph V2 OTA is a state-of-the-art 36 cm, f/2.2 optical system, ideal for both professional astronomical research and advanced astroimaging. Designed to cater to space surveillance and scientific applications, it stands out with its wide field of view and exceptional resolution.
Key Features:
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Advanced Optical System: Equipped with a 4-element lens group including extra-low dispersion (ED) glass, the RASA 36 cm delivers images free of false color, coma, and field curvature, making it a superior choice for advanced astroimaging.
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Ultra-Stable Focus System (USFS): This new system significantly reduces focus shift, mirror flop, and other unwanted motion of the primary mirror, ensuring easy and reliable focusing.
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Optimized Image Circle: With a 60 mm image circle, the telescope is designed to maintain pinpoint accuracy across the corners of even the largest imaging sensors.
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Extended Spectral Range: The RASA 36 cm can capture a wider spectral range (400-900 nm), optimizing sensor response and increasing overall signal brightness.
Optical Excellence and Versatility:
- Rapid, Wide-field Observations: As the largest and fastest optical instrument of its kind, the RASA 36 cm is uniquely suited for extensive sky surveys and space situational awareness programs.
- Professional-Caliber Instrumentation: Each RASA 36 cm is meticulously manufactured and aligned by Celestron technicians, ensuring exceptional optical performance suitable for professional use.
Additional Features:
- High-Transmission Coatings: Celestron’s XLT coatings ensure excellent light throughput.
- Integrated Cooling Fan: Facilitates optimal airflow and quick temperature equilibration while preventing dust ingress.
- Flexible Mounting Options: Dual dovetail bars compatible with CGE/Losmandy style mounts and additional mounting options for accessories.
- Ease of Handling: Features carrying handles for easy transportation and setup.
- Precise Optical Alignment: Includes options for fine-tuning the lens group alignment.
Important Shipping Information:
Due to its size, weight, and precision, the RASA 36 cm requires special handling and is shipped via palletized LTL truck freight, ensuring it reaches you in optimal condition, ready for high-caliber astronomical pursuits.
Specifications
| OPTICAL TUBE INFO: | |
|---|---|
| Optical Design: | Rowe-Ackermann Schmidt Astrograph |
| Aperture: | 355.6mm (14") |
| Focal Length: | 790mm (31.1") |
| Focal Ratio: | f/2.2 |
| Central obstruction diameter: | 158mm (6.22")(44% of aperture diameter) |
| Light Gathering Power (Compared to human eye): | 2581X |
| Resolution (Rayleigh): | 0.39 arc seconds |
| Resolution (Dawes): | 0.36 arc seconds |
| Image circle: | 60.1mm (2.36") Ø, 4.4° |
| Useable field: | 70mm (2.75") Ø, 5.1°, only minimal performance loss at edge of FOV |
| Wavelength range: | 400 – 900 nm |
| Spot size: | < 6.3 μm RMS across FOV |
| Optical coatings: | Enhanced aluminum, XLT Multi-Coated throughout |
| Off-axis Illumination: | 83% at 30mm (1.18") off-axis |
| Optical window: | 104mm (4.09") Ø |
| Back focus with included camera adapter: | 55mm (2.16") |
| Back focus from top of threaded collar: | 77.5mm (3.05") |
| Optical Tube: | Aluminum |
| Optical Tube Length: | 1079.5mm (42.5") |
| Optical Tube Diameter: | 406.4mm (16") |
| Focuser: | Ultra-Stable Focus System (USFS), minimizes lateral movement of primary mirror |
| Finderscope: | Not included |
| Optical Tube Weight: | 75 lbs (34.02 kg) |
| Other features: | Ventilation fan, dual dovetail mounting bars |
| Included Items: | 48mm (1.89") camera adapter Fan battery pack |
| Solar Warning |
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| California Residents |
WARNING: Cancer and Reproductive Harm - . |
