Celestron Mounts

Comparison of the Celestron Advanced VX, CGX and CGEM II Computerized Mounts

Here is a detailed comparison of the Celestron Advanced VX, CGX, and CGEM II computerized mounts. These mounts are designed for different levels of astrophotography and visual observing, each offering varying capacities and features for different user needs.

1. Celestron Advanced VX (AVX) Computerized Mount

Overview:

The Celestron Advanced VX (AVX) is an entry-level to mid-range computerized mount designed for portable astrophotography setups. It is a great choice for beginners and intermediate users who want a versatile and lightweight mount for smaller telescopes.

Key Features:

• Payload Capacity: 30 lbs (13.6 kg)
• Latitude Range: 7° - 77°
• Tracking Accuracy: Periodic error correction (PEC)
• Alignment Technology: All-Star Polar Alignment
• Ports: NexStar+ hand control port, autoguider port, and accessory port
• Tripod: 2-inch stainless steel legs
• Weight: Total mount weight of 47 lbs (21.3 kg) including the tripod

Advantages:

• Lightweight and Portable: Ideal for astrophotographers on the move.
• Affordability: More affordable than the CGX and CGEM II, making it a great choice for beginners.
• PEC: Periodic error correction improves tracking for longer exposures.
• Versatility: Handles a wide range of smaller scopes, including refractors and small Schmidt-Cassegrain telescopes (SCTs).

Disadvantages:

• Lower Payload Capacity: Not suitable for heavier telescopes or advanced imaging setups.
• Limited Features: Fewer advanced features compared to the CGX or CGEM II for experienced users.

Best For:

• Beginners and intermediate astrophotographers with lighter telescopes looking for an affordable, portable mount for visual observation and astrophotography.

2. Celestron CGX Computerized Mount

Overview:

The Celestron CGX is a high-capacity, mid-range computerized mount designed for intermediate to advanced users. It is ideal for those with larger telescope setups and those who need precision and smooth tracking for serious astrophotography.

Key Features:

• Payload Capacity: 55 lbs (25 kg)
• Latitude Range: 3° - 65°
• Tracking Accuracy: Improved PEC, low cogging motors for smoother tracking
• Alignment Technology: All-Star Polar Alignment and programmable periodic error correction (PPEC)
• Ports: Dual-axis encoders, NexStar+ hand control port, autoguider port, USB 2.0 port, and accessory port
• Tripod: 2.75-inch steel legs
• Weight: 86.4 lbs (39.2 kg) including the tripod

Advantages:

• High Payload Capacity: Can handle larger telescopes, up to 11-14 inch SCTs or heavy-duty imaging setups.
• Advanced Tracking: Precise tracking with PPEC and low cogging motors, ideal for long exposure astrophotography.
• Solid Build: More stable with heavy-duty materials, ensuring better performance with heavier equipment.
• Built-in Handles and Carrying Ease: Easier to move compared to some other mounts with similar payload capacities.

Disadvantages:

• Heavier: Much heavier and less portable than the AVX, making it more suitable for a permanent or semi-permanent setup.
• Higher Cost: More expensive due to its increased capabilities.

Best For:

• Serious astrophotographers or advanced users with larger telescope setups requiring high precision and payload capacity for long exposure astrophotography.

3. Celestron CGEM II Computerized Mount

Overview:

The Celestron CGEM II is a mid-range computerized mount that serves as an upgrade to the original CGEM. It’s designed for intermediate to advanced users and bridges the gap between the AVX and CGX mounts in terms of performance and capacity.

Key Features:

• Payload Capacity: 40 lbs (18.1 kg)
• Latitude Range: 3° - 65°
• Tracking Accuracy: Improved PEC
• Alignment Technology: All-Star Polar Alignment and PPEC
• Ports: NexStar+ hand control port, USB port, autoguider port, and accessory port
• Tripod: 2-inch steel legs
• Weight: 68 lbs (30.8 kg) including the tripod

Advantages:

• Increased Payload Over AVX: Handles heavier telescopes than the AVX but is lighter than the CGX.
• Improved Tracking: Provides smooth tracking with PPEC, good for intermediate astrophotography.
• Affordable for Its Class: A good balance between cost and performance for intermediate users.
• Sturdy Tripod: Heavy-duty steel tripod ensures better stability during long exposures.

Disadvantages:

• Middle Payload Range: Lower payload than the CGX, limiting its use for very large telescope setups.
• Less Portable Than AVX: Heavier and bulkier than the AVX, but still more portable than the CGX.

Best For:

• Intermediate astrophotographers looking for a balance between portability, payload capacity, and advanced features for longer exposure astrophotography.

Key Comparisons:

Conclusion:

• Celestron Advanced VX: Ideal for beginners and those seeking a lightweight, portable, and affordable mount for astrophotography with smaller telescopes.
• Celestron CGX: Best for advanced astrophotographers needing high precision and heavy payload capacity, especially for larger setups and long exposure astrophotography.
• Celestron CGEM II: A solid option for intermediate to advanced users who want a balance between portability and performance, with enough capacity for mid-sized telescopes but less expensive and heavy than the CGX.

Choosing between these mounts depends on your payload needs, experience level, and whether you prioritize portability or performance.