Let’s Dive into Celestron Advanced VX Computerized Mount 91519
The Celestron Advanced VX Computerized Mount 91519 is a mid-level German equatorial mount designed with the astroimager in mind. This mount bridges the gap between entry-level mounts and professional observatory-class systems, offering a compelling blend of features and affordability. Celestron has packed this mount with technologies like All-Star Polar Alignment and permanent periodic error correction.
My need for a reliable, portable, and computerized mount stemmed from a desire to move beyond basic visual astronomy and delve into astrophotography. I was limited by my existing alt-azimuth mount, which struggled with long-exposure tracking. I needed something precise enough to handle a small telescope for deep-sky objects.
Upon unboxing the Celestron Advanced VX Computerized Mount 91519, I was immediately impressed by the robust construction. The stainless steel tripod felt solid, and the mount head itself had a reassuring heft. The materials felt durable and the overall build quality inspired confidence for extended use under dark skies.
When choosing a mount, I considered the Sky-Watcher HEQ5 Pro and the iOptron CEM25P. I opted for the Celestron Advanced VX Computerized Mount 91519 due to its proven track record. It offered a larger payload capacity than the iOptron, and a seemingly more intuitive user interface than the Sky-Watcher at the time of purchase.
My first impression was positive, but tinged with a bit of apprehension. While the mount appeared well-engineered, the computerized GoTo system added complexity. I was excited to see if it could live up to the claims of easy polar alignment and accurate tracking.
Real-World Testing: Putting Celestron Advanced VX Computerized Mount 91519 to the Test
First Use Experience
I first tested the Celestron Advanced VX Computerized Mount 91519 at a local dark sky site known for its minimal light pollution. The site offered a wide-open view of the night sky, perfect for deep-sky imaging. I put the mount through its paces, tracking objects like the Orion Nebula and the Andromeda Galaxy.
The weather conditions were typical for a late autumn night: cold and slightly damp. The mount performed admirably even in these less-than-ideal conditions. I did experience a little condensation forming on the hand controller, but it didn’t affect functionality.
The All-Star Polar Alignment procedure was relatively straightforward, though it took me a couple of tries to get it dialed in. The hand controller’s interface was initially a bit clunky. But I quickly grew accustomed to navigating the menus. After alignment, the GoTo accuracy was surprisingly good, placing objects within the eyepiece field of view most of the time.
My initial concern was the mount’s advertised 30lb payload capacity. I was using a relatively lightweight 80mm refractor. But I wanted to add a guide scope, camera, and other accessories. The mount handled the load without issue.
Extended Use & Reliability
After several months of consistent use, the Celestron Advanced VX Computerized Mount 91519 has proven to be a reliable workhorse. I’ve taken it to several dark sky locations, each with varying environmental conditions.
The mount has held up well. There are no visible signs of wear and tear beyond minor scratches on the tripod legs. The motors still run smoothly, and the GoTo accuracy remains consistent after numerous alignment procedures.
Maintenance has been minimal: a quick wipe-down after each use and occasional lubrication of the RA and DEC axes. The Celestron Advanced VX Computerized Mount 91519 requires regular re-greasing, which may be a turn off for some users.
Compared to my previous alt-azimuth mount, the Celestron Advanced VX Computerized Mount 91519 is a night-and-day difference. The equatorial design enables long-exposure astrophotography, while the GoTo system streamlines object location. The upgrade was absolutely worth it.
Breaking Down the Features of Celestron Advanced VX Computerized Mount 91519
Specifications
The Celestron Advanced VX Computerized Mount 91519 is packed with features that cater to both visual observers and astrophotographers.
- Tripod: Adjustable, Stainless Steel. This provides a stable foundation for the mount, crucial for achieving sharp images.
- Payload Capacity: 30 lbs (14 kg). This allows for mounting a variety of telescopes and accessories without compromising stability.
- Motor Drive: Low cog DC Servo motors with encoders, both axes. These provide smooth, accurate tracking for long-exposure astrophotography.
- Communication Ports: 2x AUX ports, Autoguider port, RS-232 port. These allow for connecting various accessories, including autoguiders and computers for advanced control.
- Database: 40,000+ objects, 100 user defined programmable objects. This large database makes locating celestial objects easy.
- Latitude Range: 7-77 deg. Making this mount suitable for a wide range of geographical locations.
These specifications are critical for successful astrophotography. The payload capacity dictates the size and weight of the telescope that can be supported. The motors and encoders ensure precise tracking. The communication ports enable autoguiding, which greatly improves image quality.
Performance & Functionality
The Celestron Advanced VX Computerized Mount 91519 performs admirably in its intended role as a mid-level astrophotography mount. Its GoTo accuracy is generally very good. The All-Star Polar Alignment routine works well when properly executed.
One weakness is the periodic error, which can cause slight tracking inaccuracies over time. However, the permanently programmable periodic error correction (PPEC) feature helps mitigate this issue. The occasional need for re-greasing the RA and DEC axis is another potential drawback.
The mount largely meets expectations, though it requires some initial learning and fine-tuning to achieve optimal performance. It provides a solid foundation for both visual observing and entry-level astrophotography.
Design & Ergonomics
The Celestron Advanced VX Computerized Mount 91519 features a functional, if somewhat utilitarian design. The build quality is robust, and the materials used appear to be durable.
The mount head is relatively compact, and the stainless steel tripod provides a stable base. The hand controller is easy to hold and operate.
There is a slight learning curve associated with setting up the mount and navigating the hand controller’s menus. However, with practice, the process becomes more intuitive.
Durability & Maintenance
The Celestron Advanced VX Computerized Mount 91519 appears to be built to last. The stainless steel tripod and sturdy mount head should withstand years of use.
Maintenance is relatively straightforward, primarily involving occasional cleaning and lubrication. A full re-grease should be anticipated every 12 to 18 months, depending on use and environment.
Accessories and Customization Options
The Celestron Advanced VX Computerized Mount 91519 comes with a car battery adapter, counterweight, and the NexStar+ hand controller. These accessories provide everything needed to get started.
The mount is compatible with a variety of aftermarket accessories, including autoguiders, GPS modules, and polar alignment scopes. Upgrading the tripod is a common modification. Adding a better counterweight is another typical upgrade that users make.
Pros and Cons of Celestron Advanced VX Computerized Mount 91519
Pros
- Precise tracking capabilities suitable for long-exposure astrophotography.
- All-Star Polar Alignment simplifies and speeds up polar alignment.
- Extensive object database with over 40,000 celestial objects.
- Robust construction and durable materials for long-lasting performance.
- GoTo functionality makes it easy to locate and track objects.
Cons
- Periodic error requires correction for optimal tracking accuracy.
- The user interface on the NexStar+ hand controller can be clunky.
- Requires occasional re-greasing.
Who Should Buy Celestron Advanced VX Computerized Mount 91519?
The Celestron Advanced VX Computerized Mount 91519 is perfect for amateur astronomers looking to transition from visual observing to astrophotography. It’s also an excellent choice for those seeking a portable and affordable German equatorial mount.
This mount is not ideal for experienced astrophotographers who require ultra-high precision tracking or heavier payloads. Visual astronomers who don’t need computerized GoTo functionality might find it overkill.
A must-have accessory is an autoguider system, which significantly improves tracking accuracy. A polar alignment scope can further streamline the polar alignment process. A dew heater system to combat condensation on the telescope optics is also recommended.
Conclusion on Celestron Advanced VX Computerized Mount 91519
The Celestron Advanced VX Computerized Mount 91519 offers a compelling blend of features, performance, and affordability. It bridges the gap between entry-level and professional-grade mounts.
The price is justified by its capabilities, particularly for those interested in astrophotography. While it has some minor drawbacks, they are outweighed by its strengths.
I would personally recommend the Celestron Advanced VX Computerized Mount 91519 to anyone looking to take their astronomical pursuits to the next level. It’s a solid investment that will provide years of reliable service. If you’re ready to embark on your astrophotography journey, this mount is a great place to start!