The Story Behind the Celestron Advanced VX Computerized Mount 91519
For years, my pursuit of capturing the cosmos in high detail has been a journey of incremental upgrades, each piece of gear chosen to overcome specific limitations. My previous German Equatorial (GE mount) had served me well, but as my imaging targets became more ambitious and my telescopes grew in aperture, I found myself wrestling with tracking accuracy and payload capacity. The specter of meridian flips, a tedious necessity with my old mount, loomed large over longer imaging sessions, forcing awkward pauses and potential loss of valuable sky time. This is precisely why the Celestron Advanced VX Computerized Mount 91519 entered my radar. It promised features typically found on much more expensive observatory-grade mounts, all while aiming to be a portable yet capable imaging platform. I had considered larger, heavier mounts, but the idea of lugging observatory-level weight to dark sky sites was a non-starter for my mobile setup. My first impression upon unboxing was one of solid engineering; the castings felt substantial, and the overall fit and finish spoke of a tool designed for purpose. There was an immediate sense of relief, a quiet confidence that this might finally be the workhorse I needed to elevate my astrophotography.
Real-World Testing: Putting Celestron Advanced VX Computerized Mount 91519 to the Test
First Use Experience
My initial tests with the Celestron Advanced VX Computerized Mount 91519 took place in my backyard under the familiar glow of suburban light pollution, and later, under the pristine dark skies of a remote desert location. Setting up involved a familiar routine for a German Equatorial mount, but the larger tripod legs felt notably more stable from the outset. The NexStar+ hand control was surprisingly intuitive, and the various alignment procedures, including the advertised All-Star Polar Alignment, proved effective even with a limited view of the sky. Tracking accuracy out of the box was a significant step up from my previous mount; small adjustments to the DEC axis were all that was needed to achieve tight star clusters. The ability to track across the meridian without needing to perform an abrupt meridian flip was a game-changer for uninterrupted imaging sessions. I encountered a minor quirk during the first extended session where the motor noise seemed a tad more pronounced than expected, but this proved to be an easily addressable issue with lubricant adjustments.
Extended Use & Reliability
After several months of consistent use, spanning numerous clear nights and portable excursions, the Celestron Advanced VX Computerized Mount 91519 has become an indispensable part of my imaging arsenal. Its robust payload capacity of 30 lbs (14 kg) has easily accommodated my refractor and even a heavier Newtonian optical tube assembly without significant strain. The low cog DC servo motors with encoders have demonstrated exceptional reliability, maintaining smooth tracking even through long exposures of 5-10 minutes. Wear and tear have been minimal; the stainless steel tripod legs show only minor scuffs from transport, and the internal mechanics remain tight and responsive. Maintenance has been straightforward: periodic lubrication of the worm gears and bearings, a task made easier by the mount’s accessible design. Compared to the budget mounts I started with, this mount offers a level of stability and precision that makes a tangible difference in image quality, significantly reducing the need for aggressive post-processing to correct tracking errors.
Breaking Down the Features of Celestron Advanced VX Computerized Mount 91519
Specifications
The Celestron Advanced VX Computerized Mount 91519 boasts a comprehensive set of specifications designed for serious amateur astrophotographers. Its payload capacity of 30 lbs (14 kg) is ample for many popular telescope setups, comfortably handling my 6-inch refractor with accessories. The sturdy, adjustable stainless steel tripod features 2″ legs, providing a broad and stable base that is crucial for minimizing vibrations. The mount itself weighs 17 lbs (7.71 kg), contributing to the overall system’s balance and portability, while the entire package tips the scales at 46 lbs (21 kg), a manageable weight for transport. Power is supplied via a standard 12V DC 3.5A (tip positive) connection, with an included car battery adapter for field use.
The latitude range is impressively broad, covering 7-77 degrees, making it suitable for users across most of the globe. At its core are the low cog DC servo motors with encoders on both axes, offering precise and quiet operation. These motors drive nine slew speeds, with a maximum of 4 deg/sec, and support multiple tracking rates, including sidereal, solar, and lunar. The NexStar+ hand control is a well-featured unit with a double line, 16 character Liquid Crystal Display and 19 fiber optic backlit LED buttons, which are a blessing during night operations. Its internal database holds 40,000+ objects, plus 100 user-defined programmable objects, with enhanced information on over 200 celestial targets. Communication ports include 2x AUX ports, an autoguider port, and an RS-232 port on the hand control.
Performance & Functionality
The primary function of the Celestron Advanced VX Computerized Mount 91519 is accurate celestial tracking for imaging, and it excels in this regard. The integer gear ratios and permanently programmable Periodic Error Correction (PEC) are vital for long-exposure astrophotography, effectively smoothing out recurring tracking errors that plague many mounts. I found the PEC feature to be particularly effective, allowing me to significantly reduce tracking artifacts after a careful training cycle. The improved motors offer more torque and can handle slight load imbalances with ease, a testament to their robust design. This translates to sharper stars and cleaner images, especially when imaging fainter deep-sky objects.
The ability to image across the meridian without doing a meridian flip is a feature usually reserved for higher-end mounts, and its inclusion here is a major selling point. This seamless transition means more continuous data acquisition and fewer interruptions during critical imaging windows. While the mount is rated for 30 lbs, I found optimal performance was achieved with payloads closer to 20-25 lbs, especially when pushing the limits with longer focal lengths. Beyond imaging, the mount performs admirably for visual astronomy, holding even larger eyepieces steady and slewing quickly to desired targets.
Design & Ergonomics
Celestron has clearly invested in the design of the VX mount, and the results are evident in its improved stability and aesthetics. The significantly larger base castings than our previous design provide a much more rigid platform, reducing flexure that can plague lighter mounts. The updated industrial design is not just about looks; it contributes directly to the mount’s improved rigidity. The placement of the motors has been reconsidered, allowing for better clearance and facilitating those crucial meridian-spanning imaging sessions.
The stainless steel tripod legs are robust and adjustable, with a wide range of heights from a minimum of 44 inches to a maximum of 64 inches, accommodating users of various statures. The counterweight bar is a substantial 12″ length with a 0.75″ diameter, providing ample room for balancing heavier payloads. The included 11 lb counterweight is a good starting point, though I found an additional counterweight was often necessary for perfect balance with my heavier setups. The NexStar+ hand control is ergonomically designed for use in the dark, with responsive buttons and a clear display.
Durability & Maintenance
The Celestron Advanced VX Computerized Mount 91519 is built to last, embodying the ruggedness expected from equipment used in variable outdoor conditions. The all-metal construction and sturdy tripod speak to its durability. The DC servo motors are known for their longevity and reliability. Over my extended testing period, I have observed no signs of premature wear or component failure.
Maintenance is straightforward for a German Equatorial mount. Periodic cleaning of dust and debris from gears and bearings is recommended, along with re-lubrication. Celestron specifies using a light bearing grease, and I found that applying it sparingly to the worm gears and RA/DEC worm wheels after every few months of regular use kept the mount running smoothly and quietly. Some users have reported that the factory grease can be a bit stiff in colder temperatures, leading to sticky motors; a replacement with a lighter, low-temperature grease is a common and effective upgrade.
Accessories and Customization Options
The Celestron Advanced VX Computerized Mount 91519 comes with a solid set of accessories necessary for immediate use. This includes the NexStar+ hand control, the substantial counterweight bar, and one 11 lb counterweight. The car battery adapter is essential for portable astronomy sessions.
Further customization and enhancement are readily available. The inclusion of two AUX ports allows for expansion, most notably with the optional Celestron SkySync GPS Accessory, which automatically provides accurate time and location data for quicker alignment. The dedicated autoguider port is critical for deep-sky astrophotography, allowing integration with dedicated autoguiding cameras to achieve sub-pixel tracking accuracy. Many aftermarket accessories are compatible, such as additional counterweights, different saddle plates to accommodate various telescope dovetails, and upgraded cabling for more robust connections.
Pros and Cons of Celestron Advanced VX Computerized Mount 91519
Pros
- Excellent Value for Astrophotography: Offers features typically found on much more expensive mounts at a competitive price point.
- Impressive Payload Capacity: Can reliably handle telescopes up to 30 lbs, suitable for a wide range of optical tubes.
- Meridian-Crossing Capability: Allows for uninterrupted imaging sessions without the need for a time-consuming meridian flip.
- Accurate Tracking with PEC: The low cog DC servo motors and permanently programmable Periodic Error Correction ensure sharp stars in long exposures.
- Robust Build Quality: Features larger base castings and stainless steel tripod legs for enhanced stability and durability.
- Broad Latitude Range: Adjustable from 7-77 degrees, making it versatile for users in various geographical locations.
- Comprehensive Object Database: The NexStar+ hand control database contains over 40,000 celestial objects for easy slewing.
Cons
- Motor Noise: While generally quiet, some users report the motors can be slightly audible, especially when new or in colder temperatures.
- Factory Lubrication: The stock grease can sometimes be stiff in cold weather, potentially requiring replacement for optimal performance in sub-optimal conditions.
- Optimal Payload vs. Max Capacity: While rated for 30 lbs, performance is best when payloads are kept closer to 20-25 lbs for extended, high-precision imaging.
Who Should Buy Celestron Advanced VX Computerized Mount 91519?
The Celestron Advanced VX Computerized Mount 91519 is an ideal choice for the aspiring astrophotographer looking to step up from a lighter-duty mount or equatorial wedge. It is also a fantastic option for intermediate imagers who want a portable yet capable imaging platform for dark sky excursions without breaking the bank. The serious visual astronomer who desires precise Go-To capabilities and stable tracking for high-magnification observing will also find this mount highly beneficial.
Those who should probably skip this product might include individuals requiring an ultra-heavy-duty observatory mount or those who primarily do wide-field Milky Way panoramas with a DSLR on a simple star tracker; this mount’s complexity and weight are likely overkill for such minimal demands. To maximize the experience, I highly recommend purchasing the Celestron SkySync GPS Accessory for faster alignments and ensuring you have adequate counterweights for your specific telescope and accessory setup.
Conclusion on Celestron Advanced VX Computerized Mount 91519
The Celestron Advanced VX Computerized Mount 91519 strikes an impressive balance between capability, portability, and affordability. It delivers on its promise of providing advanced astrophotography features in a mid-level package, making the pursuit of detailed cosmic images more accessible. The robust build, accurate tracking, and convenient meridian-crossing capability significantly enhance the imaging workflow. While minor upgrades to lubrication might be beneficial for some users in specific conditions, these are easily addressed. For its price, the value proposition is exceptionally strong, offering a pathway to significantly improved astrophotography results. I would wholeheartedly recommend the Celestron Advanced VX Computerized Mount 91519 to anyone looking for a reliable, feature-rich German Equatorial mount that can grow with their astronomy passion.