Just Saturn Uranus

When considering if two refractors are both f/10, it is necessary to understand what the f-number means. The “f/10” refers to the focal ratio of the telescope, which is the focal length divided by the aperture. For instance, a telescope with a focal ratio of f/10 will have a focal length that is ten times […]

The decision to upgrade your current telescope or buy a new one depends on several factors, including your budget, skill level, observing goals, and the capabilities of both your existing and potential new equipment. Here’s a detailed guide to help you decide: Assess Your Current Telescope: Start by evaluating the condition and capabilities of your […]

In the context of a video, a flashing blue arc is often a type of electrical discharge phenomenon. If the video is related to electrical systems, power lines, or electronic devices, the blue arc could be indicative of an event known as “arcing” or “arc flash.” This is a type of electrical explosion or discharge […]

The Celestron StarSense Explorer LT 80AZ and the SarBlue Mak-Cass Mak70 are both interesting options for amateur astronomers, but they cater to slightly different needs and preferences due to their distinct features and designs. The Celestron StarSense Explorer LT 80AZ is a refractor telescope with an aperture of 80mm, which allows it to gather more […]

Reviving an antique or legacy telescope for terrestrial viewing can be a fulfilling and cost-effective project if approached methodically. Here are some steps to follow: Assessment: Begin by assessing the current condition of the telescope. Check for any visible damages like broken lenses, misaligned mirrors, or damaged eyepieces. Take note of any missing or corroded […]

The AD8 is a screening tool used to detect early signs of dementia, particularly Alzheimer’s disease. When considering the use of AD8, there are several recommendations or best practices to ensure its effective application: Understand the Purpose: The AD8 is not a diagnostic tool but a screening instrument that signals the need for a comprehensive […]

The Sky-watcher EQ-AL55i is a highly regarded computerized equatorial mount that caters to both amateur and professional astronomers. This model is part of Sky-watcher’s range of telescope accessories designed to enhance the experience of stargazing and astrophotography. The EQ-AL55i is known for its precision and stability, which are essential for tracking celestial objects across the […]

Collimating a telescope like the Celestron Astromaster 114AZ involves aligning the optics to ensure optimal performance and clear images. Here’s a step-by-step guide: Gather Tools: Before beginning, ensure you have the necessary tools—a collimation cap, a Phillips screwdriver, and, optionally, a laser collimator for more precise alignment. Setup the Telescope: Place your telescope on a […]

To address the issue of setting up the SkyAlign tracking feature on the Celestron 4se and Meade LX90 telescopes, follow these steps: General Setup Tips: Ensure both telescopes are leveled and stable. Use a bubble level if necessary to make sure the tripod is even. Power on the telescope, ensuring that you have fresh batteries […]

Testing optics involves a multifaceted approach to ensure that lenses or optical systems meet the required specifications for performance and functionality. Here are some key steps and techniques typically employed in evaluating optical systems: Visual Inspection: Initial testing usually involves a thorough visual inspection under appropriate lighting conditions. This step helps identify any surface defects, […]