2.0 Safe to install
Revolutionize Your Vision with Sight Calc
Sight Calc is a powerful application designed to simplify and enhance the process of calculating visual acuity and determining prescription requirements for eyeglasses and contacts.
Sight Calc is a specialized calculator designed for calculating sight reductions using the "Law of Cosines" method. This tool does not rely on Nautical Almanac data, requiring users to calculate the Local Hour Angle (LHA) and declination beforehand, along with determining an approximate latitude. It is tailored for students studying celestial navigation, particularly in programs like the Celestial Navigation courses offered by the United States Power Squadrons®. For those unfamiliar with sight reductions, valuable resources are available from the United States Power Squadrons® at www.usps.org. Specifically, this calculator complements Form SR96a found at www.usps.org/eddept/n/files/sr96a.pdf.
Inputs can be provided in two formats:
- Degrees on the left column and minutes on the right column.
- Decimal degrees (e.g., 44.48833).
Sight Calc will guide users through entering six numbers sequentially:
- LHA (degrees)
- LHA (minutes)
- Latitude (degrees)
- Latitude (minutes)
- Declination (degrees)
- Declination (minutes)
In version 2.0, values can be entered in any order. The calculated values for Hc, Z, and Zn are updated continuously.
Ensure to enter North Latitude as a positive number and South Latitude as a negative number. Sight Calc automatically considers the absolute value of Latitude in the Law of Cosines formula but requires the hemisphere for calculating azimuth (Zn). Similarly, enter positive values for Declination if North and negative if South. Note that this differs from version 1.x of Sight Calc.
If conducting repeated calculations with some unchanged numbers, input only the updated values. To reset all entries at any point, press "C" to clear all data. The "CE" key removes the current entry. Optionally, use the "o" key to convert minutes to decimal degrees, which adds to the degrees field and clears the minutes field, without affecting calculations.
Feedback on bugs or suggestions can be shared at: [email protected].
Overview
Sight Calc is a Commercial software in the category Education developed by NUVOCOM INCORPORATED.
The latest version of Sight Calc is 2.0, released on 07/30/2024. It was initially added to our database on 07/30/2024.
Sight Calc runs on the following operating systems: iOS.
Users of Sight Calc gave it a rating of 5 out of 5 stars.
Minh Ong
I'm Minh, a software engineer and author with a passion for exploring and writing about the latest in software and technology. With my experience in software development and a specialization in software updates and content creation, I bring a deep understanding of the tech landscape to my reviews and articles. My focus is on providing you with comprehensive insights into general software topics and the latest industry news.
Latest Reviews by Minh Ong
- Get Creative with Remix - Emoji Mashup & Sticker
- Remitbee: Your Go-To Solution for Hassle-Free International Money Transfers
- Convenient Banking at Your Fingertips with My Synovus Mobile Banking
- Zombie Gunship Revenant AR: Thrilling Zombie-Slaying in Augmented Reality!
- Stay Organized with Reminder Widget by Mindr
Related products
Celestial Nav
Celestial Nav offers a comprehensive set of celestial navigation tools, designed for ease of use and accuracy: Celestial navigational computations directly on your device Simple toolbar menu enabling quick access to features Perpetual …Distance Lite
The application delivers an efficient method to ascertain the distance and direction between any two locations on Earth, especially beneficial following the recent upgrade.EZ Celestial Navigation
Celestial navigation has never been easier with ezAlmanacOne! This tool, in combination with a sextant, allows users to master the art of finding their fix efficiently.iMariner Celestial Navigation
iMariner Celestial Navigation offers a comprehensive set of tools for celestial navigation, including features such as Sight, Fix, Meridian, Starfinder, and Solar Compass.Maneuvering Board
The transition from traditional paper maneuvering boards to a modern electronic solution represents a significant advancement in maritime navigation.StarPilot
StarPilot: Your Ultimate GPS Navigation CompanionLatest Updates
AnyTrans 8.9.6
Effortlessly manage and transfer your iOS data with AnyTrans!Remove Logo Now! 10.2
Easily Remove Watermarks and Logos from Images and Videos with Remove Logo Now!VSO Downloader 6.1.0.139
Effortless Video Downloading at Your FingertipsOutlook4Gmail 5.5.1
Streamline Your Gmail and Outlook Integration with Outlook4GmailUbiquiti UniFi 9.0.114
Easily manage your Ubiquiti network with UniFi.EASEUS Todo Backup Free 2025.2
Reliable and Easy-to-Use Backup SolutionApp Store
with UpdateStar freeware.
Latest News
Latest Reviews
![]() |
WordFinder by YourDictionary
Unlock Your Vocabulary with WordFinder by YourDictionary |
![]() |
Remnant Ministries Mobile App
Empower Your Spiritual Journey with the Remnant Ministries Mobile App |
![]() |
The Boubyan App
Revolutionize Your Banking Experience with The Boubyan App |
![]() |
AI Mirror: AI Art Photo Editor
Transform Your Photos into Stunning Art with AI Mirror |
![]() |
The Trail
A Captivating Adventure Awaits in The Trail |
![]() |
Sky Tonight - Star Gazer Guide
Unlock the Wonders of the Night Sky with Sky Tonight |
![]() |
UpdateStar Premium Edition
Keeping Your Software Updated Has Never Been Easier with UpdateStar Premium Edition! |
![]() |
Microsoft Visual C++ 2015 Redistributable Package
Boost your system performance with Microsoft Visual C++ 2015 Redistributable Package! |
![]() |
Microsoft Edge
A New Standard in Web Browsing |
![]() |
Google Chrome
Fast and Versatile Web Browser |
![]() |
Microsoft Visual C++ 2010 Redistributable
Essential Component for Running Visual C++ Applications |
![]() |
Microsoft Update Health Tools
Microsoft Update Health Tools: Ensure Your System is Always Up-to-Date! |