Star Pupil 4+

Name: Star Pupil
Rating: 3 (1 reviews)
Author: Richard Craddock

Richard Craddock

Designed for iPad

- 3.0 • 1 Rating

- Free

Description

The best way to practice Celestial Navigation

Star Pupil is a practice aid for learning Celestial Navigation. It does not merely produce the answers to sight reductions but rather shows all the steps along the way!

Traditional Celestial Navigation is straightforward and requires only a Nautical Almanac, Sight Reduction Tables, and basic arithmetic. However each step must be performed correctly, and small errors, like adding rather than subtracting, are easy to make.

Star Pupil sharpens your traditional Celestial Navigation skills by showing each calculation and each step along the way for performing a Sight Reduction and plotting a Line of Position.

Star Pupil shows all the calculations and steps for:
* Calculating Ha from Hs using a Nautical Almanac
* Performing a sight reduction for the Sun and Planets using Pub 229
* Performing a sight reduction for Stars using either Pub 229 or Pub 249
* Plotting LOPs for the Sun, Planets, and Stars
* Plotting multiple LOPs to get a fix

Additionally, Star Pupil shows the steps for finding twilight at your position, and looking up the best stars for taking sights using Publication 249 Volume 1.

11 Sept 2023

Version 1.0.5

Added the ability to specify the use of an artificial horizon for a sun sight.

3.0 out of 5

1 Rating

Good concept but broken

Good concept of an app to teach CelNav but unfortunately when I take several sights I can’t then proceed to doing the sight reductions. The app doesn’t do anything after that. I hope this can be fixed in a future update because I would find it useful.

The developer, Richard Craddock, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.