# Sightgeist

> Offline celestial navigation

Canonical page: [https://chrome-stats.com/d/com.dhs.grayday.sightgeist](https://chrome-stats.com/d/com.dhs.grayday.sightgeist)

## Overview

- **ID:** `com.dhs.grayday.sightgeist`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** DanShan
- **Category:** EDUCATION
- **Downloads:** 9
- **Version:** 2.0
- **Last updated:** 2026-08-13
- **First published:** 2025-07-06
- **Publisher country:** CH
- **Size:** 3.15 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.dhs.grayday.sightgeist)
- **Privacy policy:** [https://sites.google.com/view/privacy-policy-sightgeist/home](https://sites.google.com/view/privacy-policy-sightgeist/home)

## Description

SightGeist is a simple, offline tool for traditional celestial navigation. It runs entirely on your device—no internet connection or data sharing required.<br><br>It offers sight reductions of sun, moon, the traditional navigational stars and  planets.<br><br>Simply enter assumed latitude/longitude, date/time, observed altitude (plus index error and eye height), then choose the body you’ve sighted. SightGeist  returns the declination, GHA, calculated/true altitude, intercept and bearing. It also features a sky plotter for precomputing sights, a log and running fixes.<br><br>Ideal for students, navigators and amateurs who want to explore celestial sight-reductions without online services or ad networks. If you enjoy understanding each stage of the computation, this app keeps everything on-device.

## Rankings

- #2,818,882 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_COARSE_LOCATION`
- `android.permission.ACCESS_FINE_LOCATION`
- `com.android.vending.CHECK_LICENSE`
- `com.dhs.grayday.sightgeist.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.dhs.grayday.sightgeist)