# AstroExposure

> Astro Exposure Calculator

Canonical page: [https://chrome-stats.com/d/id6793020002](https://chrome-stats.com/d/id6793020002)

## Overview

- **ID:** `id6793020002`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Piriou Alain
- **Category:** Photo & Video
- **Version:** 1.0
- **Last updated:** 2026-09-14
- **First published:** 2026-09-13
- **Size:** 5.73 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/astroexposure/id6793020002)
- **Privacy policy:** [https://gist.github.com/astroexposure/802a160dd36800de8bd5f47609308cc6](https://gist.github.com/astroexposure/802a160dd36800de8bd5f47609308cc6)

## Description

AstroExposure helps you quickly calculate the ideal exposure time for photographing stars without trailing, using the 500 rule (for beginners) or the NPF rule.

AstroExposure is a simple, precise calculator for planning your night sky photography.

Choose your calculation method, enter your focal length, aperture, and sensor specifications, and instantly get a recommended exposure time to minimize star trailing.

The app supports the most widely used astrophotography rules, including the 500 Rule and the NPF Rule. You can also select a camera from the built-in database, adjust settings manually, and save your favorite configurations.

Key features:
• Astrophotography exposure time calculation
• 500 Rule and NPF Rule support
• Sensor or camera selection
• Focal length, aperture, and pixel size settings
• Favorites for quick access to your settings
• Clean, fast, and distraction-free interface

AstroExposure is designed for photographers who want to spend less time calculating and more time under the stars.

## Rankings

- #1,366,546 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6793020002)