ASGuide

ASGuide

Astronomy Sky Guide

9 ratings
4 reviews
Free

Details

Released
March 10, 2020
Updated
November 1, 2026

Features

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ASGuide screenshot #10 for iPhone
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About

Explore the night sky with a personal guide to visible planets, galaxies, and stars. Plan observations, find celestial targets, and learn about discoveries with detailed information and an interactive atlas. Customize your view for nighttime use.

✓Identify visible planets, galaxies, and stars
✓Plan observation times and celestial targets
✓Filter objects by magnitude and altitude
✓Search by common name or catalog number
✓Browse solar system and deep-sky objects
✓Track moon phases and times
✓Interactive sky atlas with high-resolution imagery
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What's New in ASGuide

1.2.2

November 1, 2026

- Fix for Sky Atlas blank screen - Upgrade Aladin Sky Atlas to 3.8.2 with region mirror support

User reviews

Wonderful!

I forgot I had this app. The easy integration of the various sections of data is good. For its convenience in a small size footprint, the details zooming in on the images is surprising. Unfortunately they don’t have a real website. They use Facebook. I don’t and won’t. Social media has brought ills on the under 30 year olds.
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Great App

Perfect for astrophotography and selecting targets. Love the favourites feature. Would be cool to submit user photos of objects

Beautiful App!

This is a beautiful, stable, well-organized, and easy to use app that helps me plan my skywatching sessions.

It reports the current lunar phase and lists notable deep sky objects on display based on your location. This is a big help as I choose Messier objects to check off my list.

I like this app so much that I’d like it to do even more to help me plan my viewing. For example, it would be helpful to include solar data (sunrise/sunset), planetary data (where are the “wanderers” this evening), meteor showers, and other celestial events—e.g., conjunctions.

Even as-is, this is a high quality app. It is easily worth its current low price, and I would pay $10 for an equally well-designed app that incorporates additional information.
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Response from developer

Thank you so much for your feedback! It's been invaluable as a guide of what features to add next. In fact, an upcoming update will include solar and planet info. And definitely researching how to include the rest!

Impressed!

Fantastic app! Very impressed. Especially since it is free. This is what I needed for planning my observing sessions. Thank you!

FAQ

What celestial objects can ASGuide help me find?

ASGuide helps you discover visible planets, galaxies, nebulae, stars, and star clusters. It provides details on rise, transit, and set times for these objects.

How does ASGuide personalize my sky view?

ASGuide uses your current location and observing time to create a personalized guide. You can also select any location on Earth to explore.

Can I save objects I want to view later with ASGuide?

Yes, ASGuide allows you to save favorite objects for future viewing. You can also quickly return to recent searches and recently viewed objects.

Does ASGuide offer offline capabilities?

The provided description does not specify offline capabilities. However, it mentions using your current location or selecting any location, suggesting it may require a connection for real-time data.

What is the learning methodology of ASGuide?

ASGuide focuses on discovery and exploration by providing detailed information about celestial objects. It includes an interactive sky atlas with high-resolution imagery for learning.

How often is ASGuide updated?

The latest version is 1.2.2, last updated on 2026-11-01. While this indicates a recent update, the frequency of future updates is not specified.

Is ASGuide suitable for children?

ASGuide has an age rating of 4+, making it suitable for young users. Its educational content on astronomy can be engaging for children interested in space.

Does ASGuide have ads?

No, ASGuide does not contain advertisements. It is a completely free application without any ads.