Messier Journal

Messier Journal

Messier Object Photo Journal

3 ratings
3 reviews
$0.99

Details

  • Released
  • Updated
  • October 16, 2025
  • June 28, 2026

Features

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About

This app helps Northern Hemisphere astronomers and astrophotographers discover, locate, and journal all 110 Messier objects. It provides detailed information, star maps, and tools to record observations and upload photos.

โœ“Learn about 110 Messier objects
โœ“Locate objects with star maps
โœ“Filter objects by constellation and type
โœ“Record observation details
โœ“Upload astrophotography
โœ“Track spotted object statistics
โœ“Generate object collages
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What's New in Messier Journal

1.3

June 28, 2026

-updated object descriptions & photos -added object size field (arcmins)

Charts

Top Paid

๐Ÿ“‰ย 173-29

Reference

This app dropped -29 positions in Reference chart.

Last updated on July 19, 2026.

User reviews

Wow amazing app

This app is so cool. They have thought of everything. This app not only helps you find the object easily it even shows you where it is located in reference to the proximity to our own place in the Milky Way. Plus it gives you photos of what the object looks like and it is super easy to navigate in. Absolutely perfect. The one extra thing I would like to see is the size of the objects in arc minutes. But that is minor compared to all this app offers. Get it now.
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Go-to astrophotography companion

Messier Journal has quickly become my go-to companion for astrophotography and visual observing. It strikes a great balance between being a clean logbook and a genuinely useful reference tool. I love how easy it is to record each Messier object Iโ€™ve shot or observed, attach photos, and have the app automatically pull date/time details from metadata. That alone saves a ton of manual tracking.

The layout is simple and well thought out, so I can find objects fast, check visibility and difficulty notes, and keep my progress organized without feeling like Iโ€™m managing a spreadsheet. The built-in scientific info is concise but solid, and the ability to add my own notes (seeing conditions, gear used, processing ideas, โ€œretry with longer exposure,โ€ etc.) makes it feel tailored to my workflow.

Overall, itโ€™s a polished, practical app that makes documenting Messier sessions both easier and more enjoyable. Highly recommended for anyone working through the catalog.
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Great for documenting Messier Objects!

I am enjoying this app a lot. Itโ€™s a great tool for easily documenting your Messier Object Astrophotography. I was planning to use an excel spreadsheet before I found this app, and Iโ€™m glad I found it! The interface is clean and intuitive, and I really like the scientific information. Itโ€™s also nice to see info on shooting difficulty, location, etc.

Itโ€™s super easy to upload photos, and it will pull the date/time from the metadata. I appreciate the ability to add notes as well for images I want to collect more data on, or spend more time post-processing.

Itโ€™s a great informational and organizational tool!
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Developer apps

FAQ

What is Messier Journal used for?

Messier Journal is designed for astronomers and astrophotographers to learn about, locate, and keep a detailed record of all 110 Messier objects. It allows users to upload photos and track their progress.

What information does Messier Journal provide for each object?

For each of the 110 Messier objects, Messier Journal includes brief descriptions, photos, detailed star maps, and right-ascension/declination coordinates. It also offers insights into what to expect with different telescope sizes.

Can I record my own observations in Messier Journal?

Yes, you can record detailed notes about your observations, including the date, time, location, equipment used, magnification, and any other pertinent details. You can also upload your own photos and sketches.

Does Messier Journal support users outside the Northern Hemisphere?

Messier Journal is specifically designed for users in the Northern Hemisphere. While it contains information on all 110 Messier objects, its location and filtering features are optimized for this region.

How much does Messier Journal cost?

Messier Journal is a paid application, available for $0.99. This one-time purchase grants you access to all its features.

What devices is Messier Journal compatible with?

Messier Journal is compatible with both iPhone and iPad devices. It is rated for ages 4 and up.

How often is Messier Journal updated?

The latest version of Messier Journal is 1.2, which was last updated on March 30, 2026. Updates typically include improvements and new features based on user feedback.

Does Messier Journal have ads?

No, Messier Journal does not contain advertisements. It is a paid application with no in-app purchases or ads, offering an uninterrupted user experience.