r/Astronomy

Community Overview
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About r/Astronomy

The amateur hobby of humanity since the dawn of time and scientific study of celestial objects.

The community at a glance

r/Astronomy is a Subreddit for Astronomers with roughly 3.2M members. It uses a forum format for communication. It is the 1st largest community in the Astronomy topic page.

Roughly 123K members have joined in the past year. Popular discussion topics include Astronomy, Telescope, and Looking For. Product recommendations often mention telescope and books.

On Reddit
3.2M Members

Community Topics

Community Features

Forum

This community has a forum

Subreddit Analysis

via GummySearch
Yearly: +123K members
Growth: +4.1% / year

Member growth over time

All time (yearly)

  • 2013: 27K members
  • 2014: 30K members
  • 2015: 18K members
  • 2016: 27K members
  • 2017: 95K members
  • 2018: 370K members
  • 2019: 431K members
  • 2020: 695K members
  • 2021: 462K members
  • 2022: 480K members
  • 2023: 194K members
  • 2024: 87K members
  • 2025: 77K members
  • 2026: 100K members

Past year (monthly)

  • Nov: 12K members
  • Dec: 9K members
  • Jan: 9K members
  • Feb: 8K members
  • Mar: 10K members
  • Apr: 16K members
  • May: 10K members
  • Jun: 11K members
  • Jul: 9K members
  • Aug: 16K members
  • Sep: 7K members
  • Oct: 4K members

Topics

  • Astronomy
    52 posts in the past month
    #1
    Astronomy
    52
  • Telescope
    20 posts in the past month
    #2
    Telescope
    20
  • Looking For
    17 posts in the past month
    #3
    Looking For
    17
  • Stars
    13 posts in the past month
    #4
    Stars
    13
  • Struggling
    12 posts in the past month
    #5
    Struggling
    12

Flair

  • Astrophotography (OC)
    52 posts in the past month
    1. Moonrise behind Burg Hohenzollern, Germany [OC]
    2. Firework Galaxy widefield
    3. Last night I was on the hunt for Neptune, I found it!
    #1
    Astrophotography (OC)
    Moonrise behind Burg Hohenzollern, Germany [OC] · Firework Galaxy widefield · Last night I was on the hunt for Neptune, I found it!
    52
  • Other: [Topic]
    9 posts in the past month
    1. “Live” Orion Nebula
    2. 18th century architectural astronomical instruments to track celestial bodies
    3. Now Leaving Earth, Come Again Soon
    #2
    Other: [Topic]
    “Live” Orion Nebula · 18th century architectural astronomical instruments to track celestial bodies · Now Leaving Earth, Come Again Soon
    9
  • Discussion: [Topic]
    9 posts in the past month
    1. Is it possible to see a pulsar from earth anywhere without radio telescope?
    2. O que você acha do buraco de minhoca e o que você e sabe e suas teorias da matéria quantica
    3. A star out of place and disappeared
    #3
    Discussion: [Topic]
    Is it possible to see a pulsar from earth anywhere without radio telescope? · O que você acha do buraco de minhoca e o que você e sabe e suas teorias da matéria quantica · A star out of place and disappeared
    9
  • Astro Research
    6 posts in the past month
    1. Ton 618
    2. Chariklo’s Rings Are Evolving
    3. Undergrad seeking advice on advanced degree
    #4
    Astro Research
    Ton 618 · Chariklo’s Rings Are Evolving · Undergrad seeking advice on advanced degree
    6
  • Astro Art (OC)
    5 posts in the past month
    1. Got back a bit of my childhood recently, and tried to make ursa major/minor
    2. Space n.12, art by me, OC
    3. The Sun really said: 😄
    #5
    Astro Art (OC)
    Got back a bit of my childhood recently, and tried to make ursa major/minor · Space n.12, art by me, OC · The Sun really said: 😄
    5

Product recommendations

  • telescope
    10 posts in the past month
    1. Best beginner telescope?
    2. Can anyone recommend a telescope around €300 for a beginner?
    3. Just starting Astrophotography, Which telescope out of these would you recommend?
    #1
    telescope
    Best beginner telescope? · Can anyone recommend a telescope around €300 for a beginner? · Just starting Astrophotography, Which telescope out of these would you recommend?
    10
  • books
    6 posts in the past month
    1. Best astronomy books and recommendation☄🌌
    2. What books would you recommend to a novice who's interested in learning more about Astronomy?
    3. Recommend book for astronomy basic calculation
    #2
    books
    Best astronomy books and recommendation☄🌌 · What books would you recommend to a novice who's interested in learning more about Astronomy? · Recommend book for astronomy basic calculation
    6
View full analysis on GummySearchSynced 10/1/2026

Frequently asked questions

Who is r/Astronomy for?
Best for Astronomers enthusiasts looking for a Reddit-based community with forum discussion.
Is r/Astronomy free to join?
This listing is not marked as paid-only. Access rules and any fees are decided by the community.
How many members does r/Astronomy have?
Roughly 3.2M members, based on figures reported by the community or its host. Member counts are approximate and change over time.
What platform is r/Astronomy on?
r/Astronomy runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
What topics does r/Astronomy cover?
On the Hive Index, r/Astronomy is organized under Astronomers.
How do I join r/Astronomy?
You can join r/Astronomy by clicking this link, or pressing the "Go to community" button above.
What are the Astronomy communities like?
Communities for space enthusiasts covering astronomy, astrophysics, astrophotography, and space exploration. Discord servers host newcomers and experts alike with dedicated channels for launches, telescope recommendations, and trivia, alongside Reddit communities for sharing images and discussing discoveries.
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Added 6/8/2023

Monthly Stats

11
Views /mo
(-15%)
10
Visitors /mo
(-9%)
0
Referrals /mo
(-100%)

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