1
Atlas of Space
atlasof.spaceAlso covers space · same kind of website
Atlas of Space interactively explores planets, moons, asteroids, and other objects in the Solar System.
Alternatives
The Best Space Object Comparison Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like Space Object Comparison? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
About Space Object Comparisonmr21.github.io/space-object-comparison
VisitSpace Object Comparison interactively compares the sizes of planets and stars.
Top picks at a glance
First suggestionAtlas of SpaceAtlas of Space interactively explores planets, moons…Free or freemium optionNASA EbooksNASA e-Books provides a catalog of electronic books…Open source optionAndroidPlanisphereAndroidPlanisphere provides a star chart showing the Sun…Another optionUniverse AtlasUniverse Atlas visualizes scale from the observable…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Atlas of Space | — | Not stated | Web |
| 2 | Universe Atlas | — | Not stated | Web |
| 3 | Space Time | — | Not stated | Web |
| 4 | AndroidPlanisphere | — | Yes | Android |
| 5 | Map of the Universe | — | Not stated | Web |
| 6 | 100,000 Stars | — | Not stated | Web |
| 7 | 1 Pixel moon | — | Not stated | Web |
| 8 | Stellarium | — | Not stated | Linux, macOS, Web |
| 9 | Planet Globe | — | Not stated | Web |
| 10 | ExoplanetArchive | — | Not stated | Web |
All Space Object Comparison alternatives
2
Universe Atlas
universeatlas.orgAlso covers space · same kind of website
Universe Atlas visualizes scale from the observable universe to a proton, with real stars and planets shown at their measured sizes and distances.
3
Space Time
space.pointdynamics.comAlso covers space · same kind of website
A browser-based 3D universe explorer combines the solar system, stars, deep-sky objects, satellites, and galaxies.
4
Also covers space · open source
AndroidPlanisphere provides a star chart showing the Sun, Moon, stars, constellations, and planets for a selected location.
5
Map of the Universe
mapoftheuniverse.netAlso covers space · same kind of website
The Map of the Universe interactively maps 200,000 galaxies from the Milky Way toward the observable universe.
6
100,000 Stars
stars.chromeexperiments.comAlso covers space · same kind of website
The 100,000 Stars visualization presents nearby stars in 3D and provides controls for color and temperature.
7
1 Pixel moon
joshworth.com/dev/pixelspace/pixelspace_solars…Also covers space · same kind of website
If the Moon Were Only 1 Pixel maps solar system objects in a scale model that begins with a one-pixel Moon.
8
Stellarium
stellarium.orgAlso covers space · same kind of website
Stellarium is planetarium software that displays the sky and celestial objects.
9
Planet Globe
nbremer.github.io/planet-globeAlso covers space · same kind of website
Planet presents satellite imagery of Earth, including a visualization of images captured across a single day.
10
ExoplanetArchive
exoplanetarchive.ipac.caltech.eduAlso covers space · same kind of website
NASA’s Exoplanet Archive provides confirmed planet and candidate statistics and data about exoplanets.
11
Stellarium-Web
stellarium-web.orgAlso covers space · same kind of website
The Stellarium Web planetarium displays celestial objects in a browser-based sky view.
12
Astrogeology
astrogeology-usgs.hub.arcgis.com/pages/map-sea…Also covers space · same kind of website
The USGS Astrogeology map search lets users find planetary maps by celestial body, including planets, moons, and asteroids.
13
Sen
sen.comAlso covers space · same kind of website
Sen provides live 4K video views of Earth captured by its satellites in space.
14
Russian Space Web
russianspaceweb.comAlso covers space · same kind of website
Russian Space Web publishes history and news about the Russian space program.
15
Also covers space · same kind of website · free
NASA e-Books provides a catalog of electronic books published by the space agency.
16
JPL Photojournal
photojournal.jpl.nasa.govAlso covers space · same kind of website
NASA Photojournal provides space and mission images, animations, and videos, with topic-based browsing and search.
17
ESA
esa.intAlso covers space · same kind of website
The European Space Agency portal shares current news, strategy, and information about its programs.
18
JPL Images
jpl.nasa.gov/imagesAlso covers space · same kind of website
NASA's Jet Propulsion Laboratory Image Gallery lets visitors browse and search space photographs and science images.
19
SDO Dashboard
sdo.gsfc.nasa.gov/data/dashboardAlso covers space · same kind of website
The Solar Dynamics Observatory dashboard supports study of the Sun's influence on Earth and near-Earth space.
20
James Webb Space Telescope
science.nasa.gov/mission/webbAlso covers space · same kind of website
NASA describes the James Webb Space Telescope as an observatory studying phases throughout the history of the universe.
21
NASA
nasa.govAlso covers space · same kind of website
NASA.gov shares news, images, and videos about space exploration, scientific discovery, and aeronautics.
22
ESAWebb
esawebb.orgAlso covers space · same kind of website
ESA Webb shares news and images from the James Webb Space Telescope, including research observations.
23
Images / Videos
jda.jaxa.jp?lang=eAlso covers space · same kind of website
JAXA Digital Archives offers images from its collection, including material about launch vehicles and space missions.
24
Space Atlas
spaceatlas.techAlso covers space · same kind of website
Space Atlas tracks satellites and rocket bodies on a live 3D map, with history extending from Sputnik to today.
No alternatives match this filter.
Alternatives to similar tools
NASA24 alternativesJames Webb Space Telescope24 alternativesSDO Dashboard24 alternativesNASA Ebooks24 alternativesJPL Photojournal24 alternativesJPL Images24 alternatives
What is the best alternative to Space Object Comparison?
Based on features, tags and platforms, the closest alternatives to Space Object Comparison are Atlas of Space, Universe Atlas, and Space Time.
Is there a free alternative to Space Object Comparison?
Yes. NASA Ebooks is free or offer a free plan.
Are there open-source alternatives to Space Object Comparison?
Yes: AndroidPlanisphere.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative