International Star Naming

The most popular free star naming service

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Zodiac: Aries
Mar 21 - Apr 20
Read more about Aries.
Do you want to buy a star? Check our tutorial before you spend money!

How many stars are there in the

There are currently more than 100 million stars in our data base.

Where does all the data about the stars come from and how accurate is it?

There are several star catalogs that have been created over the past decades and centuries. Our data base is a compilation of several star catalogs. The most comprehensive catalogs that served as a basis are the UCAC3 catalog and the Tycho-2 star catalog. Together,they both comprise more than 100 million stars in the night sky. This data was amended by data from the Hipparcos catalog, which contains more than 100,000 stars together with high-precision position information.
Both the Tycho-2 and the Hipparcos star catalog are the result of the European Space Agency's astrometric mission called Hipparcos. The catalogs are the result of several years of precise observations of the Hipparcos-satellite. The data in our data base (such as position information, constellation information, magnitude, distance, etc.) is therefore as precise as the information in these catalogs.

Why is it free to name a star at while other web sites charge money?

The answer is simple: Nobody owns the stars, therefore nobody should sell them. Moreover, nobody should sell star names. The only official authority to name stars is the International Astronomical Union (IAU). And they won't let you name a star. Therefore, any star naming service you find on the Internet will simply keep your name in their private database, but it will never be the star's official name.
If you don't believe this, read this article on
Also, this star naming FAQ gives a really good overview of the topic.
Therefore, naming a star is a pure symbolic act. It is just for fun!
And that's also why naming a star is totally free at We do it just for fun! offers an interactive star chart that allows everybody to find your star. At, every star has a profile page, and you will get a personal login to the profile page of the star you name. You can post messages on this profile page, and you can add other stars as friends thus creating your personal stellar network. Read what's going on in your network and comment on posts of your friends.
Click here to learn how to name a star at

Are you affiliated with NASA or ESA?

No, we are not affiliated with NASA or ESA in any way.

Name a star for free!

... because it is exactly the same! (Why?)

Name your personal star with the most popular free sky registry. Customize your documents and download them instantly. Free certificate and online presence!
A personal star is the perfect gift for your loved ones. Pick a constellation and we will take you to a free star. Your star's certificate is only a few mouse clicks away.
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