Planet Earth
@iau-wgsn.bsky.social
iau.star.name
International Astronomical Union WGSN

Welcome to exopla.net 

the exoplanetarium of the IAU-Working Group on Star Names presents:
 * the IAU-Catalog of Star Names (CSN) & their etymologies
 * the 88 constellations and their real (hi)stories  
 * information about our group, work process & backgrounds

Themes

FAQ3: Our IAU-Catalog of Star Names (CSN) is a living document; it is continuously updated after regular (roughly monthly) group meetings.


Export options are given above the table.

FAQ1: Sorry, we currently don’t accept name proposals; only naming campaigns do. Modern invented star names are given to (faint) host stars of exoplanets. For bright stars, we collect and apply historical names from all over the world according to scientific criteria.

FAQ2: In research papers, please kindly use only the names from the IAU-CSN. For aspects of education and heritage preservation, we are developing name-resolvers and an encyclopaedia to keep track of all cultural names per star.
Export options are given above the table.

Star Names

Some star names are historically developed, other take from indigenous cultures and some are totally artificial.

Constellations

even if you think you know them, you still can learn something new here.

Exoplanet Names

The IAU-Catalog of Exoplanet Names stems from the

NameExoWorlds Campaigns

Blog

Our recorded talks
and public events

Some suggestions for historical experiments.

Latest News


News-Logo


Australian Prime Minister about “Ginan”

On 22 July, in his opening speech of the 48th Parliament, the Prime Minister of Australia Anthony Albanese proudly referred to the star Epsilon Crucis, as “Ginan”, describing it as[…]


Read more


WGSN Release Logo


Ten new star names

In a multimonths debate, the WGSN has worked out the distribution of ten more names in the northern skies. Note that it is part of the IAU-policy to increase cultural[…]


Read more


WGSN Release Logo


Four Chinese star names applied

In February and March, the WGSN applied four new names of traditional Chinese constellations to stars. ι Cen “Kulou” (库楼) means arsenal and storied building. It is a super-constellation in[…]


Read more



Letter from a reader

Dear friends of the IAU – WGSN, I am Paolo Palma, an elementary school teacher and visual astronomer for over 25 years. With this email I wanted to thank you[…]


Read more

IAU

at home on planet Earth

… seeking to share knowledge with all humans on this planet.

Some photographs: astronomy on planet Earth

Our world is a beautiful place – we need to take care of it!

Moon Through Telescope

Lunar eclipse, observed at Hildesheim (Europe)

Rainbow above Sahara

Observed in Mauretania (Africa)

Short before Transit of Mercury

northwest Sahara (Africa)

Inka Dark Constellations

by Jessica Gullberg