All IAU named stars are collected from IAU-Catalog of Star Names
Last updated: November 29, 2025
iau_data.csv:
- Proper Names
- WGSN ID
- Desgination
- HIP
- Bayer ID
- Constellation
- Origin
- Ethnic/Cultural Group/Language
- Reference
- Additional Information
- Date of Adoption
star_names.csv data is collected via automatic web scraping from in-the-sky.org and wikipedia.org (and some manual additions
- Common Name
- Right Ascension (HH.MM.SS)
- Declination (DD.SS)
- Magnitude (V, Visual)
- Proper Motion Speed (mas/yr)
- Proper Motion Angle (DD.SS)
- Proper Motion RA (mas/yr)
- Proper Motion DEC (mas/yr)
- Alternative Names
- URL
Note
IAU WGSN distinguishes between the star Nganurganity and Unurgunite, even though they share the same Designation (HR 2646) and HIP (33856) that both represent the star Sigma Canis Majoris. In the star_data.csv this will be listed as Nganurganity with Unurgunite in the list of alternative names
Important
Betelgeuse's companion star, Betelgeuse B (offically named Siwarha) was declared on July 24, 2025 and, as of yet, has no designation or proper motion so it is not currently included in stars_with_data.csv
To run or test against this github repo/fork, a development environment can be created via conda/miniconda
First, install Miniconda
Then, using the existing environment.yml, a new conda environment can be create to run against
conda env create --file environment.yml
Once the environment has been built, activate the environment:
conda activate iau_stars
Named stars specified by "IAU Catalog of Star Names" with the star position (right ascension and declination) as well as the angle and speed of proper motion from in-the-sky.org and Wikipedia where indicated