top of page

Programs

File

Platform

Notes

Size

v11 users: Please note that you may be eligible for a free upgrade to v12.

See the Register page for more details.

The older v11 version is still available here (Windows) and here (macOS)

Datasets

File

Notes

Size

4 images

7 MB

39 images

68 MB

60 images

106 MB

5 images

175 MB

155 images

393 MB

900 images

187 MB

Catalogs (for offline use)

File

Notes

Size

Photometry

1.5 GB

ATLAS (up to mag 18)*

Photometry

5.6 GB

ATLAS (up to mag 20)*

Photometry

13.0 GB

Gaia EDR3*

Astrometry

13.4 GB

None

771 MB

None

1.8 GB

None

5.2 GB

* Due to their size, download links for these catalogs are made available upon request for registered Tycho users.

Notes

View the Tycho version history here.

View the Tycho user guide here.

For the best experience, it is recommended that you:

​

Tycho can be evaluated for free in demo mode using the DS1, DS2, DS3, and Ivar (night 1) datasets.  To unlock more functionality, you are invited to register the software and obtain a license key.  Please see the Register page for more details.

© 2025 by Daniel Parrott

bottom of page