The CCI (Comité Científico Internacional, or International Scientific Committee of the Canary Islands Observatories) have issued the 2026-2027 Call for Proposals for their International Time Programme (ITP). Applications must be received by 23:59 UTC on 9th March 2026.

The call is open to astronomers from all countries, and up to 80 hours/year are available on each of these telescopes -

• Liverpool Telescope
• Gran Telescopio Canarias (GTC)
• William Herschel Telescope (WHT)
• Telescopio Nazionale Galileo (TNG)
• Nordic Optical Telescope (NOT)
• STELLA (STELLar Activity)

Proposals can also request up to 15 nights/year on the Telescopio Nazionale Galileo (TNG) and Mercator telescopes.

More information, including further details of the time available, and of the new online proposal submission procedure, are in the call document. The document may be downloaded below, or from the main CCI website.

• Call for Proposals [122 kB PDF]
• CCI ITP Code of Conduct [83 kB PDF]

As always, you may also apply for LT Reactive Time and Priority Z Time outside of these semester-based applications, at any time throughout the year.