Call for Observation Time on Optical Telescopes Now Open

The Europlanet Telescope Network is cooperating with the OPTICON Alliance to support access to optical facilities. Observers from the planetary community are encouraged to apply.

Optical call for proposals 2026A

We are pleased to announce that the OPTICON 2026A call for proposals is now open, with observing time available on the participating facilities.

As the number of participating facilities in this call is limited, applicants are also encouraged to check the relevant telescope or observatory website in case any facility requires specific additional information. Applicants may request observing time on multiple facilities through a single proposal. Late applications will not be considered. Please note that, for this call, applications are invited from the international community excluding USA-based observers. It is expected that future calls will broaden eligibility to include USA-based observers. Applicants submitting a proposal will be expected to provide feedback on at least one anonymised proposal as part of the review process.

Note: TBL and Aristarchos facilities will be available for future calls, but are currently in the process of being upgraded. Please also consider the BHTOM network of telescopes for time-domain observations.

The call for proposals will close on April 17th 2026 at UT 23:59.