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Observing Proposals

2026A Call for Proposals

The call will open on September 1. The deadline is October 7.

Proposal Application

Submit a proposal for Director’s discretionary time (2025A).

Anonymization Policy

Keeping the proposal review process fair.

Open Access Program

An opportunity for astronomers everywhere.

Extended Science Family

Former LCO grad students and posdocs, as well as LCO committee members, are eligible to submit proposals.

Science Collaboration

Institutions with guaranteed observing time on LCO or who are eligible to apply for LCO's share.