SUBSTELLAR Astrophysics Conference, 8 - 14 August 2026, Tordesillas, Valladolid, Spain

A large group of the substellar community has met in El Montico Hotel (Tordesillas, Valladolid, Spain) in the SUBSTELLAR Astrophysics Conference (SAC-2026) that took place from 08 to 14 August with the aim of bringing together researchers interested in substellar science with special emphasis on exploiting the wealth of data provided by Euclid and complementing it with other surveys and follow-up observations.

The conference was hosted and supported by the ERC Advanced Grant SUBSTELLAR . All member of the team attended the conference and presented a talk. The link to the presentation will be provided soon:

Eduardo Martín: Substellar Astrophysics in the Euclid era

Marusa Zerjal: Photometric properties of Ultracool Dwarfs in Euclid

Carlos Domínguez: Spectroscopic search, classification and analysis of ultracool dwarfs in Euclid Q1 data [ONLINE]

Nafise Sedighi: Characterizing Ultracool Dwarfs in the Euclid Era with ATMO Models

Khalid Barkaoui: What we can learn from transiting BDs [ONLINE]

Sara Muñoz Torres: Expanding the Substellar Census: New Binary Candidates from the Euclid Mission

Styliani Tsilia: The Very Low-Mass Field IMF in the Euclid Era

Nikola Vitas: Unsupervised ML for identification of UCDs in the EUCLID survey

As part of conference programme a special session was devoted to observing the total eclipse that took place in the evening of August 12th, 2026. Nikola Vitas, Substellar project postdoctoral researcher, presented a talk titled "The Solar Eclipse". It was also organized a experience Eclipse in a vineyard for observing and enjoying the Eclipse in a renowned vineyard Cepa21.

The proceedings of the SAC-2026 will be published as part of the conference series of Astronomische Nachrichten.

More details at SUBSTELLAR ASTROPHYSICS CONFERENCE .