Frequently Asked Questions
What is the focus of the symposium?
The symposium will address critical knowledge gaps in solar and stellar physics, leveraging recent advancements and fostering collaboration between traditionally independent solar and stellar communities. This event aims to strategically align with pivotal advancements in solar missions and ground-based instrumentation, offering a timely platform for knowledge exchange.

Who is organizing the symposium?
The symposium is organized by a Scientific Organizing Committee comprising experts from renowned institutions worldwide. This ensures a diverse and comprehensive exploration of multi-scale solar and stellar activity.

What themes will the symposium cover?
The programme will cover a broad range of themes including:
Advancements in Solar and Stellar Observatories and Instrumentation
Solar and Stellar Energy Release Processes and Multi-Layer Transport
Solar-Stellar Magnetic Variability and its Impact on the Planetary Environment
Machine Learning in Solar and Stellar Research
Helio/Astero-seismology


Where and when will the symposium take place?
The symposium will be held in Medellín, Colombia, known as the city of “Eternal Spring” due to its pleasant climate and picturesque landscapes. Medellín is a major hub for academic studies and tourism, and has been awarded prestigious prizes for urban development and innovation. The symposium will take place from July 21-25, 2025.

What are the important dates to remember?
21 July 2024: First announcement
21 October 2024: Second announcement
21 October 2024: Abstract submission opens
21 November 2024: Registration opens
21 January 2025: IAU Travel Grants deadline
21 January 2025: Abstract submission deadline (oral)
21 March 2025: Abstract submission deadline (poster)
21 March 2025: Communication of selected oral contributions and grants awarded
21 April 2025: Communication of selected poster contributions
21 April 2025: Early registration deadline
21 May 2025: Registration deadline
21-25 July 2025: IAU Symposium 400 in Medellín
21 August 2025: Proceeding submission deadline


Why Medellín?
Medellín, located in the heart of Colombia’s coffee region, is recognized for its pleasant climate and picturesque landscapes. Over the past 20 years, it has gained acclaim for its urban development and innovation, making it an ideal location for international academic gatherings.

How can I participate?
You can participate by registering and submitting an abstract for oral or poster presentation. Keep an eye on the important dates for deadlines regarding registration, abstract submission, and travel grants.

Who should attend?
The symposium is intended for researchers, academics, and students involved in solar and stellar physics. It offers a unique opportunity for those looking to bridge the gap between these two traditionally independent communities and leverage recent advancements in the field.

What is the registration process?
Registration opens on November 21, 2024. You can register online through the symposium's official website. Early registration ends on April 21, 2025, and the final registration deadline is May 21, 2025.

Are there any travel grants available?
Yes, there are travel grants available for participants. The deadline to apply for travel grants is January 21, 2025. Details on how to apply can be found soon on the symposium's website.

How do I submit an abstract?
Abstract submission opens on November 21, 2024. The deadline for abstract submission is January 21, 2025 for oral, and March 21, 2025 and for poster. Submission guidelines and procedures will be provided on the symposium's website.

When will I know if my abstract has been accepted?
Notifications of selected oral and poster contributions, as well as grants awarded, will be communicated by March 21, 2025 for oral, and Abril 21, 2025 for poster.

What kind of presentations can I expect?
The symposium will feature a mix of keynote lectures, oral presentations, and poster sessions, covering a wide array of topics in solar and stellar physics.

Will there be opportunities for networking and collaboration?
Absolutely! The symposium is designed to foster collaboration between solar and stellar communities. There will be various networking sessions, social events, and opportunities to engage with fellow researchers and experts in the field.

What are the accommodation options in Medellín?
Medellín offers a range of accommodation options to suit different budgets, from luxury hotels to budget-friendly hostels. Information about recommended accommodations will be available on the symposium's website.

What should I do if I need a visa to travel to Colombia?
Participants requiring a visa to enter Colombia should apply well in advance. The symposium website will provide information and assistance regarding visa applications.

How can I stay updated on symposium news and updates?
For the latest news and updates, regularly check the symposium's official website. Important announcements will also be shared via email.

Who can I contact for further information?
For any additional questions or information, you can contact the symposium's organizing committee via the contact details provided on the symposium's website.


Grabado del Observatorio de 1876