New this year:

Conference registration, abstract submission, final oral presentations and posters upload, are done entirely through your MaSF2A account:

  1. Log in to your MaSF2A account and update your profile if necessary.
  2. Fill out the registration form. (in “Registration, Conference”/”My registration for Days 2026”)
  3. Pay your registration fees (or check your fee exemption conditions on your profile).
  4. Submit an abstract.
  5. Access your personalized program.
  6. Then, after your abstract has been accepted, but at least 24 hours before your session, return to submit your final presentations and posters.

Fees

On-site participation:

  • SF2A members: 100 € before May 12th 23h59 – 140 € between May 13th and June 2nd 23h59
  • Non-SF2A members: 150 € before May 12th 23h59 – 190 € between May 13th and June 2nd 23h59
  • Additional late fee of 190 € for on–site registration after June 2nd.

Online participation:

  • SF2A members: 30 € before June 12th 23h59
  • Non-SF2A members: 70 € before June 12th 23h59
  • Additional late fee of 90 € for online registration after June 12th.

Registration fees waived for early registration for:

To benefit from this registration fee exemption, it is compulsory to register before the deadline by following the links below. Otherwise, the above-mentioned surcharges may apply.

New this year: possibility of accompanying persons!

To make participation easier for everyone, we are offering the option to be accompanied this year. The accompanying person will have access to the conference venue and may attend social events, but will not participate in the scientific sessions. This option is particularly suitable for medical or comfort reasons.

Fee: Registration for the accompanying person is available at 50% of the main participant’s fee. The payment will be also on your MaSF2A account.

Feel free to contact us for any questions or further information!

*Maybe* new this year: childcare system!

We are trying to set up a childcare system for parents who want it. To do this, we need to know by March, 9th who is interested, how many children are involved and their ages (maximum 6 years old). So please fill this information in the registration form as early as possible. We will confirm the childcare system as soon as possible.

Feel free to contact us for any questions or further information!

Code of conduct

People participating in the event agree to follow the code of conduct of the SF2A Conference.

Eric Josselin (eric.josselin@umontpellier.fr) and Maïca Clavel (maica.clavel@irap.omp.eu) can be contacted regarding any problem related to the Code of Conduct.

Payment

The payment is done online in CB on yourMaSF2A account.

Please note that to benefit from the “Members” rate or “Students/Doctoral students” waiver, you must first pay your 2026 membership fee or update your status on your MaSF2A account.

 

Grants for post-doctorants and PhD candidates

Are you a SF2A member and a post-doc or PhD candidate, who have already paid your yearly membership fees, abroad and you could not participate in the SF2A Conference without a little financial help?  In this case, the SF2A can allocate you a grant. If you are interested, please send, before March 2nd, to the President of SF2A with a copy to the secretary, a concise “motivation” letter accompanied by a short CV. Tell us which sessions you would like to attend and the realistic amount you would need (registration + accommodation + transport) to participate or to supplement funding already partially acquired. The format of these documents is free.

If your request is accepted, the SF2A will reimburse you the costs (adjusted to the actual amount), on invoice after the conference. A request for an advance will however be possible.

Contributions (abstracts)

Deadline to submit an abstract for workshops is April 10th.

The submission of a contribution (or two) can be done on your MaSF2A account in “Registration, Conference”, and “My abstracts”. This step is possible once you have validated/paid your registration. You could then select the workshop in which you wish to submit your contribution (talk or poster). Up to two contributions can be submitted. If you want to submit more contributions, please contact the system administrator.

ePosters: only eposters will be available. They will be display online for all participants available from their computers. ePosters allow presenters to more effectively convey information that would not be feasible with a traditional printed poster, and it improves visualization to attract the attention of attendees while also conserving the environment!

Later on, a “book of abstracts” will be available online (and only online).

The proceedings of the conference give an annual overview of the current state of French astronomy. They will be published in an electronic format in English and made available on the SF2A website. They will be referenced in ADS. The instructions for the authors will be given later.

Refund conditions

As stated in the Terms and Conditions of Use, in the event of cancellation by the participant at least one month before the start of the SF2A Days, the SF2A will refund the full registration fee, minus a fixed administrative fee of €10. After this deadline, no refund requests will be accepted, except in the event of cancellation of the event by the SF2A.

Conditions Générales d’Utilisation SF2A (version du 05/02/2026)