Onsite Registration

Opening of registrations: 30 January 2023
Deadline for very early registration: 26 February 2023
Deadline for early bird registration: 30 April → 8 May 2023
Deadline for regular registration: 9 July 2023


Prices includes VAT of 23%:

  Very Early
(→ 26 Feb)
Early Bird
(→ 30 Apr 8 May)
(→ 09 Jul)
EAS Member* € 340 € 400 € 450 € 550
EAS non-member € 380 € 450 € 510 € 550
Master/PhD Student**, EAS member € 260 € 280 € 380 € 420
Master/PhD Student**, EAS non-member € 340 € 400 € 450 € 550
One-day € 230 € 250 € 280 € 300
* Membership in EAS at the moment of registration. Kuoni will validate your EAS membership based on the membership listing on the EAS website. EAS Invidividual members and EAS members for which an EAS Affiliated Society has transmitted the member's data to the EAS Office before registration are considered as EAS members.
** Student fees apply only to undergraduate and PhD students. A scan of the student card or a letter from the University on headed paper confirming the participant's student status will ber required.

Onsite registration fees include:

  • Access to all sessions (5 days, except for 'one-day' registration)
  • Coffee breaks & exhibition (5 days, except for 'one-day' registration)
  • Access to the ePosters platform, prior and during the conference
  • Access to EAS 2023 dedicated Slack space
  • Access to the recorded plenary and symposia sessions after the conference
  • Welcome Reception (on Monday)
Onsite registration fees do not include:
  • Lunches
  • Conference dinner
  • Accommodation
  • Touristic excursions
  • Travel expenses
  • Personal insurance

Online Registration

Price includes VAT of 23%:

(→ 09 Jul)
Online* € 190
* The fee applies for Master, PhD students, postdocs, researcher, faculty, EAS member or not. The prices is unique for all attendees.

Online registration fees include:

  • Access to the plenary sessions and symposia, live or recorded, on a virtual platform
  • Access to the ePosters platform, prior and during the conference
  • Access to EAS 2023 dedicated Slack space
  • Access to the recorded plenary and symposia sessions after the conference
  • Access to all accepted abstracts
Online registration fees do not include:
  • Transmission of Special and Lunch sessions will not be available on the virtual platform. It means that online participants are only able to follow Plenary sessions and Symposia remotely
  • Electronic devices (computer, screen, headphones, etc) needed to attend the conference online

All sessions will be held in English. There is no simultaneous translation provided.


Registration fee waivers and/or Grants

The European Astronomical Society (EAS) provides a limited number of registration fee waivers and grants sponsored by our organisational member Springer and by the Society itself. They are open to all participants, EAS member or not, and from all over the planet. The fee waivers and/or grants are aimed at colleagues who, for whatever reason, will have difficulty to pay their fee. This can include non-funded or unemployed students or colleagues, or retirees, but also other astronomers, from all countries.

Application for registration fee waivers and/or grants is open until March 1, 2023.

Payment terms

Full prepayment is needed prior to the conference. The final invoice(s) will be sent after the conference at no charge,

Amendment policy

As we understand the uncertainty during these unprecedented times, we offer our participants the flexibility of changing their registration from online to on-site or vice versa.

  Onsite → Online Online → Onsite
Until May 21st, 2023 Free of charge Free of charge
from May 22nd to June 9th, 2023 € 30 admin fee + € 15 bank charges deducted from the refunded amount Free of charge
from June 10th, 2023 A switch is possible, but no refund will apply € 30 admin fee added to the additional amount

Cancellation policy

All cancellations are to be addressed to the Congress Secretariat in written form at any stage prior to or during the event. E-mail: eas2023 @

Fees will be refunded after the conference, according to the following policy for cancellations received:
  • Until May 21st, 2023: 100% refund less bank charges (15 €).
  • from May 22nd to June 9th, 2023: An administration fee of 50 € will be charged, together with bank charges (15 €).
  • from June 10th, 2023 : No refund can be made.

Substitutions can be made at any time before the conference starts, by contacting the Congress Secretariat in written form. Organisers shall not be liable for refunds should visas not be obtained.

Should the onsite EAS 2023 Annual Meeting be cancelled by the organisers, participants with paid registration will be reimbursed.

Personal insurance

It is strongly recommended that onsite participants take out insurance to cover loss (including registration fees) incurred in case of cancellation, medical expenses and loss of personal effects. The Congress Organizer will not accept liability for personal injuries or for loss or damage to property belonging to participants, either during or as a result of the programme.

Data protection

We inform you that your personal data will be added to the Kuoni congress' database for information related to EAS annual meetings. By filling in the registration form, you authorize Kuoni Tumlare and the European Astronomical Society to use your personal data for the mentioned purposes (see form). EAS (as organiser) has commissioned Kuoni Congress with registration, abstract handling, hotel booking and exhibition related tasks. Kuoni Congress is a serious congress services provider respecting your privacy and protecting the personal information that we handle. All personal data is processed in accordance with the applicable data protection laws, in the light of the new EU General Data Protection Regulation 2016/679 (GDPR). To exercise your right to access to, rectification and cancellation of this information, contact the Congress Secretariat (eas2023 @


Kuoni shall act as a mediator only and cannot be held responsible for any loss incurred or any damage inflicted on persons or objects irrespective of whatsoever cause. Only written agreements shall be valid. The place of jurisdiction shall be Geneva.