Astrochallenge 2020 Announcements

Dear All,

We apologize for the long wait you have to endure for us to come up with the updated Information letterand Project Round Infosheet. There were many logistical changes we have to make due to the ongoing COVID-19 pandemic.

In view of the situation, AstroChallenge 2020 will be held online on 5thSeptember, 5thDecember and 9thDecember 2020. Due to the change in format of AstroChallenge 2020, we have adjusted several components of AstroChallenge this year.

We would kindly implore you to read the updated Information Letter and Project Round Infosheet closely.

We would like to take this opportunity to announce that registration for AstroChallenge 2020 is reopened and the deadline is 3rdDecember 2020.

As usual, if you should have any queries, feel free to email us. We will get back to you as soon as we can.

We wish you Clear Skies ahead and thank you for your support for AstroChallenge!


The Astrochallenge Organizing Team of 2020

COVID-19: AstroChallenge 2020 Contingency Plans

In view of the developing COVID-19 situation, this post serves to address the activation of our contingency plan for an online-only format (“AC Online”) for AstroChallenge 2020. Please read the AstroChallenge 2020 Contingency Plans for details of the format changes in accordance to the contingency plans of AstroChallenge 2020.

We understand that this is an entirely novel situation for teachers, students and organizers alike, the organizing committee of AstroChallenge 2020 has decided to extend the registration deadline to 1st May 2020. The committee would also like to find out your interest in participating in AstroChallenge 2020, in view of the format changes. This will be of great help to the organising committee in logistical arrangements for the event. Please kindly reply to us to indicate your interest in participation.

Do note that registration has to be performed online through before the deadline. Indications of interest in participation through email do not register your team for AstroChallenge 2020.

If there is any concern or query regarding these format revisions or AstroChallenge 2020 in general, you may contact the organising committee at to seek further clarifications. We seek your understanding in these trying times and we look forward to bringing you a rigourous, challenging and fun competition!

Thanks and Best Regards
Grace Huang Wei (Ms)
Chairperson of AstroChallenge 2020
Vice-President of NUS Astronomical Society

AstroChallenge 2020

Dear all,

We would like to cordially invite you to participate in AstroChallenge 2020.  This year’s AstroChallenge 2020 will be held on 23rd May, 30th May and 13th June 2020. Registration can be performed at this link. Please register under “Junior” if either you are a secondary school or if you are enrolled in the first 4 years of an IP/IB school. If you are enrolled in a Junior College, Polytechnic or the last 2 years of an IP/IB school, please register under “Senior”.

With this, we are proud to present to you the list of format changes for AstroChallenge 2020. These changes will mainly affect the Senior teams during Observation Round.

We are also delighted to present to you the 20 questions and important information (including the submission format and rubrics) regarding the Project Round. They are in the Project Round Infosheet

If you have any query with regards to AstroChallenge 2020, kindly direct them to Furthermore, do keep a lookout on our facebook page for more updates on information pertaining to AC2020.

AC 2020 Organizing Committee

AC2019 Hall of Fame & Papers

Dear All,

The AC2019 Hall of Fame has now been uploaded, and may be found here. We have also uploaded the Day 1 question papers and partial solutions onto our website. Solutions to the Team Round will be uploaded shortly.

For photos of AC2019, as well as the top 3 videos for each category, please do visit our Facebook page!

Should you have any queries or feedback regarding AC2019, feel free to email us.

All the best for AC2020!

The AC2019 Organizing Committee

End of AstroChallenge 2019

Dear all, thank you for participating in AstroChallenge 2019. We hope that you had a memorable experience and attained new knowledge in astronomy. We strongly believe in our vision: to enhance student’s interest in astronomy and to foster close inter-school ties in this field. Your keen interest in this AstroChallenge is a solid proof to it.

Below is the list of award winners of AstroChallenge 2019:

Junior Category:

  • Most Popular Exhibit: Bukit Panjang Government High School Team 2
  • Best Project Exhibit: National Junior College
  • Best Video: Raffles Girls School Team 2
  • Best Astronomer: Choong Kai Zhe (Raffles Institution Team 1)
  • 2nd Runners-Up: NUS High School of Math and Science Team 1
  • 1st Runners-Up: Raffles Institution Team 1
  • Champion: Bukit Panjang Government High School Team 1

Senior Category:

  • Most Popular Exhibit: Hwa Chong Institution Team 3
  • Best Project Exhibit: River Valley High School
  • Best Video: Victoria Junior College Team 2
  • Best Astronomer: Yang Yuchen (Hwa Chong Institution Team 1)
  • Best Observation: Raffles Institution
  • 2nd Runners-Up: Hwa Chong Institution Team 1
  • 1st Runners-Up: Raffles Institution Team 1
  • Champion: NUS High School of Math and Science Team 1

Congratulations to all the prize recipients! We hope that all of you have meaningful takeaways from this event.

We would also want to hear from you how you find AstroChallenge 2019. Please take a few minutes to complete the feedback form at: Your input can help us make the next AC even better! Looking forward to seeing you again in AstroChallenge 2020.

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