AstroChallenge 2016 Day 0

Dear participants

Slides shared during Day 0 may be found here. You may be please to know that the slides on estimation may be downloaded here.

See you again on 8th June at Day 1, LT27 NUS, Faculty of Science.

Angels (or Devils) of AstroChallenge 2016

AstroChallenge 2016 Summary Booklet

Dear Participants

The Quiz-masters for this year’s AstroChallenge 2016 decided to be real nice and have prepared a set of summary notes tailored specifically based on the demands of the syllabus for your reference. It is a quick guide with minimal information and should not be studied alone without further reference. We also included some references used in the compilation of the notes at the bottom of the booklet. It is likely that this set of notes will be continually improved on over the years as well.

In any case, happy school holidays and see you soon on 1st June at the Yusof Ishak House Student Lounge, National University Singapore! Looking forward to judge your videos!

Note: if there are conceptual errors do feel free to inform us, though we hope that it is most unlikely to happen.

AstroChallenge 2016

Extension of Registration Date

Dear all, registration has been extended till 23rd May, next Monday. Should there be more teams who are interested to join us for AstroChallenge 2016, do sign up before the final closing date!

Information Letter for AC2016

Dear Participants,

The AC Information Letter (and associated information about the Project Round) may be found here. Please note to register online by 15th May 2016.

Should you have any queries, you may contact us via email, or our Facebook Page.

Update (20/4/2016): We have removed the requirement for indemnity form having been notified that by MOE directive, students are not allowed to take part in activities that requires them to sign indemnity.

Invitation to AC2016

Dear all,

We are pleased to invite you to take part in AstroChallenge 2016, Singapore’s largest astronomy competition! Prospective participants may view the Invitation Letter and peruse past papers here.

To aid preparation, we have also included a set of guidelines about the content of AstroChallenge, as well as the full syllabus. Should you have any enquiries, please email us at

PS: For future updates, do like our new Facebook page!

AC 2015 Photos are out!

The Day 1 and Day 2 photos have been uploaded to our Facebook Page

AstroChallenge 2015 Results, Questions and Solutions

As promised, the AstroChallenge questions and solutions have been released. As usual practice, the top 50% scores for each round have also been released. All this can be downloaded under the tab ‘More Information On AstroChallenge

Photos of AstroChallenge 2015 will be uploaded at a later date directly to our Facebook Page. Stay tuned!

PS: Should any schools wish to enquire about their scores, please contact us directly at, or our Head Quizmaster at more<dot>options<d0t>exist<at>gmail<d0t>com

AstroChallenge 2015 Champions!

After the AstroChallenge 2015 Finals held at LT27, Faculty of Science, National University of Singapore, the champions of this year’s AstroChallenge for both the Senior and Junior Category have emerged!

For the Junior Category

Best Astronomer: Lee Vint Ve, Raffles Institution

Best Project: Bukit Panjang Government High, Team 2

2nd Runner Up: NUS High, Team 1

1st Runner Up: Bukit Panjang Government High, Team 1

Junior Champions: Raffles Institution, Team 1


For the Senior Category

Best Astronomer: Keven Loo, Hwa Chong Institution

Best Project: Raffles Institution, Team 1

Best Observation Team: Raffles Institution

Best Newcomer: Ngee Ann Polytechnic

2nd Runner Up: Victoria Junior College, Team 3

1st Runner Up: Hwa Chong Institution, Team 1

Senior Champions: Raffles Institution, Team 1

Congratulations to Raffles Institution in claiming the challenge trophies for both the Senior and Junior Category this year!

We hope that it has been a memorable and educational experience for everyone who had embarked on the journey with us in both Day 1 and Day 2.

Once again, congratulations to everyone and we hope to see you again next year!

AC Project Round Brief

As promised, the AC Project Round Brief can be found here.

Note for Senior Observation Round Teams

All schools participating in the Senior Observation Round will have to inform the Quizmasters of the following details on Day 1:

  • Names of the participants in the Observation Round
  • Telescope/Mount used (if different from registration)
  • All reference materials that will be used during the Observation Round (to be submitted for review)
  • Any other materials/equipment that will be used during the Observation Round

The deadline for this declaration will be 1330 hours on Day 1 (before the start of the DRQ Round). All non-electronic reference materials will be submitted for review during declaration. Electronic reference materials (e.g. Stellarium on laptops) do NOT need to be submitted for review, but they need to be declared to the Quizmasters.

Approved reference materials will be returned during the Observation Round. Non-approved references will only be returned after the Observation Round ends.

Finally, as the Observation Round is meant to mimic an actual observation session, teams are encouraged to bring items that are typically used in observation sessions (e.g. red torch lights, trash bags/rain covers in case of wet weather, mats etc.)

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