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Astro ArenaGAMES AND MARATHONS
IOAA

YOUR ASTRONOMY TRAINING

Small games. A whole sky.

Recognise, locate and measure. Choose a skill and prepare for IOAA observing tasks through play.

A QUICK WARM-UPName 5 constellationsStart with recognising star patterns

CHOOSE YOUR SKILL

What will you practise today?

14 / 14

Times are estimates for a short practice. Set your own pace and session length.

Recognition4–7 min

Name the constellation

Read the star pattern and match it to the right constellation.

01 / 10Play game
Navigation5–8 min

Constellation hunt

Get a name, find its location. Build your bearings on a full sky chart.

02 / 10Play game
Recognition4–7 min

Name the star

Identify the marked bright star from its position in the star field.

03 / 10Play game
Navigation5–8 min

Star hunt

Locate a named star on the chart and sharpen your sense of the sky.

04 / 10Play game
Recognition4–8 min

Name the Messier object

Use sky position to identify one of 110 nebulae, clusters and galaxies.

05 / 10Play game
Navigation6–9 min

Messier hunt

Find the requested deep-sky object on the celestial chart.

06 / 10Play game
Memory3–6 min

Star memory

Turn over cards and pair star names with their Bayer designations.

07 / 10Play game
Measure & designations4–7 min

Bayer order

Find a constellation’s stars on the chart in Greek-letter order.

08 / 10Play game
Measure & designations5–9 min

Angular separation

Estimate the angle between two points in the sky and train spatial judgement.

09 / 10Play game
Measure & designations6–10 min

RA and declination

Read or locate equatorial coordinates in the J2000.0 system.

10 / 10Play game
Observing tasks4–7 min

Extra stars

Inspect a familiar star pattern and remove added points that do not belong on the real chart.

11 / 10Play game
Observing tasks4–7 min

Missing stars

Complete the star pattern: mark the position of a missing bright star and learn its name.

12 / 10Play game
Observing tasks5–8 min

Planets among stars

For a given date, distinguish planets from stars, mark them and identify their names.

13 / 10Play game
Observing tasks4–7 min

Place the Sun

Use the month and date to locate the Sun along the ecliptic among the stars.

14 / 10Play game

Charts: Hipparcos / HYG · Sun and planets: JPL model · photographs: 2MASS (UMass/IPAC) and DSS2 (STScI/NASA/CDS).

MARATHONS

From practice to a marathon.

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Put your skills to the test

Create a room and play a live match with friends.

Find your own pace

Session length, motion, sound and haptics.