| A1 |
Lunar Features
Produce a series of naked-eye drawings of three lunar surface features.
Use them to show their changing appearance at different lunar phases. |
Notes |
| A2 |
Meteor Shower
Observe a meteor shower. Record meteor trails on a drawing of the
stellar background from sketches and estimate magnitudes of the meteors.
Locate and show the position of the radiant. |
Notes |
| A3 |
Drawings of Lunar or Solar Eclipse
Using a suitable method of observation (lunar — direct, solar — pinhole
projection), produce a series of drawings showing the progress of a lunar or
solar eclipse.
WARNING: The Sun must NOT be viewed directly, with or
without optical aids. |
Notes |
| A4 |
Constellation Drawings
Observe and make detailed drawings of three different constellations,
recording dates, times, seeing and weather conditions and noting colours (if
possible) and magnitudes by comparison with reference stars. |
Notes |
| A5 |
Drawings of Celestial Event
Produce a series of drawings to record the passage of a suitable
celestial event, for example a transit, occultation or comet. |
Notes |
| A6 |
Shadow Stick
Use a shadow stick to record the direction of the Sun at different times
on at least two days and hence determine (a) the time of local noon and (b)
the observer’s longitude. |
Notes |
| A7 |
Levels of Light Pollution
Use repeated observations of the faintest stars observable to quantify
the effect of light pollution at two different sites. |
Notes |
| A8 |
Sunspots
Use a pinhole to project an image of the Sun onto a suitable
background and observe and record sunspots over a sufficiently long period
of time to determine the Sun’s rotation period.
WARNING: The Sun must NOT be viewed directly, with or
without optical aids. |
Notes |
| A9 |
Light Curve of a Variable Star
Use a series of naked-eye estimates of the magnitude of a suitable
variable star over a sufficient period of time to determine the period of
the star. |
Notes |
| A10 |
Estimating Stellar Density
By counting the numbers of visible stars within a certain area of sky,
estimate and compare the density of stars in the sky, parallel with and
perpendicular to the plane of the Milky Way. |
Notes |