BBC Sky at Night - UK (2021-08)

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The Moon

Moonwatch

Deep-Sky Tour

The Big Three

Spectacular Perseids (p46)

Ganymede occults Europa (p47)

The Aurigids (p47)

Calendar

highlights

Optimal Poor

Morning

twilight

Daytime Evening

twilight

Night

'DUNƅUVW

quarter)

Light (full

Moon)

Dark (last

quarter)

To t a l d a r k n e s s

(new Moon)

Observability

Best viewed

Sky brightness

during lunar phases

SC

IC

OP

Inferior conjunction

(Mercury & Venus only)

Superior conjunction

Planet at opposition

Meteor radiant peak

Planets in conjunction

Full Moon

First

quarter

Last

quarter

New Moon

KEY

58 BBC Sky at Night Magazine July 2021

AT A GLANCE How the Sky Guide events will appear in August

5 August: 12%-lit waning crescent Moon partially occults M35

10 August: 5%-lit waxing crescent Moon near Venus

21 August: Full Moon near Jupiter and Saturn

Perseid meteor shower

Mercury

Venus

Mars

Jupiter

Saturn

Uranus

Neptune

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