Astronomy

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SUN. MON. TUES. WED. THURS. FRI. SAT.

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CANIS MINOR

PYXIS

CANCER

PUPPIS

MONOCEROS

LIA

ELA

TAURUS

GEMINI

ORION

CAMELO

P

PERSEUS

LYNX

AURIGA

M44

M35

Pollux

Castor

NGC

884

Capella

M38

M36

M37

Procyon

M1

Betelgeuse

M47

C NG

869

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WWW.ASTRONOMY.COM 39

Open cluster

Globular cluster

Diffuse nebula

Planetary nebula

Galaxy

W

NW

SW

MAP SYMBOLS

Note: Moon phases in the calendar vary

in size due to the distance from Earth

APRIL 2018 and are shown at 0h Universal Time.

Calendar of events

1 Mercury is in inferior

conjunction, 2 P.M. EDT

2 Mars passes 1.3° south of

Saturn, 8 A.M. EDT

3 The Moon passes 4° north of

Jupiter, 10 A.M. EDT

7 The Moon passes 1.9° north of

Saturn, 9 A.M. EDT

The Moon passes 3° north of

Mars, 2 P.M. EDT

8 The Moon is at apogee

(251,123 miles from Earth),

1:31 A.M. EDT

Last Quarter Moon

occurs at 3:18 A.M. EDT

12 The Moon passes 1.9° south

of Neptune, 7 P.M. EDT

13 Mercury is stationary,

midnight EDT

14 The Moon passes 4° south of

Mercury, 5 A.M. EDT

15 New Moon occurs at

9:57 P.M. EDT

17 Saturn is at aphelion

(936 million miles from

the Sun), 7 A.M. EDT

The Moon passes 5° south of

Venus, 3 P.M. EDT

Saturn is stationary, 10 P.M. EDT

18 Uranus is in conjunction with

the Sun, 10 A.M. EDT

19 The Moon passes 1.1° north of

Aldebaran, 1 A.M. EDT

20 The Moon is at perigee

(229,108 miles from Earth),

10:41 A.M. EDT

22 First Quarter Moon

occurs at 5:46 P.M. EDT

Pluto is stationary, 10 P.M. EDT

24 The Moon passes 1.2° north of

Regulus, 4 P.M. EDT

29 Mercury is at greatest western

elongation (27°), 2 P.M. EDT

Full Moon occurs at

8:58 P.M. EDT

30 The Moon passes 4° north of

Jupiter, 1 P.M. EDT

SPECIAL OBSERVING DATE

22 The Lyrid meteor shower

peaks before dawn under

a Moon-free sky.

ILLUSTRATIONS BY

ASTRONOMY

: ROEN KELLY

BEGINNERS: WATCH A VIDEO ABOUT HOW TO READ A STAR CHART AT http://www.Astronomy.com/starchart.