The Solar System

APPENDIX B 613

MajorCanis

Lepus

Eridanus

Cetus

Taurus Pleiades

Aries

Aquarius

Pegasus

Andromeda

Triangulum

Pisces

Equator

4 h

7 h

8 h

9 h

6 h 3 h 2 h^1 h

0 h

23 h

Hydra

CanisMinor

Leo

Leo Minor

MajorUrsa

UrsaMinor

Draco

Cepheus

Cassiopeia

Cygnus

d

Deneb

Cygnus

Auriga

Gemini

Orion

d

Eclipt

Aic

ug

June

May March

Equinox

Cancer

Milky WayMilky Way

Perseus

Procyon

Betelgeuse

Algol

Double

Cluster

Betelgeuse

Beehive

Regulus PolluxCastor

Sirius Rigel

Aldebaran

Algol

M42 Mira

Big

Dipper

Polaris

LittleDipper Deneb

DoubleCluster

M31

Capella

5 h

Southern Horizon

Northern Horizon

Eastern Horizon

Western Horizon

JANUARY
Early in Month
Midmonth
End of Month

Months along the ecliptic show the
location of the sun during the year.

Numbers along the celestial equator
show right ascension.

Northern
Hemisphere Sky

9 P.M.

8 P.M.

7 P.M.

Equa

Equator tor

6 h

9 h

(^10) h
(^11) h
8 h 5 h 4 h^3 h
2 h
1 h
7 h
Sept
Aug July
June May
April
Leo Minor
MajorUrsa Ursa
Minor
Draco
Cepheus
Cassiopeia
d
Algol
ClusterDouble
Betelgeuse
d
CancerBeehive
Polaris
LittleDipper
BigDipper
Leo
Gemini
PolluxCastor
Pleiades
Auriga
Capella
Taurus
Aldebaran
Aries
Andromeda Pegasus
Triangulum
Perseus
Algol
ClusterDouble M31
Pisces
Mira Cetus
Eridanus
Lepus
Orion
Betelgeuse
Rigel
M42
CanisMinor
Procyon
Regulus
Hydra
MajorCanis
Sirius
Ecliptic Ecliptic
Milky WayMilky Way
Southern Horizon
Northern Horizon
Eastern Horizon
Western Horizon
FEBRUARY
Early in Month
Midmonth
End of Month
Months along the ecliptic show the
location of the sun during the year.
Numbers along the celestial equator
show right ascension.
Northern
Hemisphere Sky
9 P.M.
8 P.M.
7 P.M.