Astronomy – September 2019

COM

BOÖ

SER

VIR

LIB

LUP

SCO

ARA

TEL

SGR

SCT

AQL SER OPH

HER

LY R

CYG

VUL

SGE

ANT

CEN

CRV CRT HYA

SEX

LEO

CVn

UMa

CrA

LMi

CrB

Path^ o

f^ the

Sun^

(ecl

iptic

)^

Sun

Early evening

Pluto

Saturn

Jupiter

Ven

us

Me

rcu

ry

Ceres

30 29 28 27

9 8 7 6 5 4 3 2 1

Callisto

Europa

Io

Ganymede

Jupiter

2

3

4

1 5 6 7 8 9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

10"

N

S

WE

Jupiter

Uranus

Saturn

Neptune Pluto

Io

Ganymede

Europa

Callisto

This map unfolds the entire night sky from sunset (at right) until sunrise (at left). Arrows

and colored dots show motions and locations of solar system objects during the month.

JUPITER’S

MOONS

Dots display

positions of

Galilean satellites

at 11 P.M. EDT on

the date shown.

South is at the

top to match the

view through a

telescope.

SEPTEMBER 2019

Sept. 15

1.8

3.5"

100%

2.665

1.664

11h15.4m

5°55'

Sept. 15

9.0

0.5"

97%

2.889

2.847

16h28.7m

–23°27'

Sept. 15

–2.1

37.4"

99%

5.268

5.266

16h59.3m

–22°24'

Sept. 15

0.4

17.3"

100%

9.623

10.044

18h59.2m

–22°32'

Sept. 15

5.7

3.7"

100%

19.099

19.832

2h15.0m

13°00'

Sept. 15

7. 8

2.4"

100%

28.932

29.935

23h13.5m

–6°09'

Sept. 15

14.3

0.1"

100%

33.383

33.880

19h28.8m

–22°23'

MARS CERES JUPITER SATURN URANUS NEPTUNE PLUTO