Sky and Telescope - September 2018 - 42

SEPTEMBER 2018 OBSERVING
Lunar Almanac
Northern Hemisphere Sky Chart

North
LY N X
P

IS

_

ER

Fa
SE

a

le
ub er
Do lust
C

AS

SI

O

PE

b

+80°

IA

a

PH

EU

_

`

S

2
M5

`
¡

j

b

b

c

_
+

+60°

+

b

e

September 26

`

* Xenophanes Crater

S

September 16

_

AQU
ILA
d

M

¡

* Hamilton Crater

`

US

September 13

NU

LE

* Peirescius Crater

Albireo

HI

September 1

S E P TE M B E R 2 018 * SK Y & TELESCOPE

UU

42

* Galvani Crater

r

LP
EQ

FAVORABLE LIBRATIONS

a

`

Diameter 29′ 31″

Altair

A

c

S

404,876 km

UT

e

0
1
2
3
4

M3

0

22h

n
ci
Fa

September 20,

IU

Diameter 33′ 04″

Apogee

R

361,351 km

UL

TA

M2

A

September 8, 01h UT

01h

DE

U

Perigee

EC

GIT

h

b

-1

DISTANCES

a

LP

SA

a

M15

02:52 UT

¡

23:15 UT

_

September 25

e

September 16

VU

7

Q

FULL MOON

c

FIRST QUARTER

A

18:01 UT

er
at r
Ja

02:37 UT

Zenith

M2

W

September 9

_

September 3

Ci rc let

NEW MOON

n
oo 4
M pt 2
Se

LAST QUARTER

a

Facing East

30

CE

29

a

4

28

_

M3

27

¡

l
S go
U Al

26

Polaris

n
ci

25

C

`

24

b

23

M29

22

a

21

_

20

Deneb

19

C Y G N U S

18

¡

17

61

16

M39

15

CE

14

LA

13

RT
A

12

d

11

+

10

`

9

PEGASUS

8

ED
A

7

Great Square
of Pegasus

6

_

5

h

4

1

3

OM

PIS
CE
S

1
2

AN

S AT

FRI

THU

DR

WED

M3
1

TUE

MON

DAL

`

3

MOON PHASES
SUN

PA R

a

TR
M3

IE
S

UL
UM

AR

N ASA / LRO

IA
NG

16
13

ELO

g

NE

Yellow dots indicate
which part of the
Moon's limb is tipped
the most toward Earth
by libration.

CAM

26
September 1

4h

D
G
Va oub ala
Op arbialb lests yxy
e
a
D
n
G iff ecn lests trar
Pl lob use luclsut atrar
se
an ul
en
et ar beub trer
clu lual
ar
a
y
ne tsetre
bu r
la

Planet location
shown for mid-month

g

CA

PR

_

Mo
Sep on
t 20

IC

OR

NU

SCU

`

E C
L I P
T I C
Ma

-20°

rs

S

o
c

SE

USING THE NORTHERN HEMISPHERE MAP

Go out within an hour of a time listed to the
right. Turn the map around so the yellow
label for the direction you're facing is at the
bottom. That's the horizon. The center of the
map is overhead. Ignore the parts of the map
above horizons you're not facing.

SA
CORONA
AUSTRALIS

19

Facing



Table of Contents for the Digital Edition of Sky and Telescope - September 2018

Contents
Sky and Telescope - September 2018 - Cover1
Sky and Telescope - September 2018 - Cover2
Sky and Telescope - September 2018 - 1
Sky and Telescope - September 2018 - Contents
Sky and Telescope - September 2018 - 3
Sky and Telescope - September 2018 - 4
Sky and Telescope - September 2018 - 5
Sky and Telescope - September 2018 - 6
Sky and Telescope - September 2018 - 7
Sky and Telescope - September 2018 - 8
Sky and Telescope - September 2018 - 9
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Sky and Telescope - September 2018 - 30
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Sky and Telescope - September 2018 - 84
Sky and Telescope - September 2018 - Cover3
Sky and Telescope - September 2018 - Cover4
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