Skywatch - 2021 - 37

Facing North
S

e
ubl
Do ster
Clu

W

n

g

N

SEU

Fa
C

AS

n

SI

O

E

Fa

ci

ci

g
N

Map instructions can
be found on page 9.

PER

*Daylight-saving time

J U LY | 2021
SK YC H A RT

5h

WHEN TO
USE THIS MAP
Early June - 1 am*
Late June - Midnight*
Early July - 11 pm*
Late July - Nightfall

PE

IA

N

α

A

M
31

D
α

δ
D Bi
ip g
p

γ
M3

O

β

R

β

N
U

Moon
July 20

M2
M2

0

β
δ

σ

B
LI

R

A

α

E

L

I P

S
VU

π

M4

n

g

Antares
α

ν

C

SW

S

7

R

O P H I U C H U S

O

A

IC
R
P α

M10

n
oo 6
M ly 1
u
J
I C
T

Sp

IL

A

ci

GIT

G

δ

U

5

M

O R
A T
E Q U

M12

M1

M2
2

Fa
SA

IR
V

)

O

Arcturus

α

α

BOÖTES

S

Q

E A
C
(
α

S
T

TA

M6

RIU

Sε

M7

λ

Fa

ε

PIUS
υ S C O R
μ

ci

S
PU
LU

n

STAR
MAGNITUDES
-1

0

1

2

3

4

Facing South
SYMBOLS

7/9:
Voyager
2 fl ies by
Jupiter,
1979

Galaxy

Double star

7/16: First
fragments of
Comet ShoemakerLevy 9 (D/1993
F2) crash into
Jupiter, 1994

Variable star

7/20:
Viking 1
lands on
Mars,
1976

Open cluster

7/20:
Apollo 11
makes fi rst
crewed lunar
landing,
1969

Diffuse nebula

Globular cluster

7/26: Thomas
Harriot draws a
telescopic map
of the Moon,
becoming the fi rst
to do so, 1609

Planetary nebula

7/29: U.S. Congress
passes the National
Aeronautics and
Space Act, formally
creating NASA,
1958

SK Y WATCH 2021

37

Facing West

γ
P

N
U

UM

M8

SE

M
Jul oon
y1
3

M5

η
CO
BO RON
A
RE
ALI
S

U
μ

DRACO
β

E

C

Little
Dipper
LYRA

o

A

C

(C RP
A
E
N
U
S
D
M1
A
1
)

3

σ

O
LE

S
NE CI
C A AT I
N
VE

E

β

ζ
M
& iza
Al r
co
ε
r

1

H

URSA
MINOR

er

ε

Vega α

M57

Albire

α

R

E

M2
5

M
Jul oon
y2
3

g

β

R

NUS

ir

ta

Al

US

α

P

ica

P

δ
CYG

HIN

β
ULA
χ
PEC
VUL
A
Nort
TT
her
GI
Cros n
SA
s M27

LP

n

COMA
BERENICES

β

E

Polaris

Deneb α

M39

DE

tur

α

C

α

α

LA
C
ER
TA

M15

Sa

V
G irgo
Cl alax
us y
te
r

2

M8

A

β

S

UT

1

D
ε

US
ARI
AQU

α

SC

M8

E

PE
GA
SU
S

M13

HERCULES

S

U
M R
A S
J
A
O
R

R
O
M

Great S
quare
of Peg
asus

Facing East

M92

Zenith



Skywatch - 2021

Table of Contents for the Digital Edition of Skywatch - 2021

Contents
Skywatch - 2021 - Cover1
Skywatch - 2021 - Cover2
Skywatch - 2021 - 1
Skywatch - 2021 - Contents
Skywatch - 2021 - 3
Skywatch - 2021 - 4
Skywatch - 2021 - 5
Skywatch - 2021 - 6
Skywatch - 2021 - 7
Skywatch - 2021 - 8
Skywatch - 2021 - 9
Skywatch - 2021 - 10
Skywatch - 2021 - 11
Skywatch - 2021 - 12
Skywatch - 2021 - 13
Skywatch - 2021 - 14
Skywatch - 2021 - 15
Skywatch - 2021 - 16
Skywatch - 2021 - 17
Skywatch - 2021 - 18
Skywatch - 2021 - 19
Skywatch - 2021 - 20
Skywatch - 2021 - 21
Skywatch - 2021 - 22
Skywatch - 2021 - 23
Skywatch - 2021 - 24
Skywatch - 2021 - 25
Skywatch - 2021 - 26
Skywatch - 2021 - 27
Skywatch - 2021 - 28
Skywatch - 2021 - 29
Skywatch - 2021 - 30
Skywatch - 2021 - 31
Skywatch - 2021 - 32
Skywatch - 2021 - 33
Skywatch - 2021 - 34
Skywatch - 2021 - 35
Skywatch - 2021 - 36
Skywatch - 2021 - 37
Skywatch - 2021 - 38
Skywatch - 2021 - 39
Skywatch - 2021 - 40
Skywatch - 2021 - 41
Skywatch - 2021 - 42
Skywatch - 2021 - 43
Skywatch - 2021 - 44
Skywatch - 2021 - 45
Skywatch - 2021 - 46
Skywatch - 2021 - 47
Skywatch - 2021 - 48
Skywatch - 2021 - 49
Skywatch - 2021 - 50
Skywatch - 2021 - 51
Skywatch - 2021 - 52
Skywatch - 2021 - 53
Skywatch - 2021 - 54
Skywatch - 2021 - 55
Skywatch - 2021 - 56
Skywatch - 2021 - 57
Skywatch - 2021 - 58
Skywatch - 2021 - 59
Skywatch - 2021 - 60
Skywatch - 2021 - 61
Skywatch - 2021 - 62
Skywatch - 2021 - 63
Skywatch - 2021 - 64
Skywatch - 2021 - 65
Skywatch - 2021 - 66
Skywatch - 2021 - 67
Skywatch - 2021 - 68
Skywatch - 2021 - 69
Skywatch - 2021 - 70
Skywatch - 2021 - 71
Skywatch - 2021 - 72
Skywatch - 2021 - 73
Skywatch - 2021 - 74
Skywatch - 2021 - 75
Skywatch - 2021 - 76
Skywatch - 2021 - 77
Skywatch - 2021 - 78
Skywatch - 2021 - 79
Skywatch - 2021 - 80
Skywatch - 2021 - Cover3
Skywatch - 2021 - Cover4
https://www.nxtbook.com/nxtbooks/aas/st_202504
https://www.nxtbook.com/nxtbooks/aas/st_202501_qr
https://www.nxtbook.com/nxtbooks/aas/st_202503
https://www.nxtbook.com/nxtbooks/aas/st_202502
https://www.nxtbook.com/nxtbooks/aas/st_202501
https://www.nxtbook.com/nxtbooks/aas/st_202412
https://www.nxtbook.com/nxtbooks/aas/st_202411
https://www.nxtbook.com/nxtbooks/aas/st_202410
https://www.nxtbook.com/nxtbooks/aas/st_202409
https://www.nxtbook.com/nxtbooks/aas/st_202408
https://www.nxtbook.com/nxtbooks/aas/st_202407
https://www.nxtbook.com/nxtbooks/aas/st_202406
https://www.nxtbook.com/nxtbooks/aas/st_202405
https://www.nxtbook.com/nxtbooks/aas/st_202404_qr
https://www.nxtbook.com/nxtbooks/aas/st_202404
https://www.nxtbook.com/nxtbooks/aas/st_202403
https://www.nxtbook.com/nxtbooks/aas/st_202402
https://www.nxtbook.com/nxtbooks/aas/st_202401_aus
https://www.nxtbook.com/nxtbooks/aas/st_202401
https://www.nxtbook.com/nxtbooks/aas/st_202312_aus
https://www.nxtbook.com/nxtbooks/aas/st_202312
https://www.nxtbook.com/nxtbooks/aas/st_202311
https://www.nxtbook.com/nxtbooks/aas/st_202310
https://www.nxtbook.com/nxtbooks/aas/st_202309
https://www.nxtbook.com/nxtbooks/aas/st_202308
https://www.nxtbook.com/nxtbooks/aas/st_202307
https://www.nxtbook.com/nxtbooks/aas/st_202306
https://www.nxtbook.com/nxtbooks/aas/st_202305
https://www.nxtbook.com/nxtbooks/aas/st_202304
https://www.nxtbook.com/nxtbooks/aas/st_202304_qr
https://www.nxtbook.com/nxtbooks/aas/st_202303
https://www.nxtbook.com/nxtbooks/aas/st_202302
https://www.nxtbook.com/nxtbooks/aas/st_202301
https://www.nxtbook.com/nxtbooks/aas/st_202212
https://www.nxtbook.com/nxtbooks/aas/st_202211
https://www.nxtbook.com/nxtbooks/aas/st_202210
https://www.nxtbook.com/nxtbooks/aas/st_202209
https://www.nxtbook.com/nxtbooks/aas/st_202208
https://www.nxtbook.com/nxtbooks/aas/st_202207
https://www.nxtbook.com/nxtbooks/aas/st_202206
https://www.nxtbook.com/nxtbooks/aas/st_202205
https://www.nxtbook.com/nxtbooks/aas/st_202204
https://www.nxtbook.com/nxtbooks/aas/st_202203
https://www.nxtbook.com/nxtbooks/aas/st_202202
https://www.nxtbook.com/nxtbooks/aas/st_202201
https://www.nxtbook.com/nxtbooks/aas/st_202112
https://www.nxtbook.com/nxtbooks/aas/st_202111
https://www.nxtbook.com/nxtbooks/aas/st_202110
https://www.nxtbook.com/nxtbooks/aas/st_202109
https://www.nxtbook.com/nxtbooks/aas/st_202108
https://www.nxtbook.com/nxtbooks/aas/st_202107
https://www.nxtbook.com/nxtbooks/aas/st_202106
https://www.nxtbook.com/nxtbooks/aas/st_202105
https://www.nxtbook.com/nxtbooks/aas/st_202104
https://www.nxtbook.com/nxtbooks/aas/st_202103
https://www.nxtbook.com/nxtbooks/aas/st_202102
https://www.nxtbook.com/nxtbooks/aas/st_202101
https://www.nxtbook.com/nxtbooks/aas/skywatch_2021
https://www.nxtbook.com/nxtbooks/aas/st_202012
https://www.nxtbook.com/nxtbooks/aas/st_202011
https://www.nxtbook.com/nxtbooks/aas/st_202010
https://www.nxtbook.com/nxtbooks/aas/st_202009
https://www.nxtbook.com/nxtbooks/aas/st_202008
https://www.nxtbook.com/nxtbooks/aas/st_202007
https://www.nxtbook.com/nxtbooks/aas/st_202006
https://www.nxtbook.com/nxtbooks/aas/st_202005
https://www.nxtbook.com/nxtbooks/aas/st_202004
https://www.nxtbook.com/nxtbooks/aas/st_202003
https://www.nxtbook.com/nxtbooks/aas/st_202002
https://www.nxtbook.com/nxtbooks/aas/st_202001
https://www.nxtbook.com/nxtbooks/aas/st_201912
https://www.nxtbook.com/nxtbooks/aas/st_201911
https://www.nxtbook.com/nxtbooks/aas/st_201910
https://www.nxtbook.com/nxtbooks/aas/st_201909
https://www.nxtbook.com/nxtbooks/aas/st_201908
https://www.nxtbook.com/nxtbooks/aas/st_201907
https://www.nxtbook.com/nxtbooks/aas/st_201906
https://www.nxtbook.com/nxtbooks/aas/st_201905
https://www.nxtbook.com/nxtbooks/aas/st_201904
https://www.nxtbook.com/nxtbooks/aas/st_201903
https://www.nxtbook.com/nxtbooks/aas/st_201902
https://www.nxtbook.com/nxtbooks/aas/st_201901
https://www.nxtbook.com/nxtbooks/aas/st_201812
https://www.nxtbook.com/nxtbooks/aas/st_201811
https://www.nxtbook.com/nxtbooks/aas/st_201810
https://www.nxtbook.com/nxtbooks/aas/st_201809
https://www.nxtbook.com/nxtbooks/aas/st_201808
https://www.nxtbook.com/nxtbooks/aas/st_201807
https://www.nxtbook.com/nxtbooks/aas/st_201806
https://www.nxtbook.com/nxtbooks/aas/st_201805
https://www.nxtbook.com/nxtbooks/aas/st_201804
https://www.nxtbook.com/nxtbooks/aas/st_201803
https://www.nxtbook.com/nxtbooks/aas/st_201802
https://www.nxtbook.com/nxtbooks/aas/st_201801
https://www.nxtbook.com/nxtbooks/aas/st_201712
https://www.nxtbook.com/nxtbooks/aas/st_201711
https://www.nxtbook.com/nxtbooks/aas/st_201710
https://www.nxtbook.com/nxtbooks/aas/st_201709
https://www.nxtbook.com/nxtbooks/aas/st_201708
https://www.nxtbook.com/nxtbooks/aas/st_201707
https://www.nxtbook.com/nxtbooks/aas/st_201706
https://www.nxtbook.com/nxtbooks/aas/st_201705
https://www.nxtbook.com/nxtbooks/aas/st_201704
https://www.nxtbook.com/nxtbooks/aas/st_201703
https://www.nxtbook.com/nxtbooks/aas/st_201702
https://www.nxtbook.com/nxtbooks/aas/st_201701
https://www.nxtbook.com/nxtbooks/aas/st_201612
https://www.nxtbook.com/nxtbooks/aas/st_201611
https://www.nxtbook.com/nxtbooks/aas/st_201610
https://www.nxtbook.com/nxtbooks/aas/st_201609
https://www.nxtbook.com/nxtbooks/aas/st_201608
https://www.nxtbook.com/nxtbooks/aas/st_201607
https://www.nxtbook.com/nxtbooks/aas/st_201606
https://www.nxtbook.com/nxtbooks/aas/st_201605
https://www.nxtbook.com/nxtbooks/aas/st_201604
https://www.nxtbook.com/nxtbooks/aas/st_201603
https://www.nxtbook.com/nxtbooks/aas/st_201602
https://www.nxtbook.com/nxtbooks/aas/st_201601
https://www.nxtbook.com/nxtbooks/aas/st_201512
https://www.nxtbook.com/nxtbooks/aas/st_201511
https://www.nxtbook.com/nxtbooks/aas/st_201510
https://www.nxtbook.com/nxtbooks/aas/st_201509
https://www.nxtbook.com/nxtbooks/aas/st_201508
https://www.nxtbook.com/nxtbooks/aas/st_201507
https://www.nxtbook.com/nxtbooks/aas/st_201506
https://www.nxtbook.com/nxtbooks/aas/st_201505
https://www.nxtbook.com/nxtbooks/aas/st_201504
https://www.nxtbook.com/nxtbooks/aas/st_201503
https://www.nxtbook.com/nxtbooks/aas/st_201502
https://www.nxtbook.com/nxtbooks/aas/st_201501
https://www.nxtbook.com/nxtbooks/aas/st_201412
https://www.nxtbook.com/nxtbooks/aas/st_201411
https://www.nxtbook.com/nxtbooks/aas/st_201410
https://www.nxtbook.com/nxtbooks/aas/st_201409
https://www.nxtbook.com/nxtbooks/aas/st_201408
https://www.nxtbook.com/nxtbooks/aas/st_201407
https://www.nxtbook.com/nxtbooks/aas/st_201406
https://www.nxtbook.com/nxtbooks/aas/st_mars
https://www.nxtbook.com/nxtbooks/aas/st_201405
https://www.nxtbook.com/nxtbooks/aas/st_201404
https://www.nxtbook.com/nxtbooks/aas/st_201403
https://www.nxtbook.com/nxtbooks/aas/st_201402
https://www.nxtbook.com/nxtbooks/aas/st_201401
https://www.nxtbook.com/nxtbooks/aas/st_201312
https://www.nxtbook.com/nxtbooks/aas/st_201311
https://www.nxtbook.com/nxtbooks/aas/st_201310
https://www.nxtbook.com/nxtbooks/aas/st_201309
https://www.nxtbook.com/nxtbooks/aas/st_201308
https://www.nxtbook.com/nxtbooks/aas/st_201307
https://www.nxtbook.com/nxtbooks/aas/st_201306
https://www.nxtbook.com/nxtbooks/aas/st_201305
https://www.nxtbook.com/nxtbooks/aas/st_201304
https://www.nxtbook.com/nxtbooks/aas/st_201303
https://www.nxtbook.com/nxtbooks/aas/st_201302
https://www.nxtbook.com/nxtbooks/aas/st_201301
https://www.nxtbook.com/nxtbooks/aas/st_201212
https://www.nxtbook.com/nxtbooks/aas/st_201211
https://www.nxtbook.com/nxtbooks/aas/st_201210
https://www.nxtbook.com/nxtbooks/aas/st_201209
https://www.nxtbook.com/nxtbooks/aas/st_201208
https://www.nxtbook.com/nxtbooks/aas/st_201207
https://www.nxtbook.com/nxtbooks/aas/st_201206
https://www.nxtbook.com/nxtbooks/aas/st_201205
https://www.nxtbook.com/nxtbooks/aas/st_201204
https://www.nxtbook.com/nxtbooks/aas/st_201203
https://www.nxtbook.com/nxtbooks/aas/st_201202
https://www.nxtbook.com/nxtbooks/aas/st_201201
https://www.nxtbook.com/nxtbooks/aas/st_201112
https://www.nxtbook.com/nxtbooks/aas/st_201111
https://www.nxtbook.com/nxtbooks/aas/st_201110
https://www.nxtbook.com/nxtbooks/aas/st_201109
https://www.nxtbook.com/nxtbooks/aas/st_201108
https://www.nxtbook.com/nxtbooks/aas/st_201107
https://www.nxtbook.com/nxtbooks/aas/st_201106
https://www.nxtbook.com/nxtbooks/aas/st_201105
https://www.nxtbook.com/nxtbooks/aas/st_201104
https://www.nxtbook.com/nxtbooks/aas/st_201103
https://www.nxtbook.com/nxtbooks/aas/st_201102
https://www.nxtbook.com/nxtbooks/aas/st_201101
https://www.nxtbook.com/nxtbooks/aas/st_201012
https://www.nxtbook.com/nxtbooks/aas/st_201011
https://www.nxtbook.com/nxtbooks/aas/st_201010
https://www.nxtbook.com/nxtbooks/aas/st_201009
https://www.nxtbook.com/nxtbooks/aas/st_201008
https://www.nxtbook.com/nxtbooks/aas/st_201007
https://www.nxtbook.com/nxtbooks/aas/st_201006
https://www.nxtbook.com/nxtbooks/aas/st_201005
https://www.nxtbook.com/nxtbooks/aas/st_201004
https://www.nxtbook.com/nxtbooks/aas/st_201003
https://www.nxtbook.com/nxtbooks/aas/st_201002
https://www.nxtbook.com/nxtbooks/aas/st_201001
https://www.nxtbookmedia.com