Sky & Telescope - January 2021 - SA7

2021

335

15

ts
Se

16
Rise

396

N

ep

er

R

tu

is

18

es

U

ne

an
Tr

A

J U LY

D

en

si

Sa

ry

Rise

ts

A

427

GU

ST

Set

B

P
Rise

an
Tr

Se

ts

A

ry

Ju

Set

p

r
ite

si

ts

e
et

cu

e
lg

us

e

R

is

es

9
Perseids

16

er

M

N

P

7

e

pt

e
un

t
Sa

ur

ts

n

Southern
Taurids

ts
2

U
Rise

3

End of evenin
g twiligh

t

Set

U

R i se

ra

n

us

a
Tr

i
ns

JANUA

RY

Sunrise

UAR

Y
6

23

Set

a
Tr

FE

30

1

i
ns

H

23

Se

A

Pl

ei

ad

pp

es

er

C

a
Tr

Northern
Taurids

ts

ul

m

i
ns

in

a

n
tio

la

s
ri

ts la
Se ebu
N

ep

Computed by Roger W. Sinnott

20

27

4

t

N

13

of

M

ne rion
tu

4

O

an
Tr

S

i
ir

42

a
Tr

i
ns

ts

11

18

Orionids

si

P

25
M

ts

us

an
Tr
lu
ol

Sky & Telescope
One Alewife Center
Suite 300B
Cambridge, MA
02140
USA

si

ts

x

1
er

cu

8

ry

15
Leonids

R

is

es

22

29

s
et
rS

6

U

ra

R

eg

ul

us

ts

Ursids

A

nt

ar

es

es
is
R A

13

8
Greatest illuminated extent

9
Opposition

10

11
New
Moon

Midnight
First
Quarter

Full
Moon

1

2
Last
Quarter

A Apogee

3
P Perigee

4

5
Waxing
(moonset)

6

7 a.m.
Waning
(moonrise)

20
27

DECEM

t
Greatest
elongation

R i se

pi

Se

7

i

s
nu

si

Ju

ry
S

ir

R

te

cu
Sunset

s

s
iu

s
se

an
Tr

6

Sunrise

Se

Geminids

ts

BER

P
5

Mars Ris
es

Sun
fast
Set

Conjunction
(appulse)

es

22

P

17

6

is

P

21

10

5 p.m.

R

Delta
Aquariids

P

A

t

eb

20

AU

458

R

BE

EM

ra

es

P

s
nu

19

Se t

PT

SE
488

R

R

is

n
ur

N

Rise

p

Tr

A

its

BER

Ju

it

es

s
an

JUNE

366

JUNE

R

Se t

is

17

J U LY

y

u

ur

rc

M

c
er

M
OVE

M AY

Se t

BE
TO

Eta
Aquariids

ht

OC

R

twilig

519

rn

es

M AY

S

u
at

is

g
ornin
of m

BER

M e rc u r y

Set

Ma

AP

14

Rise

P

Jan 2

Earth is
91,399,454
22
miles from the
Sun (perihelion)
29
at 8:51 a.m. EST
Jan 4 Latest sunrise of
5
the year
12
Jan 7 Latest onset of
morning twilight
19
Mar 5 Mercury is 0.4° left
of Jupiter, but they are
26
very low (use binoculars)
P
Mar 6 Mercury is 27° west of
3
the Sun
Spring
begins at the equinox,
Mar
20
10
5:37 a.m. EDT
A
17
May 26 A barely total lunar eclipse
for the Pacific Ocean and Rim,
24
with maximum at 11:19 UT
P
Jun 10 Annular solar eclipse in a path
31
from Ontario, Canada, across the
Arctic into northeastern Russia;
7
partial for eastern North America
Jun 14 Earliest sunrise at latitude
14
40° north
Earliest onset of morning twilight
Jun
17
21
Mercury is 22° west of the Sun
Jul 4
28
Oct 25 Mercury is 18° west of the Sun
Nov 10 Mercury is 1.0° above left of
5
Mars, but they are very low
(use binoculars)
12
Nov 19 Partial lunar eclipse for North
America and the Pacific
19
Ocean, becoming very nearly
total near 1 a.m. PST
26
Dec 21 Winter begins at the
solstice, 10:59 a.m. EST
2

Lyrids

rs

Se t

24

24

MORNING SKY

15

t
Star

NOVEM

er

8

s

305

RIL

A

s Sets

549

w

u

in

1

n

er

BER

Lo

C

lm

io
at

ol

s

13

M

DECEM

g twil ight

Sun
slow

Po

5

26

of m
or nin

P
of

R i se A

28

19

22
i
ar

Rise

26

14

12

15

12

P

31

P

es

RC

s
lu A

3

21

ar

is

8

MA

R

u
eg

u
Ve n

19

nt

es

R

11

its

25

Star t

A

s
an

18

R
OBE
OCT

ght
twili

MA

Tr

Se t

g

RCH

enin

Jan 11 Jupiter has
Mercury 1.4°
21
to lower left,
with Saturn 2.3°
28
to lower right
(use binoculars)
4
Jan 21 Uranus is 1.6°
south of Mars
11
Jan 23 Mercury is 19° east
18
of the Sun
May 16 Mercury is 22° east
25
of the Sun
May 28 Mercury is 0.4° to the
2
left of Venus
Jun 20 Summer begins at the
9
solstice, 11:32 p.m. EDT;
A
h
m
longest day, 15 01 at
16
latitude 40° north
23
Jun 24 Latest end of evening twilightP
Jun 27 Latest sunset
30
Jul 5 Earth is 94,510,886 miles
from the Sun (aphelion) at
6
6:27 p.m. EDT
Jul 12 Mars is 0.5° lower left of Venus
13
Jul 21 Venus and Regulus are 1.1° apart
20
Aug 1 Saturn comes to opposition
tonight
27
Aug 19 Jupiter is at opposition tonight
Sep 5 Venus and Spica are 1.6° apart
4
Sep 13 Mercury is 27° east of the Sun;
Neptune is at opposition tonight
11
Sep 22 Fall begins at the equinox, 3:21
18
p.m. EDT
Oct 16 Venus and Antares are about
25
1.4° apart
Oct 29 Venus reaches greatest
1
elongation, 47° east of
the Sun
8
Nov 4 Uranus is at opposition
tonight
15
Dec 4 Earliest end of evening
22
twilight; total solar
eclipse in a path
29
across Antarctica
Dec 7 Earliest sunset
5
Dec 21 Shortest day, 9h
20m at latitude
12
40° north

A
10

Rise

of e v

14

ts

P

End

7

Se t

11

1

ER

n

P

9

EMB

a
Tr

ts
si

ll

n

Se

Po

ux

4

APR
IL

us

a
Tr

Rise

42

ts
si

Rises

Si

ri

M

ns

7 a.m.

UST

a
Tr

s

N

28
274

F

n

la

6

Quadrantids

Me

O

21

o
ri

u
eb

5

A

its

ra

14

EVENING SKY

8

un

yS

4

Equation
of time

es

ep
t

r
rc u

3

P

e

pp e

2

U

Me

e

d
ia

1

7

nu

Pl

UA
EBR

7

U

Midnight

Rise

Se
ts

Se

C

in

er

rs
Ma

2 46

31

RY

us

m

11

T Set

N

ri

ul

i
at

ts

Si

is

es

10

T
SEP

s
ris
nu ts
la
o
ra si
P
it
U an
of
ns
Tr
ra
on

Tr

JAN

S
Ju Set atu
pi s rn
te
r

UAR

Y

+
,000
,459
215
ay 2

nd
Julia

24

R

9

NORTH

MORNING

A SUPPLEMENT TO SK Y & TELESCOPE

8

4 0°

ises
sR

17

7

NE A R

nu
Ve

10

et
Suns

3

6
ts

5 p.m.

L AT I TUDES

AUG

EVENING

FOR

BR

Skygazer's
Almanac 40°N



Sky & Telescope - January 2021

Table of Contents for the Digital Edition of Sky & Telescope - January 2021

Contents
Sky & Telescope - January 2021 - Cover1
Sky & Telescope - January 2021 - Cover2
Sky & Telescope - January 2021 - 1
Sky & Telescope - January 2021 - Contents
Sky & Telescope - January 2021 - 3
Sky & Telescope - January 2021 - 4
Sky & Telescope - January 2021 - 5
Sky & Telescope - January 2021 - 6
Sky & Telescope - January 2021 - 7
Sky & Telescope - January 2021 - 8
Sky & Telescope - January 2021 - 9
Sky & Telescope - January 2021 - 10
Sky & Telescope - January 2021 - 11
Sky & Telescope - January 2021 - 12
Sky & Telescope - January 2021 - 13
Sky & Telescope - January 2021 - 14
Sky & Telescope - January 2021 - 15
Sky & Telescope - January 2021 - 16
Sky & Telescope - January 2021 - 17
Sky & Telescope - January 2021 - 18
Sky & Telescope - January 2021 - 19
Sky & Telescope - January 2021 - 20
Sky & Telescope - January 2021 - 21
Sky & Telescope - January 2021 - 22
Sky & Telescope - January 2021 - 23
Sky & Telescope - January 2021 - 24
Sky & Telescope - January 2021 - 25
Sky & Telescope - January 2021 - 26
Sky & Telescope - January 2021 - 27
Sky & Telescope - January 2021 - 28
Sky & Telescope - January 2021 - 29
Sky & Telescope - January 2021 - 30
Sky & Telescope - January 2021 - 31
Sky & Telescope - January 2021 - 32
Sky & Telescope - January 2021 - 33
Sky & Telescope - January 2021 - 34
Sky & Telescope - January 2021 - 35
Sky & Telescope - January 2021 - 36
Sky & Telescope - January 2021 - 37
Sky & Telescope - January 2021 - 38
Sky & Telescope - January 2021 - 39
Sky & Telescope - January 2021 - 40
Sky & Telescope - January 2021 - 41
Sky & Telescope - January 2021 - 42
Sky & Telescope - January 2021 - 43
Sky & Telescope - January 2021 - 44
Sky & Telescope - January 2021 - 45
Sky & Telescope - January 2021 - 46
Sky & Telescope - January 2021 - 47
Sky & Telescope - January 2021 - 48
Sky & Telescope - January 2021 - 49
Sky & Telescope - January 2021 - 50
Sky & Telescope - January 2021 - 51
Sky & Telescope - January 2021 - 52
Sky & Telescope - January 2021 - 53
Sky & Telescope - January 2021 - 54
Sky & Telescope - January 2021 - 55
Sky & Telescope - January 2021 - 56
Sky & Telescope - January 2021 - 57
Sky & Telescope - January 2021 - 58
Sky & Telescope - January 2021 - 59
Sky & Telescope - January 2021 - 60
Sky & Telescope - January 2021 - 61
Sky & Telescope - January 2021 - 62
Sky & Telescope - January 2021 - 63
Sky & Telescope - January 2021 - 64
Sky & Telescope - January 2021 - 65
Sky & Telescope - January 2021 - 66
Sky & Telescope - January 2021 - 67
Sky & Telescope - January 2021 - 68
Sky & Telescope - January 2021 - 69
Sky & Telescope - January 2021 - 70
Sky & Telescope - January 2021 - 71
Sky & Telescope - January 2021 - 72
Sky & Telescope - January 2021 - 73
Sky & Telescope - January 2021 - 74
Sky & Telescope - January 2021 - 75
Sky & Telescope - January 2021 - 76
Sky & Telescope - January 2021 - 77
Sky & Telescope - January 2021 - 78
Sky & Telescope - January 2021 - 79
Sky & Telescope - January 2021 - 80
Sky & Telescope - January 2021 - 81
Sky & Telescope - January 2021 - 82
Sky & Telescope - January 2021 - 83
Sky & Telescope - January 2021 - 84
Sky & Telescope - January 2021 - Cover3
Sky & Telescope - January 2021 - Cover4
Sky & Telescope - January 2021 - SA1
Sky & Telescope - January 2021 - SA2
Sky & Telescope - January 2021 - SA3
Sky & Telescope - January 2021 - SA4
Sky & Telescope - January 2021 - SA5
Sky & Telescope - January 2021 - SA6
Sky & Telescope - January 2021 - SA7
Sky & Telescope - January 2021 - SA8
Sky & Telescope - January 2021 - SA9
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/newtrack/st_201612
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