Sky & Telescope - January 2021 - SA4

2021

13

Eta Aquariids

16

R
17

nu

is

es

s

A

18

P

an
Tr

A

en

ts

eb

M

JUL
Y

D

si

erc

396

R

ST

427

21

B

et

e

e
lg

us

i

s
se

e

9
Perseids

16

549

DECE

Sunse

26

R

is

es

Sun
fast

Northern
Taurids

4

O

Set

U

ts

3

ra

s
nu

an
Tr

ts
si

P

le

d
ia

es

a
Tr

i
ns

ri

on

t

N

N

u
eb

S

i
ir

u

t
ep

la

i
ns

5

M

is e
Sunr

1
M

a
Tr

er

cu

Leonids

8

ry

15
Ri

ts

a
Tr Geminids
s

P

l
ol

ux

Tr

s
an

its

Se

6

Rise

U

ra

nu

s
R

eg

ul

ts
us

an
Tr

si

se

ts

Ursids

s

22

29

P

6

A

nt

ar

e

es
is
R A
s

t

5 p.m.
Conjunction
(appulse)

6
Greatest
elongation

7

8
Greatest illuminated extent

9
Opposition

10

11
New
Moon

Midnight

First
Quarter

RY

UA

BR

25

e
un sits
n

42

T

18

Orionids

ts

R

11

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

Full
Moon

1

2
Last
Quarter

3
A Apogee

4
P Perigee

5
Waxing
(moonset)

6

7 a.m.
Waning
(moonrise)

13
S u n ri se

19

s

er

m

4

n

Se

Rise

y
ur
rc Se

12

P

Me

5

MBER

28

iu

U

pp

ul

27

BER

21

r
Si

2

C

a

E

A

Set

Venus Sets

twilig
ht

14

End of evening

NOV

EMB

ER

519

P

s

20

V
NO

t

t
Se

in

io
at

ol

s
ri

R

Sa

Rise

n
ur

Southern
Taurids

1

P

13

E
MB

A

ep

e

of

S

r

OC

N

n
tu

31
7

Ju

te
pi

Computed by Roger W. Sinnott

S

ry

cu

er

M

48
8

OC

TO

17

24

6
s
et

Mars Rise s

Se

ts

30

t

BE

R

Set

FE

23

ligh
t wi

10

Tr

its

CH

2

23

s
an

AR

26

Delta
Aquariids

Rise

P

M

19

P

E
OB

JUNE

U

ra

24

3

Jan 3

L

Rise
15

GU

26

r

22

RI

Lyrids

AU

8

45

R

BE

EM

J
A

te

MORNING SKY

15

g
rnin
mo

PT

19

i
up

Tr

8

of

SE

Set

it

1

rt
Sta

12

P

s
an

22

Latest onset
of morning
twilight at
latitude 50° north
29
Mar 6 Mercury reaches
greatest elongation,
5
27° west of the Sun
12
Mar 20 Spring begins at the
equinox, 9:37 UT
19
May 26 A barely total lunar eclipse
is visible from the Pacific
26
Ocean and Rim regions, with
P
maximum at 11:19 UT
3
Jun 10 An annular eclipse of the Sun
takes place in a path from Ontario,
10 A
Canada, across the Arctic and into
northeastern Russia
17
Jun 16 Earliest sunrise of the year at latitude
50° north
24
P
Jun 21 Summer begins at the solstice, 3:32 UT
31
Jul 5 Mercury is 22° west of the Sun
Oct 25 Mercury reaches greatest elongation,
7
18° west of the Sun
Nov 8 The Moon occults Venus at midday for
14
northeastern Asia and in early afternoon
for most of Japan (except the southern21
most part)
28
Nov 19 A partial eclipse of the Moon is visible
from North America and the Pacific
5
Ocean, becoming very nearly total
around 9:03 UT
12
Dec 31 Latest sunrise of the year

14

366

MA

Y

335

s
et
sS
nu
Ve

5

15

Y

AP

w

12

RIL

3 05

MA

Jan 2 Earth is
Set
ul
147,093,163 km
21
eg
R
from the Sun
(perihelion) at
28
P
13:51 UT
Rise
Jan 11 Jupiter has Mercury
4
1.4° to its lower left and
Saturn 2.3° to lower
11
A
right, but they are quite
Set
low in bright twilight (sweep
18
for them with binoculars)
Me
25
Jan 21 Uranus can be found 1.6°
rc u
P
south of Mars in a telescope
ry
Se
2
Jan 23 Mercury reaches greatest
ts
elongation, 19° east of the Sun
A 9
May 16 Mercury is 22° east of the Sun
Set
May 28 Mercury is 0.5° left of Venus,
16
but low - use binoculars
23
Jun 21 Longest day, 16h 22m at latitude
50° north
Rise
30
Jun 25 Latest sunset
Jul 5 Earth is 152,100,527 km from the Sun
6
(aphelion) at 22:27 UT
Set
Jul 13 Mars is 0.5° below Venus, but they are
13
low (use binoculars)
es
Aug 1 Saturn comes to opposition with the
20
is
R
Sun tonight
Rise
r
27
Aug 19 Jupiter reaches opposition
ite
p
Sep 13 Mercury stands 27° east of the Sun;
Ju
4
es
19
Neptune is at opposition tonight
is
es
R
is
Set
Sep 16 Owing to precession, Polaris reaches
R
11
n
and crosses the 3h meridian of right
ur
e
t
n
ascension (equinox of date)
18
Sa
tu
20
Sep 22 Fall begins at the equinox, 19:21 UT
ep
N
25
Oct 29 Venus stands at greatest elongation,
Rise
47° east of the Sun
1
Nov 4 Uranus comes to opposition tonight
A
Dec 4 Total solar eclipse in a path across
8
Set
Antarctica
ts
si
n
Dec 9 Earliest end of evening twilight
15
a
P
Tr
Dec 12 Earliest sunset
n
22
r
22
Dec 21 Shortest day, 8h 04m at
tu
Rise
a
S
latitude 50° north; winter
A
29
begins at the solstice,
15:59 UT
s

Lo

C

a

M e rc

Tr A

er

in

es

AP

its

m
ul

Sets

us

11

o

is

EP

Se
s
U

RC

nu

H

t
ligh
twi

s
an

ra

274

g

14

ts

nin

7

Rise

n
tio

P

of

r
la

MA

FE

Sun
slow
P

1
8

10

eve

EVENING SKY

es

R

A

ar

is

s

A
Set

nt

es

R

Ri

P

9

BE

ux

25

JAN

Equation
of time

18

M
TE

P

l
ol

its

t

n

Tr

s
an

twi
ligh

a
Tr

s

ing

Si

ri

us

t
si

A

ury

n

8

11

T

M

42

a
Tr

Set

ts
si

21
28

4

US

eb

7 a.m.

G
AU

ri

N

7

Sta
rt o
fm
or n

O

on

6

JUNE

ry

5

Quadrantids

Y
JUL

rc u

a
ul

4

P

t
si

Rise

14

BR

le

n

3

s

P

es

a
Tr

MORNING

2

se

C

d
ia

Rise

1

ur y R i

t
Se

r

in

o

n

Midnight

Mars

Me

R
UA

U

e
pp

m

io
at

11

s

Tr
rs
N
JA

Ma

7

i

ul

s

la

ris

s

S

R

s
se

nu

of
End

Y

t

246

nse

31

ir

s
iu

U

ra

o
fP

10

NORTH

Rises

24

Su

ia
Ju l

17

Ju
S ep i t e
ts r

S eS a t
ts ur
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UA

RY

10

Tr

9

5 0°

us
Ven

0+
9,00
2,45
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a
215
nd

3

8

NE A R

Se
t

7

ne

6

A SUPPLEMENT TO SK Y & TELESCOPE

N
ep
tu

5 p.m.

L AT I TUDES

20
27

DECEM

EVENING

FOR

U A RY

Skygazer's
Almanac 50°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
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Sky & Telescope - January 2021 - 33
Sky & Telescope - January 2021 - 34
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Sky & Telescope - January 2021 - 42
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Sky & Telescope - January 2021 - 81
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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
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https://www.nxtbook.com/nxtbooks/aas/st_201703
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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
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