AQL
LY R
CYG
VUL
SGE
EQU
LAC
AQR
AND
TRI
ARI
PER
PEG
PSC
CET
SCL
FOR
ERI
DEL
SGR
SCT
SER
CAP
MIC
PsA
Sun
Early evening
Uranus
Neptune
Venu
s M
ercur
y
Venus passes 0.08° south
of Neptune on January 27
Vesta
Comet
PanSTARRS
7 6 5 4 3 2 1
31 30 29 28 27 26 25 24 23
Callisto
Europa
Ganymede
Io
Jupiter
1 2 3 4 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
31
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 7 A.M. EST on
the date shown.
South is at the
top to match the
view through a
telescope.
January 2020
Jan. 15
1.5
4.5"
95%
2.081
1.574
16h23.2m
–21°21'
Jan. 15
8.8
0.3"
100%
3.903
2.923
19h43.5m
–25°41'
Jan. 31
–1.9
32.5"
100%
6.074
5.217
18h57.3m
–22°45'
Jan. 31
0.6
15.1"
100%
10.976
10.031
19h46.3m
–21°10'
Jan. 15
5.8
3.6"
100%
19.650
19.817
2h01.4m
11°50'
Jan. 15
- 9
2.2"
100%
30.524
29.933
23h11.2m
–6°21'
Jan. 15
14.7
0.1"
100%
34.943
33.960
19h38.0m
–22°13'
MARS CERES JUPITER SATURN URANUS NEPTUNE PLUTO