Page 41 - Astronomy - October 2017 USA

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.

LAC CVn Jupiter’s moons
CYG Objects visible in the evening
Dots display positions
LYR HER CrB BOÖ of Galilean satellites at Io
COM
10 P.M. EDT on the date Europa
VUL shown. South is at the
DEL top to match S
SGE
Julia the view Ganymede
through a W E
EQU SER telescope. N
AQL VIR Callisto
Celestial equator OPH
AQR 1
Neptune
LIB Jupiter
SCT 2
SER Mercury Sun
CRV 3
CAP Pluto
Saturn 4 Callisto
PsA SGR 5
MIC
CrA SCO 6
TEL 7
LUP CEN
GRU
8
Early evening
9
10
3 2 1
11 Jupiter
12 Io
30 29 28 27 26 25 24 23 22 21 20 19 18
13
14
15
The planets 16
Mars Ceres
Aphelion is in their orbits 17
October 7
Arrows show the inner planets’
18 Ganymede
monthly motions and dots
Venus Earth depict the outer planets’ 19
positions at midmonth from
20
high above their orbits.
21
Mercury 22 Europa
Jupiter Superior conjunction
is October 8
23
Uranus 24
Opposition is
25
October 19
26
Jupiter 27
Solar conjunction 28
is October 26
Neptune 29
Neptune
Saturn ILLUSTRATIONS BY ASTRONOMY: ROEN KELLY
30
31
Pluto

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