Sky and Telescope - January 2016 - 44
OBSERVING
Planetary Almanac
Sun and Planets, January 2016
Mercury
January
Venus
-26.8
32′ 32″
-
0.983
31
-17° 39′
-
-26.8
32′ 28″
-
0.985
1
20h 05.5m
-21° 06′
19° Ev
-0.4
7.3″
49%
0.921
11
19h 58.4m
-18° 29′
8° Ev
+3.1
9.6″
6%
0.698
21
19h 09.6m
-19° 03′
14° Mo
+1.7
9.6″
14%
0.702
31
19h 09.4m
-20° 31′
24° Mo
0.0
7.7″
46%
0.868
1
16h 00.6m
-18° 34′
38° Mo
-4.0
14.3″
77%
1.166
11
16h 51.5m
-20° 51′
36° Mo
-4.0
13.6″
80%
1.228
21
17h 43.9m
-22° 10′
34° Mo
-4.0
13.0″
83%
1.288
31
18h 37.1m
-22° 25′
32° Mo
-3.9
12.4″
85%
1.344
1
13h 47.5m
-9° 29′
71° Mo
+1.3
5.6″
91%
1.684
16
14h 18.7m
-12° 16′
79° Mo
+1.1
6.1″
91%
1.535
31
14h 48.9m
-14° 42′
86° Mo
+0.8
6.8″
90%
1.382
1
11h 36.0m
+3° 57′ 107° Mo
-2.2
39.0″
99%
5.049
31
11h 33.5m
+4° 22′ 138° Mo
-2.4
42.4″
100%
4.648
1
16h 38.4m
-20° 28′
29° Mo
+0.5
15.3″
100%
10.860
31
16h 50.7m
-20° 49′
56° Mo
+0.5
15.8″
100%
10.525
16
1h 01.9m
+5° 55′
81° Ev
+5.8
3.5″
100%
20.096
Neptune
16
22h 38.8m
-9° 24′
43° Ev
+7.9
2.2″
100%
30.675
Pluto
16
19h 05.9m
-21° 00′
10° Mo
+14.3
0.1″
100%
33.992
Venus
31
Jupiter
Mars
Jupiter
Saturn
16
Uranus
Saturn
16
The table above gives each object's right ascension and declination (equinox 2000.0) at 0 h Universal Time on selected
dates, and its elongation from the Sun in the morning (Mo) or evening (Ev) sky. Next are the visual magnitude and
equatorial diameter. (Saturn's ring extent is 2.27 times its equatorial diameter.) Last are the percentage of a planet's disk
illuminated by the Sun and the distance from Earth in astronomical units. (Based on the mean Earth-Sun distance, 1 a.u.
is 149,597,871 kilometers, or 92,955,807 international miles.) For other dates, see SkyandTelescope.com/almanac.
Uranus
Neptune
Pluto
Vega
14 h
12h
RIGHT ASCENSION
16 h
18h
+40°
Planet disks at left have south up, to match the view in many telescopes. Blue ticks indicate the pole currently tilted
toward Earth.
10"
HERCULES
+30°
Regulus
+10°
Jupiter
Jan 2
LIBRA
-10°
Saturn
Mercury
Pluto Venus
-40°
SAGITTARIUS
CANCER
VIRGO
OPHIUCHUS
0°
AQUI LA
Mars
5
ECLI
Spica
P
8h
Castor
Pollux
GEMINI
6h
2h
4h
Pleiades
LEO
Arcturus
+20°
-30°
10 h
BOÖTES
PEGASUS
16
Betelgeuse
Rigel
Sirius
CORVUS
TIC
E R ID A N US
H Y D R A
8 am
CETUS
Fomalhaut
6 am
4 am
2 am
Midnight
10 pm
8 pm
-10°
LOCAL TIME OF TRANSIT
6 pm
4 pm
CAPRI C ORN US -30°
2 pm
The Sun and planets are positioned for mid-January; the colored arrows show the motion of each during the month. The Moon is plotted for evening dates in the Americas when it's waxing (right
side illuminated) or full, and for morning dates when it's waning (left side). "Local time of transit" tells when (in Local Mean Time) objects cross the meridian - that is, when they appear due
south and at their highest - at mid-month. Transits occur an hour later on the 1st, and an hour earlier at month's end.
44
Januar y 2016 sky & telescope
+10°
AQUARI US
Neptune
CANIS
MAJOR
Antares
+20°
0°
13
E Q U AT O R
ORION
29
+30°
Uranus
Procyon
SCORPIUS
10 am
PISCES
TA U R U S
20
CYGNUS
ARIES
19
Jan
23 -24
22h
0h
DECLINATION
16
Distance
-
Mars
1
Illumination
20h 51.0m
31
16
Diameter
-23° 05′
Mercury
1
Magnitude
18h 42.5m
31
21
11
Elongation
1
Sun
Jan 1
Right Ascension Declination
-40°
http://www.SkyandTelescope.com/almanac
Sky and Telescope - January 2016
Table of Contents for the Digital Edition of Sky and Telescope - January 2016
Contents
Sky and Telescope - January 2016 - Cover1
Sky and Telescope - January 2016 - Cover2
Sky and Telescope - January 2016 - 1
Sky and Telescope - January 2016 - Contents
Sky and Telescope - January 2016 - 3
Sky and Telescope - January 2016 - 4
Sky and Telescope - January 2016 - 5
Sky and Telescope - January 2016 - A
Sky and Telescope - January 2016 - B
Sky and Telescope - January 2016 - 6
Sky and Telescope - January 2016 - 7
Sky and Telescope - January 2016 - 8
Sky and Telescope - January 2016 - 9
Sky and Telescope - January 2016 - 10
Sky and Telescope - January 2016 - 11
Sky and Telescope - January 2016 - 12
Sky and Telescope - January 2016 - 13
Sky and Telescope - January 2016 - 14
Sky and Telescope - January 2016 - 15
Sky and Telescope - January 2016 - 16
Sky and Telescope - January 2016 - 17
Sky and Telescope - January 2016 - 18
Sky and Telescope - January 2016 - 19
Sky and Telescope - January 2016 - 20
Sky and Telescope - January 2016 - 21
Sky and Telescope - January 2016 - 22
Sky and Telescope - January 2016 - 23
Sky and Telescope - January 2016 - 24
Sky and Telescope - January 2016 - 25
Sky and Telescope - January 2016 - 26
Sky and Telescope - January 2016 - 27
Sky and Telescope - January 2016 - 28
Sky and Telescope - January 2016 - 29
Sky and Telescope - January 2016 - 30
Sky and Telescope - January 2016 - 31
Sky and Telescope - January 2016 - 32
Sky and Telescope - January 2016 - 33
Sky and Telescope - January 2016 - 34
Sky and Telescope - January 2016 - 35
Sky and Telescope - January 2016 - 36
Sky and Telescope - January 2016 - 37
Sky and Telescope - January 2016 - 38
Sky and Telescope - January 2016 - 39
Sky and Telescope - January 2016 - 40
Sky and Telescope - January 2016 - 41
Sky and Telescope - January 2016 - 42
Sky and Telescope - January 2016 - 43
Sky and Telescope - January 2016 - 44
Sky and Telescope - January 2016 - 45
Sky and Telescope - January 2016 - 46
Sky and Telescope - January 2016 - 47
Sky and Telescope - January 2016 - 48
Sky and Telescope - January 2016 - 49
Sky and Telescope - January 2016 - 50
Sky and Telescope - January 2016 - 51
Sky and Telescope - January 2016 - 52
Sky and Telescope - January 2016 - 53
Sky and Telescope - January 2016 - 54
Sky and Telescope - January 2016 - 55
Sky and Telescope - January 2016 - 56
Sky and Telescope - January 2016 - 57
Sky and Telescope - January 2016 - 58
Sky and Telescope - January 2016 - 59
Sky and Telescope - January 2016 - 60
Sky and Telescope - January 2016 - 61
Sky and Telescope - January 2016 - 62
Sky and Telescope - January 2016 - 63
Sky and Telescope - January 2016 - 64
Sky and Telescope - January 2016 - 65
Sky and Telescope - January 2016 - 66
Sky and Telescope - January 2016 - 67
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Sky and Telescope - January 2016 - 70
Sky and Telescope - January 2016 - 71
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Sky and Telescope - January 2016 - 73
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Sky and Telescope - January 2016 - 78
Sky and Telescope - January 2016 - 79
Sky and Telescope - January 2016 - 80
Sky and Telescope - January 2016 - 81
Sky and Telescope - January 2016 - 82
Sky and Telescope - January 2016 - 83
Sky and Telescope - January 2016 - 84
Sky and Telescope - January 2016 - Cover3
Sky and Telescope - January 2016 - Cover4
Sky and Telescope - January 2016 - S0
Sky and Telescope - January 2016 - S1
Sky and Telescope - January 2016 - S2
Sky and Telescope - January 2016 - S3
Sky and Telescope - January 2016 - S4
Sky and Telescope - January 2016 - S5
Sky and Telescope - January 2016 - S6
Sky and Telescope - January 2016 - S7
Sky and Telescope - January 2016 - S8
Sky and Telescope - January 2016 - S9
Sky and Telescope - January 2016 - S10
Sky and Telescope - January 2016 - S11
Sky and Telescope - January 2016 - S12
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