Sky and Telescope - November 2018 - 44

NOVEMBER 2018 OBSERVING
Planetary Almanac

PLANET VISIBILITY Mercury: hidden in the Sun's glow all month * Venus: visible at dawn all
month * Mars: visible at dusk, sets near midnight * Jupiter: visible at dusk through November 7th *
Saturn: visible at dusk, sets early evening
Mercury

November Sun & Planets
Nov 1

11

30

21

Date

Declination

Elongation

Magnitude

1

14h

23.5m

-14° 15′

-

-26.8

32′ 14″

-

0.993

30

16h

22.6m

-21° 33′

-

-26.8

32′ 26″

-

0.986

1

15h

52.0m

-22° 51′

23° Ev

-0.2

6.0″

74%

1.121

11

16h 35.4m

-24° 45′

23° Ev

-0.2

7.2″

52%

0.929

21

16h 41.1m

-23° 22′

14° Ev

+1.5

9.2″

15%

0.729

30

15h 58.5m

-18° 46′

6° Mo

+3.8

9.7″

3%

0.693

1

13h

42.8m

-16° 09′

10° Mo

-4.2

60.6″

1%

0.275

11

13h 30.9m

-12° 22′

23° Mo

-4.6

55.3″

8%

0.301

21

13h 33.6m

-10° 10′

33° Mo

-4.8

47.8″

17%

0.349

30

13h 47.2m

-9° 45′

39° Mo

-4.9

41.4″

25%

0.403

1

21h

36.3m

-16° 42′

103° Ev

-0.6

11.9″

86%

0.788

16

22h

09.9m

-13° 07′

96° Ev

-0.3

10.5″

86%

0.895

30

22h 42.6m

-9° 27′

91° Ev

-0.1

9.3″

86%

1.001

1

15h 44.1m

-19° 04′

20° Ev

-1.7

31.3″

100%

6.290

30

16h 10.7m

-20° 24′

3° Mo

-1.7

31.1″

100%

6.344

1

18h

20.3m

-22° 47′

56° Ev

+0.6

15.7″

100%

10.577

30

18h

32.4m

-22° 42′

30° Ev

+0.5

15.2″

100%

10.903

Uranus

16

1h

50.1m

+10° 44′

156° Ev

+5.7

3.7″

100%

18.959

Neptune

16

-7° 25′

110° Ev

+7.9

2.3″

100%

29.584

Venus

Sun

Mercury

30
1

16

Venus

Mars

1

16

Right Ascension

Diameter

Illumination

Distance

30

Jupiter

Mars

16

Jupiter

Saturn

Saturn
16
Uranus

Neptune

23h 00.6m

10"

The table above gives each object's right ascension and declination (equinox 2000.0) at 0h 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.

view in many telescopes. Blue ticks indicate the
pole currently tilted toward Earth.

14h
RIGHT

+40°

10 h

12h
ASCENSION

+30°
BOÖTES

8h
Castor
Pollux

4h

6h

30

VIRGO

Regulus

16 h

18 h

20 h

Vega

Pleiades

27

Arcturus

22h

0h

2h

TA U R U S

ECL

Nov 22 - 23

CANCER

+30°

CYGNUS

ARIES

LEO

+20°
+10°

GEMINI

PEGASUS
HERCULES

PISCES

IPT

IC

Uranus

-10°

Spica

Sirius

CORVUS

ER ID A NUS

H Y D R A

CANIS
MAJOR

-30°

10 am

Neptune A QUA R IUS

18

Rigel

LIBRA

-40°

E Q U AT O R

ORION

Venus

8 am

6 am

4 am

2 am

+20°
+10°

OPHIUCHUS

Betelgeuse
Procyon

0°

D E CLI NATI O N

PLANET DISKS have south up, to match the

CETUS

Mars
Fomalhaut

LOCAL TIME OF TRANSIT
10 pm
Midnight

14

0°

A QUIL A

Nov
11 Saturn

6 pm

Jupiter

Mercury Antares

CA P R ICOR NUS
SAGITTARIUS

8 pm

-10°

4 pm

-30°
SCORPIUS
- 40°

2 pm

The Sun and planets are positioned for mid-November; 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

N OV E M B E R 2 018 * SK Y & TELESCOPE


http://www.skyandtelescope.com/almanac

Sky and Telescope - November 2018

Table of Contents for the Digital Edition of Sky and Telescope - November 2018

Contents
Sky and Telescope - November 2018 - Cover1
Sky and Telescope - November 2018 - Cover2
Sky and Telescope - November 2018 - 1
Sky and Telescope - November 2018 - Contents
Sky and Telescope - November 2018 - 3
Sky and Telescope - November 2018 - 4
Sky and Telescope - November 2018 - 5
Sky and Telescope - November 2018 - 6
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