2017, August 13: Venus in Morning Sky

Venus shines this morning in front of the stars of Gemini with its bright stars Castor and Pollux appear to the left of the bright planet.  The star Betelgeuse appears to the upper right of Venus.  The trio of stars are among the bright Winter Stars that shine from the southern sky during the early evening hours of the winter months.  On August mornings they appear in the eastern sky during the pre-dawn hours.

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2017, August 7: Jupiter and Saturn

Jupiter appears in the western sky this evening.  It appears lower in the sky each evening as it is heading toward its solar conjunction.  It appears near Spica, but the star is hidden by the trees in the image above.  Spica is about 7 degrees to the lower left of Jupiter this evening.  Jupiter is heading toward its final conjunction with Spica in this triple conjunction appearance.

Meanwhile, Saturn — the Ringed Wonder — is in the southern sky.  It is about 13 degrees to the upper left of the star Antares.

Jupiter is slowly moving toward Saturn for a 2020 conjunction.  Tonight the pair is over 60 degrees apart.  Conjunctions of Jupiter and Saturn are uncommon.  They occur in intervals of about 20 years.  During the 2020 conjunction the two planets appear about 0.1 degree apart on December 21.

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2017, August 2: Venus in Morning Sky

2017, August: Venus


Venus:  August 2, 2017


Venus: August 13, 2017

Venus is “that bright star” in the predawn sky.  During August 2017, Venus rises about 3 hours before sunrise and the beginning of twilight.

On the morning of August 19, the waning crescent moon appears about 4.5 degrees to the lower left of Venus.

As summer turns into fall, Venus passes Regulus, Mars, Spica and Jupiter.  The articles  linked below provide more details about these events.

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2017, August: Jupiter

Jupiter appears in the western sky during the early evening hours of August 2017.  It is heading toward its solar conjunction on October 26, 2017.  It reappears in the morning sky with an Epoch Conjunction with Venus on November 13, 2017.

During this appearance, Jupiter is preparing to pass Spica for a third time on September 5.  More about this in the links below.

On the evening of August 25, the crescent moon passes Jupiter and Spica.  The moon is 5.5 degrees to the upper left of Jupiter with Spica 4 degrees to the lower left of Jupiter.

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2017, August: Saturn

Saturn appears in the southern skies during the early evening hours of August 2017.  On August 2, the waxing crescent moon appears about 4 degrees to the upper right of Saturn with the reddish star Antares nearly 13 degrees to the lower right of Saturn.  Saturn is distinctly yellow-orange in color and slightly brighter than Antares.

Later in the month, the moon passes Saturn again.  On the evenings of August 29 and 30, the moon appears about 6 degrees from the planet.  On the first night the moon is the upper right of Saturn on the next evening it is to the upper left of Saturn.

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2017: October 5: Venus-Mars Conjunction

The Venus-Mars Conjunction of November 3, 2015.


The Venus-Mars Encounter, February 3, 2017.  (There was no conjunction.  Venus approached Mars and then moved away.  This was the closest approach)

Mars and Venus were last in conjunction on November 3, 2015 when they were about 3/4 degree apart.  As with the last conjunction the 2017 conjunction occurs in a sky full of planets as noted here.  Also note that these conjunctions occur farther east along the solar system’s (ecliptic) plane.

As Venus heads toward its solar superior conjunction, it passes Mars on the morning of October 5.  Conjunctions of Venus and the visible outer planets (Mars. Jupiter, and Saturn) can occur when Venus is within 47 degrees of the sun, its greatest angular separation from the sun.  Because Mars is small and its brightness greatly varies depending on its distance from Earth, Mars is dim when it appears near Venus. (Note this in the two images at the top of this article.)  A Venus-Mars conjunction cannot occur when Mars is near opposition and at its brightest.  For more about the Mars appearance and its opposition, see 2017-2019: Mars Observing Year with a Perihelic Opposition, July 27, 2018  and  2018:  Mars Perihelic Opposition.

Mars’ separation from the sun has grown to 23 degrees after its solar conjunction on July 27, 2017.  Earth is slowly catching Mars, yet opposition is months away.  From this scale drawing notice that Venus’ orbit is closer to Earth than Mars.

On conjunction morning the separation of the pair is about one-fourth of a degree.  This would be spectacular conjunction if Mars were brighter.  The planets are close for a few mornings before and after this close passing.

Future Venus-Mars Conjunctions

The next six conjunctions are summarized below:




August 24, 2019 0.31 degree (d) Venus and Mars are 3 degrees east of the sun, setting just minutes after sunset.  This conjunction is not visible.
July 13, 2021 0.49 d The pair is in the evening sky, setting about 90 minutes after sunset.  Look low in the western sky.  Regulus is about 10 degrees to the upper left of the Venus and a four-day-old waxing crescent moon is 20 degrees to upper left of Venus.  Just 2 nights before the closest conjunction look for the moon near Venus (6 degrees)
February 13, 2022 6.58 d This widely spaced conjunction occurs in the morning with the pair rising 2.5 hours before the sun.  Feb 13 is the date the of the conjunction, although the pair is closest on February 19, 5.8 degrees.  (Conjunctions are defined in at least 3 ways.)
March 12, 2022 3.99 d This conjunction is a continuation of the close approach that starts in early 2022 in the morning sky.  The first conjunction is noted above and the planets continue to be close together for many mornings.  The pair is close again on March 16, 3.8 degrees
February 22, 2024 0.63 d Venus and Mars rise about 35 minutes before the sun during bright twilight.  To see this conjunction, optical assistance, binoculars or telescope, is needed.
January 8, 2026 0.17 d This conjunction is closer than the 2017 conjunction, but the planets are 1 degree from the sun, hidden in the sun’s brilliance.

From this list, the 2021 conjunction and the widely spaced conjunctions in 2022, with an extended period when the two planets appear together, are the best times to see Venus and Mars close together during the next decade.