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Monday, August 09, 2021

 

Thursday August 12 to Thursday August 19

The First Quarter Moon is Monday, August 16.  This is a perigee First Quarter Moon. Venus is readily visible in the evening twilight. Mercury rises in the evening twilight and is close to Mars on the 19th. Saturn and Jupiter are visible in the evening sky. Jupiter is at opposition on the 19th, when it is biggest and brightest as seen from Earth. Venus is seen in the west and Jupiter in the east when the sky is fully dark.

The First Quarter Moon is Monday, August 16.  This is a perigee First Quarter Moon with the moon at Perigee, when it is closest to the Earth, on the 17th.

Evening twilight sky on Thursday, August 19 looking north-west as seen from Adelaide at 18:43 ACST (60 minutes after sunset). Venus is high above the horizon with Mars and Mercury low on the horizon below.

The insets show the telescopic view of Venus and the binocular view of Mars and Mercury at this time.

 Similar views will be seen throughout Australia at the equivalent local time (60 minutes after sunset, click to embiggen).

Evening sky on Thursday, August 19 showing the eastern sky as seen from Adelaide at 20:00 pm ACST. Saturn and Jupiter form a line in the  evening sky. Jupiter is at Opposition, when it is biggest and brightest as seen from Earth.

The insets shows the telescopic views of Jupiter and Saturn at this time at the same scale.On the evening of the 15th an morning of 16th there will be a series of Jupiter Moon shadow transits.
 
Similar views will be seen elsewhere in Australia at the equivalent local time, click to embiggen.

Whole sky at 19:09 ACST  (90 minutes after sunset), on Saturday, August 14 as seen from Adelaide

 
 
 
 
 
 
Similar views will be seen elsewhere at the equivalent local time (90 minutes after sunset). click to embiggen.

Mercury climbs rapidly in the twilight and is close to Mars on the 19th.

Venus is visible in the early evening when the sky is fully dark.  I have been able to see Venus from 10 minutes after sunset and it is easily seen up to 90 minutes after sunset, longer if you have a clear western horizon.  When the sky is fully dark you can see Venus above the western horizon and bright Jupiter above the eastern horizon.
 
Mars is visible in the low above the north-western horizon in the evening twilight. Mars is close to Mercury on the 19th.
   
Jupiter is now above the eastern horizon around 7 pm. Saturn and Jupiter form a line in the sky. Jupiter is at Opposition, when it is biggest and brightest as seen from Earth, and is excellent in even small telescopes.
 
 Saturn is now rising around 4:00 pm (before sunset). Saturn was at opposition, when it is biggest and brightest as seen from Earth, on August 2nd. But it is still is an excellent time for telescopic observation.
 
Printable PDF maps of the Eastern sky at 10 pm AEST, Western sky at 10 pm AEST. For further details and more information on what's up in the sky, see Southern Skywatch.


 

Star Map via Virtual sky. Use your mouse to scroll around and press 8 when your pointer is in the map to set to the current time.

Cloud cover predictions can be found at SkippySky.

Here is the near-real time satellite view of the clouds (day and night) http://satview.bom.gov.au/

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