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Wednesday, December 03, 2014


The Sky This Week - Thursday December 4 to Thursday December 11

The Full Moon is Saturday December 6.   Venus is low in the evening sky. Mars is easily visible in the early evening.  Jupiter is prominent in the morning sky, the Moon is near Jupiter on December 11. Comet C/2102 Q2 Lovejoy visible in small telescopes in the early evening.

The Full Moon is Saturday December 6.

Evening sky on Thursday December 4 looking west as seen from Adelaide at 22:00 (10:00 pm) ACDST in South Australia.  Mars is close to the faint cluster M75(see inset). Similar views will be seen elsewhere at the equivalent local time (click to embiggen).

Venus is very difficult to see low on the western horizon in the twilight. At civil twilight, half an hour after sunset, it is a mere 3 finger-widths above the horizon. While Venus is bright it might be possible to see not long after sunset, but you will need a flat, clear horizon like the ocean to see it.

 Mars  is easily seen in the western evening sky, setting just before midnight. Mars was at opposition, when it is biggest and brightest, on the 9th of April, and is still  readily distinguishable as the bright red/orange object above the western horizon in the early evening.

Mars is in the constellation of  Capricornius. On the 4th it will be in binocular range of the faint globular cluster M75.

Morning sky on Thursday December 11 looking north as seen from Adelaide at 5:00 am ACDST.  Jupiter is above the north-east horizon and not far from the Moon. (click to embiggen).

Saturn is lost in the twilight.
Mercury  is lost in the twilight.

 Jupiter  rises higher in the morning sky, and now is easy to see above the horizon before twilight. Jupiter is the brightest object above the northern horizon. It is now not far from the bright star Regulus in the sickle of Leo (this forms the head of the constellation of the  Lion).

It is now high enough for good telescopic observation before astronomical twilight. On Thursday December 11 Jupiter is near the waning Moon.

Evening sky on Saturday December 6 looking south-east  as seen from Adelaide at 22:00 (10:00 pm) ACDST in South Australia. Comet C/2014 Q2 Lovejoy is below Canopus.  Similar views will be seen elsewhere at the equivalent local time (click to embiggen).

C/2014 Q2 Lovejoy is brightening in the sky much faster than expected. The comet is passing below the star Canopus heading towards Orion, passing above Canis Major. It is brightest in January, but should be easily visible in binoculars in the second half of the month after the Moon leaves the evening sky. Binoculars or small telescopes should show it as a small fuzzy patch with maybe the hint of a tail. A B and W printable  spotters map is available here , the large circle is the approximate field of view of 10x50 binoculars.

At magnitude 8.0 you will need to let your eyes adapt to darkness to see the comet clearly.

There are lots of interesting things in the sky to view with a telescope. Especially with Mars prominent in the early evening sky.  If you don't have a telescope, now is a good time to visit one of your local astronomical societies open nights or the local planetariums.

Printable PDF maps of the Eastern sky at 10 pm AEST, Western sky at 10 pm AEDST. For further details and more information on what's up in the sky, see Southern Skywatch.

Cloud cover predictions can be found at SkippySky.


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