Tuesday, July 04, 2017
The Sky This Week - Thursday July 6 to Thursday July 13
The Full Moon is Sunday, July 9.
Mercury climbs higher in the evening twilight sky. It is now readily visible above the western horizon half an hour after sunset, and is obvious at last 45 minutes after sunset if you have a reasonably level unobstructed horizon.
Similar views will be seen elsewhere in Australia at the equivalent local time. (click to embiggen).
Jupiter is rising before sunset and is now high above the northern horizon in the early evening ju before full dark. It is in between the bright star Spica, the brightest star in the constellation of Virgo, and the relatively bright star Porrima. Jupiter is now closer to Porrima than Spica.
Opposition, when Jupiter is biggest and brightest as seen from Earth, was on April the 8th. Jupiter is rising before the sun sets and is visible until jussssst . Jupiter is a good telescopic target from astronomical twilight on, and the dance of its Moons is visible even in binoculars. The following Jupiter events are in AEST.
Thu 6 Jul 18:31 Gan: Disappears into Eclipse Thu 6 Jul 20:43 Gan: Reappears from Eclipse Fri 7 Jul 22:03 GRS: Crosses Central Meridian Sat 8 Jul 17:55 GRS: Crosses Central Meridian Sat 8 Jul 23:15 Io : Disappears into Occultation Sun 9 Jul 20:28 Io : Transit Begins T Sun 9 Jul 21:44 Io : Shadow Transit Begins ST Sun 9 Jul 22:31 Eur: Disappears into Occultation ST Sun 9 Jul 22:40 Io : Transit Ends S Sun 9 Jul 23:42 GRS: Crosses Central Meridian Sun 9 Jul 23:55 Io : Shadow Transit Ends Mon 10 Jul 17:44 Io : Disappears into Occultation Mon 10 Jul 19:34 GRS: Crosses Central Meridian Mon 10 Jul 21:13 Io : Reappears from Eclipse Tue 11 Jul 18:23 Io : Shadow Transit Ends T Tue 11 Jul 19:49 Eur: Transit Ends Tue 11 Jul 19:57 Eur: Shadow Transit Begins S Tue 11 Jul 22:21 Eur: Shadow Transit Ends Wed 12 Jul 21:13 GRS: Crosses Central Meridian Thu 13 Jul 19:46 Gan: Reappears from Occultation Thu 13 Jul 22:31 Gan: Disappears into Eclipse
The inset shows the telescopic view of Saturn at this time. Similar views will be seen elsewhere in Australia at the equivalent local time, an hour and a half after sunset. (click to embiggen).
Saturn was at opposition on the 15th, when it was biggest and brightest in the sky as seen from earth. Saturn is visible all night long. Saturn is a good telescopic target from 9 pm on. It is poised above the dark rifts in the Milky Way and is in a good area for binocular hunting. It continues to climb into the evening skies as the week progresses. Saturn's rings are visible even in small telescopes and are always good to view. On the 7th the waxing Moon is just below Saturn.
The constellation of Scorpio is a good guide to locating Saturn. The distinctive curl of Scorpio is easy to see above the north-eastern horizon, locate the bright red star, Antares, and the look below that towards the horizon, the next bright object is Saturn.
Similar views will be seen throughout Australia at the equivalent local time (that is 60 minutes before sunrise, click to embiggen).
Venus climbs higher in the morning sky and is visible in telescopes as a "half-Moon". During the Week Venus moves towards the bright star Aldebaran passing between the Pleiades and Hyades clusters.
Mars is lost in the twilight.
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.
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/
Labels: weekly sky