Wednesday, April 26, 2017
The Sky This Week - Thursday April 27 to Thursday May 4
The First Quarter Moon is Wednesday May 3. The Moon occults the bright star Regulus on the 4th.
Similar views will be seen throughout Australia at the equivalent local time (that is 45 minutes after local sunset, click to embiggen).
Mercury is lost in twilight.
Mars is in the western evening skies in Taurus It is is low in the dusk sky, but is the brightest object above the western horizon low in the late twilight below Aldebaran. Over the week Mars passes between the Pleiades cluster and the Hyades cluster, you will need a clear, unobscured level horizon to see this though. On the 28th the tin crescent Moon form a triangle with Aldebaran and Mars.
Similar views will be seen elsewhere in Australia at the equivalent local time. that is 90 minutes after local sunset, click to embiggen).
Jupiter is rising at dusk and is now reasonably high above the horizon in the early evening this week. It is in between the bright star Spica, the brightest star in the constellation of Virgo, and the relatively bright star Porrima.
Opposition, when Jupiter is biggest and brightest as seen from Earth, was on the 8th. Jupiter is rising as the sun sets and is visible all night long. Jupiter is a good telescopic target from around 8 pm on, and the dance of its Moons is visible even in binoculars. The following Jupiter events are in AEST.
Thu 27 Apr 18:22 GRS: Crosses Central Meridian Fri 28 Apr 3:30 Eur: Transit Begins T Fri 28 Apr 4:18 GRS: Crosses Central Meridian Fri 28 Apr 4:25 Eur: Shadow Transit Begins ST Sat 29 Apr 0:09 GRS: Crosses Central Meridian Sat 29 Apr 4:52 Io : Disappears into Occultation Sat 29 Apr 18:48 Gan: Shadow Transit Ends Sat 29 Apr 20:00 GRS: Crosses Central Meridian Sat 29 Apr 22:21 Eur: Disappears into Occultation Sun 30 Apr 1:46 Eur: Reappears from Eclipse Sun 30 Apr 2:09 Io : Transit Begins T Sun 30 Apr 2:39 Io : Shadow Transit Begins ST Sun 30 Apr 4:20 Io : Transit Ends S Sun 30 Apr 4:51 Io : Shadow Transit Ends Sun 30 Apr 23:19 Io : Disappears into Occultation Mon 1 May 1:47 GRS: Crosses Central Meridian Mon 1 May 2:02 Io : Reappears from Eclipse Mon 1 May 17:43 Eur: Shadow Transit Begins ST Mon 1 May 19:02 Eur: Transit Ends S Mon 1 May 20:10 Eur: Shadow Transit Ends Mon 1 May 20:36 Io : Transit Begins T Mon 1 May 21:08 Io : Shadow Transit Begins ST Mon 1 May 21:38 GRS: Crosses Central Meridian Mon 1 May 22:46 Io : Transit Ends S Mon 1 May 23:19 Io : Shadow Transit Ends Tue 2 May 17:45 Io : Disappears into Occultation Tue 2 May 20:31 Io : Reappears from Eclipse Wed 3 May 3:25 GRS: Crosses Central Meridian Wed 3 May 4:20 Gan: Disappears into Occultation Wed 3 May 17:48 Io : Shadow Transit Ends Wed 3 May 23:16 GRS: Crosses Central Meridian Thu 4 May 19:08 GRS: Crosses Central Meridian
The inset shows the telescopic view of Saturn at this time. Similar views will be seen elsewhere in Australia at the equivalent local time. (click to embiggen).
Saturn is now visible in the evening skies this week. Saturn is a good telescopic target from 11 pm on. It continues to climb into the evening skies as the week progresses. It is within binocular distance of the Triffid and Lagoon nebula and makes a very nice sight in binoculars.
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 90 minutes before sunrise, click to embiggen).
Venus climbs higher in the morning sky and is visible in telescopes as a crescent.
Viewing hints and exact times for other cities are here.
On the early evening of Thursday 4 April the bright star Regulus is occulted by the Moon as seen from the most of Australia. This is the second of two occultations of Regulus, the brightest star in the constellation of Leo the lion, this year. The Moon is a very obvious signpost for where to look and Regulus will be the brightest object near the Moon.
There are lots of interesting things in the sky to view with a telescope. 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 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
I am so glad to have found this blog. I'm a beginner but can see that you explain things clearly. Thank you. I have a question...
I live in Raumati, New Zealand. You live in Adelaide. When you give a time for seeing something in your "This week" blog how do I work out when I will see it in the sky here?
(Hope that's not a silly question).