Posts Tagged ‘Australia’

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Astronomy Events – November 2012

October 31, 2012

by yaska77

Dark early evening skies are back with us now British Summer Time has ended, and winter is fast approaching.  We’ve had little to no opportunity for much observing or photography in recent months, something we’re hoping desperately to rectify as soon as possible!

Listed below are some upcoming astronomical events with something to interest everyone, so we hope you can get out there and get stargazing.

Clear skies all…

Thursday 1st November - Today the Moon is at Apogee (the furthest point of its orbit away from the Earth) at a distance of 406,050 km (252,308 miles)

If you have clear skies and a good pair of binoculars (or a small telescope), Uranus will be visible due south at 21:30 UTC at an altitude of 40°. See below for a guide to locating this often elusive planet!

The planet Uranus will be due south at 21:30 UTC on 1st November (click to enlarge) – Credit: Sky-Watching/Stellarium

Sunday 4th November – If you’re up late on Saturday evening, the Great Red Spot of Jupiter will be central in its band at 01:45 UTC on Sunday morning

Up fairly high above the bow of the constellation Orion and close to bright star Aldebaran in Taurus, good binoculars should help you see its moons with Ganymede closest to the gas giant (see below)

The Great Red Spot of Jupiter will be central in its band at 01:45 UTC on 4th November (click to enlarge) – Credit: Sky-Watching/Stellarium

Wednesday 7th November - Today is a last Quarter Moon

Friday 9th November – Io, one of the moons of Jupiter, will transit the disc of the gas giant this evening beginning at around 21:40 UTC. A great target for astrophotographers, Io will cast a dark shadow on Jupiter which looks great if you can capture it in an image

Catch it early enough in the transit too and you should also get the Great Red Spot in the same shot!

Sunday 11th November – Bright planet Venus will appear very close to the waning crescent Moon before Sunrise this morning, visible around 05:15 UTC to the east and a great target for a photo or two!

Different Moon phase but similar effect, our image of Venus and the waxing crescent Moon from January this year came with added Earthshine! (click to enlarge) – Credit: Sky-Watching/A.Welbourn

Tuesday 13th November - Today there is a new Moon which rises and sets just before the Sun, so now is a good time (especially with longer evenings!) to view deep sky objects like galaxies and nebulae

Wednesday 14th November - There will be a total eclipse of the Sun today, with totality visible from northern Australia and the southern Pacific Ocean. The most populous city to experience totality will be Cairns, which will experience 2 minutes of totality just an hour after daybreak (06:38 AEST 14th November/20:38 UTC 13th November)

The Moon is also at Perigee (the closest point of its orbit to the Earth) at a distance of 357,360 km (222,053 miles)

Friday 16th November - The annual Leonid Meteor Shower peaks overnight this evening (actually at 09:30 UTC on 17th) but you could see between 5-15 meteors per hour as the night progresses

The Leonid Meteor Radiant shown above at 02:00 UTC on 17th November (where the meteors will appear to enamate from). Leonids are famous for appearing as fireballs with fast tails (click to enlarge) – Credit: Sky-Watching/Stellarium

While it’s not expected this year’s shower will produce the high numbers of meteors seen in previous years, they should still put on a good display for a couple of days yet

And with the Moon out of the way it could be a good show!

Saturday 17th November - Mercury is in Inferior Conjunction, and won’t be visible until the end of the month when it will rise just before the Sun

Also another good evening for Leonid spotting

Tuesday 20th November - First Quarter Moon

Wednesday 28th November - Today’s Full Moon is also sometimes called Beaver Moon, Frost Moon or Hunter’s Moon, which is also at Apogee at a distance of 406,100 km (252,339 miles)

It also sees the second of two Lunar eclipses this year, in what is known as a Penumbral eclipse. This is where the Moon passes through the Earth’s shadow rather than directly behind the Earth itself (which is known as an Umbral eclipse), resulting in a partial eclipse (this time visible across the Moon’s northern region)

This image shows where on the Earth the partial eclipse will be visible (click to enlarge) – Credit: Fred Espenak (NASA GSFC)

Observers in Alaska, Hawaii, Australia, or east Asia will catch the whole event, with the US and Canada seeing it at Moonset (see above), and Europe seeing some of the partial eclipse at Moonrise

However, in the UK the Moon will rise at 15:30 UTC so with this partial eclipse only lasting just over an hour it will be very difficult to see

Planets visible this month:

Mercury
Venus
Mars
Jupiter
Uranus
Neptune
Saturn

Remember, it can take your eyes up to 20 minutes to become properly dark adapted, and anything up to an hour for a telescope to reach ambient temperature outside (to ensure the best image), so give yourself plenty of time to get set up!

To make it easier to find this list of astronomical happenings you can also locate it in the “Monthly Guide” section in the menu bar to the right. Handy! :)

Guide images created with Stellarium

Archive:
Astronomy Events – October 2012
Astronomy Events – September 2012
Astronomy Events – August 2012

or click on Monthly Guide for the full archive

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Night Motion Timelapse: Ocean Sky

July 15, 2011

by yaska77

Here is another truly awesome night motion time-lapse, this time from Alex Cherney.  There are some excellent shots in this video, one of the reasons it won the overall astrophotography prize at the Starmus festival!

A LOT of work goes into these films, so we like to help highlight them so more people can enjoy them!

Ocean Sky from Alex Cherney on Vimeo.

Ocean Sky
by Alex Cherney

About this video:

At a star party in August 2009 I took my first long exposure photograph of the night sky. I was so thrilled with the results that I dedicated most moonless weekends since then to photographing two things I love the most in nature – the night sky and the Ocean.

Taking a series of images and combining them into a time lapse video sequence made it even more interesting. I have since experimented with all-night time lapses, panning motion, etc. But most importantly I’ve enjoyed the journey immensely.

This time lapse video is the result of almost 1.5 years of work, 31 hours of taking images during six nights on Southern Ocean Coast in Australia.

Ocean Sky was awarded the overall winner prize at STARMUS astrophotography competition.

The soundtrack is by Redmann

There’s not much else that needs saying really, just go full screen and enjoy! :)

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Total lunar eclipse – 15th June 2011

June 14, 2011

by yaska77

As featured in our Astronomy Events for June list, a total lunar eclipse will take place tomorrow (15th June), the first of two this year with the second occurring on 10th December. This will be a relatively rare event, as the centre point of Earth’s shadow is over the disk of the moon.

The last time an eclipse was closer to the centre was in July 2000, with the next central total lunar eclipse not until 2018.

Lunar eclipse from 16th July 2000 - Credit: NASA APOD/Noel Munford

It will be visible completely over Central Asia and Africa, visible at moon-rise over Europe, western Africa and South America, and during moon-set over eastern Asia. In western Asia, Australia and the Philippines the eclipse will be visible only just before sunrise.

Eclipse guide (Click to enlarge in new tab) - Credit: Fred Espenak (NASA GSFC)

Weather forecast for us tomorrow doesn’t look great at the moment, but any chance of getting a look and we’ll try and get some images for you.  Otherwise, we hope you have clear skies wherever you are, and enjoy the show!

For more UK related info and a way to watch the eclipse from your browser or Android phone, click here

And to view the images we captured thanks to SLOOH click here

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Our beautiful planet – Islands and Atolls

May 26, 2011

by yaska77

Staring so often skyward we can forget just how beautiful and amazing our planet really is. NASA’s Earth Observatory gathers together satellite images and photographs taken from the ISS and has formed a comprehensive library of stunning pictures.

Featured in this post are some of the best examples of fantastic islands and atolls on Earth, photographed from space. Beautiful.

Click the image to go full size (opens in new tab).

Astronaut photograph ISS024-E-11914 was acquired on August 13, 2010, with a Nikon D2Xs digital camera using a 400 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.

Mataiva Atoll, Tuamotu Archipelago, South Pacific Ocean - Credit: NASA

The Tuamotu Archipelago is part of French Polynesia, and forms the largest chain of atolls in the world. This astronaut photograph features Mataiva Atoll, the westernmost atoll of the Tuamotu chain. An atoll is a ring-shaped island that encloses a central lagoon. The mottled effect in the middle is caused by links of coral criss-crossing the lagoon.

Astronaut photograph ISS026-E-16287 was acquired on January 9, 2011, with a Nikon D2Xs digital camera using an 180 mm lens, and is provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center.

Onekotan Island, Kuril Islands, Russian Federation - Credit: NASA

Snow cover highlights the calderas and volcanic cones that form the northern and southern ends of Onekotan Island, part of the Russian Federation in the western Pacific Ocean. Calderas are depressions formed when a volcano empties its magma chamber in an explosive eruption and then the overlaying material collapses into the evacuated space.

Astronaut photograph ISS026-E-33193 was acquired on March 10, 2011, with a Nikon D3S digital camera using an effective 135 mm lens.

Cat Island, Bahamas - Credit: NASA

Cat Island is one of 29 islands, 661 cays, and 2,387 islets that form the Commonwealth of the Bahamas. Mount Alvernia—the highest point in the Bahamas, with an elevation of approximately 63 metres (206 feet) above sea level—is located on the southeastern part of the island.

Like most other islands in the Bahamas, Cat Island is located on a large depositional platform that is composed mainly of carbonate sediments and surrounding reefs.

NASA Earth Observatory images by Robert Simmon, using EO-1 ALI data provided by the NASA EO-1 team.

Maupiti Island - Credit: NASA/Robert Simmon

Spanning less than 10 kilometres (6 miles), Maupiti Island sits in the South Pacific Ocean, about 46 kilometres (29 miles) west of Bora Bora. The remote island lies 5,800 kilometres (3,600 miles) from Australia, and about 3,800 kilometres (2,400 miles) from New Zealand.

Maupiti consists of a central island poking 213 metres (700 feet) above the sea surface, framed by low-profile serpentine islands and coral reefs that enclose a lagoon.

NASA Earth Observatory image created by Jesse Allen and Robert Simmon, using Landsat data provided by the United States Geological Survey.

Semisopochnoi Island, Alaska - Credit: NASA/Jesse Allen/Robert Simmon

Top right in this image is the “Island of the Seven Mountains, ” or more precisely in Russian: “having seven hills.” Situated on the far end of the Aleutians, Semisopochnoi Island is an uninhabited volcanic island and also an important nesting area for maritime birds of the North Pacific.

NASA image by Jeff Schmaltz, MODIS Rapid Response Team.

Archipel des Tuamotu - Credit: NASA

The islands in the Archipel des Tuamotu (Tuamotu Archipelago) sprawl across the South Pacific. On May 19, 2010, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired this natural-color image of the northwestern portion of the archipelago, including the largest coral atoll in the group, Rangiroa. Delicate rings of iridescent blue-green surround deep blue waters and clouds float overhead.

There is a lot of awesome natural beauty that can be found on our planet, and we will share more with you over coming posts. Images of our planet from space.

Nice!

Source: NASA Earth Observatory

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Jodrell Bank to become base for Square Kilometre Array

April 2, 2011

by yaska77

The Jodrell Bank Observatory (in Cheshire) has been selected to become the headquarters for a new £1.3bn project to build the world’s biggest radio telescope.

An agreement to run the “Square Kilometre Array” from Jodrell was signed by the UK, France, Germany, Italy, the Netherlands, Australia, New Zealand, China and South Africa.

The SKA (which could be built in Australia or southern Africa) is designed to answer some key questions about the Universe.  It takes it’s name from the size of its collecting area, made up of thousands of smaller dishes rather than one giant one (the combined size being approximately one square kilometre giving 50 times the sensitivity, and 10,000 times the survey speed, of the best current-day telescopes).

Artist's Impression Credit : SPDO, Swinburne Astronomy Productions

The new headquarters at Jodrell is expected to open January next year.  Partners from 20 countries are currently involved in the project and construction of the SKA could begin by 2016, with the telescope expected to be complete by 2024.  It’s hoped it will reveal how planets and galaxies are born, give clues to the nature of dark energy and even help to detect signs of possible alien civilisations.

Jodrell Bank has been responsible for some hugely important astronomical discoveries since it was established after the Second World War.

A more detailed article can be found on the BBC website.

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