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APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Thu Apr 26, 2012 4:06 am
by APOD Robot
Image Morning, Moon, and Mercury

Explanation: Last week Mercury wandered far to the west of the Sun. As the solar system's innermost planet neared its greatest elongation or greatest angle from the Sun (for this apparition about 27 degrees) it was joined by an old crescent Moon. The conjunction was an engaging sight for early morning risers in the southern hemisphere. There the pair rose together in predawn skies, climbing high above the horizon along a steeply inclined ecliptic plane. This well composed sequence captures the rising Moon and Mercury above the city lights of Brisbane in Queensland, Australia. A stack of digital images, it consists of an exposure made every 3 minutes beginning at 4:15 am local time on April 19. Mercury's track is at the far right, separated from the Moon's path by about 8 degrees.

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Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Thu Apr 26, 2012 4:16 am
by Beyond
All that light pollution and it still came out good.

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Thu Apr 26, 2012 5:22 am
by Mactavish
Now here is an image that required meticulous planning and execution, and very skilled processing. This is photographic excellence. Great job, Stephen!

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Thu Apr 26, 2012 1:49 pm
by Chris Peterson
Beyond wrote:All that light pollution and it still came out good.
Sometimes light pollution can actually help with images like this. The Moon and planets image better against a sky that isn't completely dark. Of course, most of the light "pollution" in this case is still coming from the Sun, not far below the horizon.

Morning, Moon, Mercury and Moreton Bay

Posted: Thu Apr 26, 2012 2:48 pm
by neufer
http://en.wikipedia.org/wiki/Brisbane_River wrote:
<<Before European settlement, the Brisbane River was spiritually important and a vital food source for the Aboriginal people of the Turrbal nation, primarily through fishing in the tidal sections downstream, with fishing and firestick farming in the upper reaches where there was freshwater, depending on the season. The language group common to most of the area was the Yugarabul language group.
Image
Four European navigators, namely Captain Cook, Matthew Flinders, John Bingle and William Edwardson, all visited Moreton Bay but failed to discover the river. The exploration by Flinders took place during his expedition from Port Jackson north to Hervey Bay in 1799. He spent a total of 15 days in the area, touching down at Woody Point and several other spots, but failed to discover the mouth of the river although there were suspicions of its existence. This is consistent with accounts of many other rivers along the east coast of Australia, which could not be found by seaward exploration but were discovered by inland travellers.

On 21 March 1823, four ticket-of-leave convicts sailing south from Sydney on a timber getting mission to Illawarra, Thomas Pamphlett, John Finnegan, Richard Parsons and John Thompson were blown north by a storm. They went 21 days without water, continuing north in the belief they had been blown south, during which time Thompson died. They landed on Moreton Island on 16 April and made it to the mainland on the south of the Brisbane River. They immediately began trekking north in order to return to Sydney, still believing themselves to be somewhere south of Jervis Bay. Subsequently they became the first known Europeans to discover the river, stumbling across it somewhere near the entrance. They walked upstream along its banks for nearly a month before making their first crossing at 'Canoe Reach', the junction of Oxley Creek. It was here they stole a small canoe left by the Australian Aborigines of the region.
John Joseph William Molesworth Oxley was Surveyor General of New South Wales when, in the same year and under orders from Governor Brisbane, he sailed into Moreton Bay looking for a suitable new site for a convict settlement to be established. An entry in Oxley's diary on 19 November 1823 describes his surprise meeting with one of the shipwrecked men: "We rounded the Point Skirmish about 5 o'clock and observed a number of natives running along the beach towards the vessel, the foremost much lighter in colour than the rest. We were to the last degree astonished when he came abreast the vessel to hear him hail us in good English." By that time Pamplett and Finnegan were living with natives near Bribie Island. Parsons, who had continued to travel north in search of Sydney, was never heard of again.

On 2 December 1823, Oxley and Stirling, with Finnegan as a somewhat reluctant guide, entered the river and sailed upstream as far as present-day Goodna. Oxley noted the abundant fish and tall pine trees. Early European explorers marvelled at the sheer natural beauty they witnessed while travelling up the lower reaches. In the same year, the river was named after Sir Thomas Brisbane, the then Governor of New South Wales.>>

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Fri Apr 27, 2012 1:18 am
by apod_luvr
What is the thing on the left? A tumbling satellite? But it's tracking parallel to the Moon and Mercury...

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Fri Apr 27, 2012 3:05 am
by neufer
apod_luvr wrote:
What is the thing on the left? A tumbling satellite? But it's tracking parallel to the Moon and Mercury...
The brightest line of stars on the left is Markab above followed (about an hour later) by Algenib on the bottom.

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Sun Jun 10, 2012 7:16 pm
by elarai
Apod those images are so clear, pretty awesome shots! Did you happen to get any of venus passing across the sun recently?

Re: APOD: Morning, Moon, and Mercury (2012 Apr 26)

Posted: Sun Jun 10, 2012 7:29 pm
by bystander
elarai wrote:Apod those images are so clear, pretty awesome shots! Did you happen to get any of venus passing across the sun recently?
APOD: 2012 June 05
APOD: 2012 June 07
APOD: 2012 June 08
APOD: 2012 June 09

Gallery: Venus Transit 2012