The winners of the
2011 Astronomy Photographer of the Year competition snapped some incredible
images: astronomical objects from within our solar system and far into deep
space.
“This competition
provides a great opportunity to celebrate the best astrophotography in the past
year and to share these gorgeous, inspiring images with a large audience”, said
Olivia Johnson, an astronomer at the Royal Observatory and also a judge in the
competition.
Source: National
Maritime Museum
Galactic Paradise -- Forming a dramatic
backdrop to a tropical skyline, the Milky Way galaxy contains hundreds of
billions of stars in a disc-like structure. Our Sun lies within the disc, about
two-thirds of the way out from the centre, so we see it as a bright band encircling
the sky. This southern hemisphere view highlights dark clouds of dust that
aboriginal Australian astronomers called the ‘Emu in the sky’.
Source: Tunç Tezel
(Turkey)
Divine Presence -- The aurorae, or Northern
and Southern Lights, are caused by the interaction between the Earth’s
atmosphere and a stream of particles from the Sun known as the solar wind. The
Earth’s magnetic field funnels these particles down over the planet’s poles
giving rise to the glowing curtains of coloured light. These are best seen in
the night sky near to the North and South Poles.
Source: Ole C.
Salomonsen (Norway)
Jupiter with lo and Ganymede -- Jupiter is the
largest planet in the Solar System. It is a giant ball of gas with no solid
surface, streaked with colourful bands of clouds and dotted with huge oval
storms.
In addition to the
swirling clouds and storms in Jupiter’s upper atmosphere, surface features of
two of the planet’s largest moons can be seen in this remarkably detailed
montage. Io, to the lower left, is the closest to Jupiter. The most
geologically active object in the Solar System, its red-orange hue comes from
sulphurous lava flows. Ganymede, the largest moon in the Solar System, is
composed of rock and water ice. The Planet and its moons have been photographed
separately, then brought together to form this composite image.
Source: Damian Peach
(UK)
Dragon Storm -- Saturn, the second largest
planet in the Solar System, is best known for its brilliant rings. These rings
are made up of countless ice and dust particles orbiting the planet in
intricate patterns, some of which can be seen in this series of photographs.
Taken about forty minutes apart, these images show the progress of a huge
storm, called the Dragon Storm, moving in Saturn’s upper atmosphere as the
planet rotates.
Source: Paul Haese
(Australia)
Vela Supernova Remnant -- This intricate
structure is the aftermath of a supernova explosion, the violent death of a
star many times more massive than the Sun. It took place over 10,000 years ago.
Seen against stars and gas in the disc of our Milky Way , this expanding shell of
debris and heated gas now covers an area of the sky which is twenty times wider
than the disc of the full Moon.
Source: Marco
Lorenzi (Italy)
Leo Triplet -- The Leo Triplet is a group of
three spiral galaxies located thirty-five million light years away. Like our
own Milky Way, they are disc-like galaxies. They contain billions of stars with
bright knots of gas and dark dusty lanes, which trace spiral patterns where new
stars are formed. The galaxy on the left is seen edge-on, as we view our own
galaxy.
Source: Edward Henry
(USA)
Lunar Eclipse and Occultation -- A lunar
eclipse is a brief alignment of the Sun, Earth and Moon which places the Moon
in the Earth’s shadow. Here the Moon is a red colour because it is lit by
sunlight which has been filtered through the Earth’s atmosphere. The photograph
skilfully captures a second fleeting astronomical event, the moment a star
appears from behind the orbiting Moon.
Source: Jathin
Premjith (India)
Starry Night Sky -- Most stars, like the Sun,
appear to move across the sky from east to west as the Earth spins on its axis
every twenty-four hours. This long-exposure photograph captures the apparent
motion of the stars that seem to circle the area in the sky over the Earth’s
North Pole close to the Pole Star.
Source: Nicole
Sullivan (USA)
Zodiacal Light on the Farm -- The faint glow
reaching into the sky from the horizon to the right of the barn in this scene
is known as zodiacal light. Visible only in extremely dark skies, it results
from sunlight reflecting off dust particles in our Solar System.
Source: Harley Grady
(USA)
Stargazing -- In remote locations, dark skies
make it is possible to see thousands of stars using just your eyes. When the
sky is lite by the Sun, Moon or artificial lights on Earth, it blocks the view
of all but the brightest stars..
Source: Jeffrey
Sullivan (USA)
Shell Galaxies (NGC474 and NGC467) -- In the
upper left of this photograph, faint billowing shapes can be seen in the outer
regions of an elliptical galaxy. Elliptical galaxies, which can contain up to a
trillion stars, are typically smooth and shaped like a rugby ball. The delicate
wispy sheets seen in this galaxy may result from its gravitational interaction
with the nearby spiral galaxy to the right.
Source: Marco
Lorenzi
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