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It’s comet straight for us!

October 3, 2012

Well, not exactly, but I couldn’t pass up the use of a (bad) pun.

In December 2013, if predictions hold true, we should get a spectacular view of comet C/2012 S1 (ISON) .

ISON was discovered by Russian astromomers Vitali Nevski and Artyom Novichonok on 21 September 2012 using the 0.4-metre reflector of the International Scientific Optical Network near Kislovodsk, Russia.

Follow-up observations were made on 22 September by a team from Remanzacco Observatory in Italy using the iTelescope network.

Animation showing ISON’s movement (the small alternating dot in the centre of the screen)
source: http://remanzacco.blogspot.it

Preliminary analysis of the comet’s orbit shows that it will come to perihelion (closest approach to the Sun) on 28 November 2013 at approimatly 1.1million kilometres above the surface of the Sun, and will pass within 6 million kilometres of the Earth on 26 December 2013.

It should be visible through small telescopes or binoculars from August 2013, becoming visible to the naked eye by late October or early November and (assuming it survives its close encounter with the Sun) remaining so until mid-January 2014.

The exciting part of these predictions is that at its brightest is may up to magnitude -16.  This is amazing considering that a Full Moon is -13, the ISS is -6 and Venus is -5.  So possibly brighter than the Moon!

This is many times brighter than the Great Comet of 2007  which peaked at a magnitude of -5.5 (which, sadly, was only visible in the Southern Hemisphere).

Great Comet of 2007
Attribution: Fir0002/Flagstaffotos

 

We here at Sky-Watching have our fingers crossed that the predictions hold true, as it could mean some spectacular pictures.  Keep tuned for further updates as the comet approaches.

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Amazing setting moon

February 1, 2012

by matt_elk

It’s been a while since I posted anything, and it’s early in the morning, so something nice and easy for everyone.

Moonset from the ISS.

“On January 9, 2012, astronauts on the International Space Station took this amazing footage of the moon setting behind the Earth’s limb. Air near the horizon is thicker, and acts like a lens. That bends the light from the bottom of the Moon up, squashing the Moon’s shape as you watch! “

source: Bad Astronomy

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That’s no moon, it’s a…… oh wait, they’re all moons

September 15, 2011

by matt_elk

Here’s another amazing picture from the Cassini probe.

A quintet of Saturn's moons come together in Cassini's field of view for this portrait - Credit: NASA/JPL-Caltech/SSI

From left to right; Janus (179 km diameter), Pandora (81 kilometres diameter), Enceladus (504 kilometres diameter), Mimas (396 kilometres diameter) and finally Rhea (1528 kilometres diameter).

This picture was taken by Cassini’s narrow-angle camera on July 29, 2011 at an approximate distance of 1.1 million kilometers from Rhea and 1.8 million kilometres from Enceladus.

And people say that NASA is a waste of money. Pah.

Source: CICLOPS via MSNC

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Help discover our universe, and Sarah Connor

September 14, 2011

by matt_elk

The International Centre for Radio Astronomy Research has started a new project, theSkyNet. It is a distributed/cloud computing project taking data from radio telescopes and using the spare processing power of your PC to help process the data from the scopes.

If you want to help out, first of all you need to register an account, once you’ve done this, you have two choices of how you contribute your spare CPU cycles.  Either you can manually start it by going to your account dashboard and click “Start”, or you can download the automatic client which will run automatically at start-up.

They currently have clients for Windows (32 & 64bit) and Macintosh (10.4 and up), and have a Linux one in the pipeline.

You can also band together in alliances to pool your computational resource.  We have our own alliance at sky-watching.co.uk, it’s called “Sky-Watching“, it’s publicly join-able, so if you fancy giving some CPU resource from your computer to help map the universe, sign up and join our alliance.

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In the Shadow of Saturn

September 9, 2011

by mattelk

Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA

This amazing picture was taken by the Cassini spacecraft while it drifted in the shadow of the planet, looking towards the eclipsed sun.  The night side of the planet is illuminated by sunlight reflected from its own ring system, and the rings themselves are lit by sunlight scattering off of the particles in the ring system.

If you look closely on the left hand side just above the main bright rings, that tiny dot,  that’s us.  Well, the earth that is, not just this blog :-)

The outer visible ring is actually Saturn’s E ring. this is the ring that is formed from the ejections from the recently discovered ice-fountains of the moon Enceladus.

Source: NASA

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