Archive for the ‘ISS’ Category

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Astronomy Events – June 2012

June 1, 2012

by yaska77

The rains of early May soon departed but sunnier days ended with hazy skies. So we’ve not seen much at all recently to be honest! Ever the optimists though, below you’ll find some interesting upcoming Astronomy Events for June where we’ve tried to list something of interest to everyone to keep you all watching the skies!

Don’t miss the special event from 5th to 6th June, there won’t be another in our lifetime!

Sunday 3rd June – The Moon is at Perigee at a distance of 358,480 km

Monday 4th June – It’s a Full Moon tonight, sometimes known as the Flower Moon, Strawberry Moon or Rose Moon

The Full Moon can look beautiful but its brightness can be a problem for astronomers, and make it awkward to photograph! (Click to enlarge) – Credit: Sky-Watching/A.Welbourn

Tuesday 5th into
Wednesday 6th June –
Venus is at Inferior Conjunction and will transit (cross in front of) the face of the Sun. The last such transit was on 8th June 2004, but if you miss this one the next won’t be for another 105 years!

“Depending on where you live worldwide, the transit of Venus will happen on June 5 or 6, 2012. If you live in the world’s Western Hemisphere (North America, northwestern South America, Hawaii, Greenland or Iceland), the transit will start in the afternoon hours on June 5

Shown above at 04:00 UTC (05:00 GMT) at sunrise in the UK, Venus will only transit the Sun’s disc for about another 50 minutes before it’s all over for another 105 years! (click to enlarge) – Credit: Sky-Watching/Stellarium

In the world’s Eastern Hemisphere (Europe, Africa, Asia, Australia or New Zealand), the transit will first be seen at sunrise or in the morning hours on June 6″ (via EarthSky)

The next transit of Venus will be on December 11, 2117

Image of the Transit of Venus captured in 2004 – Credit: Jan Herold

Remember, observing the Sun can be dangerous if you don’t have the correct gear like a solarscope, certified solar viewing filters or a pair of eclipse viewing glasses. Don’t look directly at the Sun or you will damage your eyes and your equipment

Monday 11th JuneThe International Space Station (ISS) will be visible over British evening skies towards the middle of the month. Usually making a couple of visible passes during the evening, programs like Stellarium can track the orbit of the ISS and show you where and when it’s going to rise

Alternately, you can visit a site like Heavens-Above.com, enter your location using the map and it will list the time of every visible pass over where you are over the next 10 days. Great eh!?

A long exposure shot of the ISS passing will create a bright white streak across a clear starfield background (click to enlarge) – Credit: Sky-Watching/A.Welbourn

Saturday 16th June – The Moon is at Apogee (405,790 km) the farthest it will get from the Earth on its current orbit

Sunday 17th JuneThis is the time of year to be looking for noctilucent clouds, which sometimes appear low down in the northwest (after sunset) and northeast (just before sunrise)

These clouds are in the upper atmosphere and are usually too faint to see, becoming visible only when illuminated by sunlight from below the horizon while the lower layers of the atmosphere are in the Earth’s shadow

Noctilucent clouds as captured over Sweden (click to enlarge) – Credit: P-M Hedén

Tuesday 19th JuneNew Moon which rises just before the Sun

Wednesday 20th June – Today is the Summer Solstice (actually occurring at 23:09 UTC) and the longest day in the Northern Hemisphere

Thursday 21st June - After sunset Mercury will be at its highest in the sky and is joined by a thin crescent Moon below to its left.   If you’ve got a low horizon just north of west, look out for “earthshine” illuminating the dark side of the Moon

Earthshine happens when light reflected from the surface of the Earth illuminates the dark side allowing us to see details (click to enlarge) – Credit: Sky-Watching/A.Welbourn

Monday 25th JuneMars appears close to the waxing crescent Moon this evening, with Saturn following not far behind. Possibly a good opportunity for a wide angle starfield photograph while the Moon isn’t too bright to spoil a longer exposure? If it’s clear i’ll give it a go!

Look just south of west around 22:30 BST to find the waxing crescent Moon near Mars (click to enlarge) – Credit: Sky-Watching/Stellarium

Friday 29th June – Pluto is at Opposition in Sagittarius

Planets visible this month:

Mercury
Venus
Mars
Saturn
Jupiter
Uranus
Neptune

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 – May 2012
Astronomy Events – April 2012
Astronomy Events – March 2012

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ISS pass near Venus – 17th April 2012

April 17, 2012

by yaska77

There’s a great account you can follow on Twitter if you’d like to be sent alerts whenever the ISS will be passing your location. Twisst ISS alerts send out thousands of messages every day, and right on shedule this evening the ISS began a pass over my house.

The ISS streaks across the sky near to the bright planet Venus from 17th April (click to enlarge) - Credit: Sky-Watching/A.Welbourn

Taken using a 50mm lens on a 6 second exposure (f/2.5 ISO-200), I think enough of the stars appear cleanly without too much drifting. Venus is beautiful at the moment, and it always looks great in an image!

The ISS streak seems to "phase" as it passes behind part of a tree (click to enlarge) - Credit: Sky-Watching/A.Welbourn

So, 10 minutes in the cold and a nice, bright, high ISS pass later I’m back indoors with a hot cuppa.

And my Canon Eos 550D is having its batteries charged. The Lyrids meteor shower peaks soon, I think I’ll get the flask ready for a night in the cold!

If you’re on Twitter you can follow @twisst and while you’re there, why not follow us too!

And if not you’re not on Twitter yet, come and join us!

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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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Sky-Watching Images of the Year 2011

December 31, 2011

by yaska77

You might not have noticed but we love posting astro related imagery here at Sky-Watching. With that in mind we decided to put together our favourite images from throughout the year, as voted for by us :)

Sky-Watching Image of the Year 2011

50 stacked images helped the dust lane details stand out in my image of Andromeda (click to enlarge) - Credit: Sky-Watching/A.Welbourn

At the risk of sounding like blowing our own trumpet, chosen independently as their favourite blog image from 2011 by both tte-77 and mattelk (with no coercion from me whatsoever!) this was one of the first ever stacked images I captured and processed.

Galaxies are fascinating for their variety and magnitude, so to photograph one so clearly using our own equipment through our own light polluted skies helped my M31 Andromeda image stand out.

Creating images like this was one of the main reasons I bought a telescope and camera in the first place, so astrophotography can be very rewarding when your efforts pay off.

The original post (also featuring the Orion Nebula and The Pleiades) can be viewed here.

Sky-Watching Best Planetary Image 2011

The rings of Saturn shine brightly as the planet eclipses the Sun (click to enlarge) - Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA

As soon as mattelk first posted this image of Saturn from the Cassini spacecraft we knew it would be a contender for the best planetary image of the year.

Taken by Cassini as it drifted in the shadow of the planet Saturn (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.

The small white dot just top left of the main ring system is us, planet Earth!

Jaw-dropping.

Sky-Watching Historic Images of 2011

We followed the last months of NASA’s space shuttle program incredibly closely, so as 2011 saw the end of the iconic spacecraft (with all 3 remaining orbiters retired to museums) it’s only right that we picked a couple of historic shuttle photos for images of particular historic interest.

Docked together 220 miles above the Earth, the penultimate shuttle flight STS-134 Endeavour and the ISS as photographed by ESA Astronaut Paolo Nespoli (Click to enlarge) - Credit: NASA

The image captured above by Paolo Nespoli from a Soyuz capsule returning to Earth were historic, as the first ever images taken from space of a shuttle docked to the ISS. Nothing like waiting for the penultimate mission!

NASA officials said this spacecraft “family portrait” served as a reminder of the contributions the shuttle program made to the construction of the International Space Station.  The 100 billion dollar station began assembly in 1998 with the Russian module Zarya, and then a certain orbiter called Endeavour (STS-88) took the first US built section (the Unity Module) into orbit the same year.

The NASA gallery page features several more photographs, take a look here.

Launching into history, the iconic shuttle Atlantis spears skyward beginning the last ever shuttle mission (click to enlarge) - Credit: NASA/Bill Ingalls

NASA’s space shuttle Atlantis (STS-135) blasted into orbit on 8th July 2011 on the 135th and final space shuttle mission, launching from Kennedy Space Center (on a 13 day mission delivering supplies to the ISS) with thousands of spectators lining the roads and beaches nearby.

With the shuttle flying no more, we’re eagerly awaiting NASA’s next innovation in launch systems.

It’s been a good year for great images, and we’re now eagerly waiting to see what 2012 will bring.

Different images evoke different responses in different people, but we managed to agree what images should feature, even if I abstained from voting for one of them (for obvious reasons of favouritism) ;)

And on that note all of us at Sky-Watching wish all our visitors, subscribers and Twitter followers a very Happy New Year, may 2012 be great for all of you.

So let’s finish 2011 with a smile, this little image posted through Twitter made me laugh, and from comments made it caused a few chuckles in others too!

Just for Fun

NASA claim plans to send humans back to the Moon haven't been hit by budget cuts... (click to enlarge) - Credit: Sky-Watching/A.Welbourn

Just kidding :)

Happy New Year!

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Astronomy Advent Calendar – 21st December

December 21, 2011

by yaska77

Really into the home stretch now, so here is today’s astro advent calendar image with only a few more to come!

If you have ever stood in your garden and watched the ISS pass overhead (a bright, relatively quick moving light across the sky) you’ve probably wondered just what sights they see from up there. Well, here’s a great example :)

Day 21

Astronomy Advent Calendar 21st December - The Moon and the Earth's Atmosphere (click to enlarge) - Credit: ISS Crew Earth Observations Experiment and Image Science & Analysis Laboratory/Johnson Space Center

On 31 July this year Astronauts working onboard the International Space Station took this beautiful image. The layers of the Earth’s atmosphere are nicely highlighted!

Lying closest to the Earth’s surface is the orange-red troposphere, the brown transitional layer marks the tropopause (the upper edge of the troposphere) with the white/grey layer resting above it being the stratosphere (the layer that contains noctilucent clouds). The upper atmosphere composed of the mesosphere, thermosphere, and exosphere fades from blue to the blackness of space.

Brave, adventurous and lucky astronauts, how we envy and admire you! :)

View yesterday’s image

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