Posts Tagged ‘andromeda’

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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 – 22nd December

December 22, 2011

by yaska77

The holidays are so close now I can almost smell ‘em :) Today’s astronomy advent calendar image is another of ours taken this year.

Stacking images is a great way of improving the clarity of individual photos, bringing out far more detail than the individual shots alone could capture.

Day 22

Andromeda (M31) the spiral galaxy

Astronomy Advent Calendar 22nd December - 60 individual photos of Andromeda stacked into one image (click to enlarge) - Credit: Sky-Watching/A.Welbourn

The Andromeda Galaxy is a spiral galaxy approximately 2.5 million light-years from the Earth, in the constellation Andromeda. It’s also known as Messier 31 (M31) or NGC 224.

Andromeda is the nearest spiral galaxy to the Milky Way, but is not the closest galaxy overall, that accolade goes to the Canis Major dwarf galaxy.

60 stacked images created the final result above, taken using a Sky-Watcher Explorer 200P EQ5 PRO SynScan 200mm Newtonian Reflector Telescope and an un-modified Canon EOS 550D. To compare a single photo with the stacked image above have a look here.

Yeah, we’re pretty chuffed with our first use of DeepSkyStacker :)

View yesterday’s image

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Astronomy Events – December 2011

November 30, 2011

by yaska77

Ever get that feeling that you always suffer bad luck? The main nemesis of the amateur astronomer is clouds, and it just feels that every chance we’ve had time to get our ‘scopes out recently have coincided with clouds/rain/wind. We remain ever hopeful however that December will give us some opportunities for sky-watching and image taking! :)

Here is a list of upcoming astronomy events for December to inspire your own astronomical interests.

Friday 2nd December - First quarter Moon. This is possibly the best time to view the Moon with optical aids, as the area around the terminator (the line between the day/night sides of the Moon) is a fantastic sight full of lunar craters and mountains

Tuesday 6th December – Moon at Apogee (405,415 km), with a very bright Jupiter just beneath it. Following them across the sky you’ll see first the Pleiades cluster, the Hyades cluster and then the constellation of Orion (the Hunter)

Jupiter and the Moon are together in the sky all evening, followed by some great winter sky sights (click to enlarge) - Credit: Stellarium/Sky-Watching

Saturday 10th December – Full Moon (also known as the Snow or Christmas Moon). There is also a total lunar eclipse visible from Eastern Europe, East Africa, Asia, Australia and the Pacific

Unfortunately from the UK the Moon will have already started leaving the umbra before moonrise (about 16:00 UTC/GMT), and the Earth’s shadow will only partially cover the Moon for another 15 minutes or so

Tuesday 13th December – Jupiter’s moon Ganymede will cast a shadow across the southern part of the giant planet this evening. It should start just before 18:00 UTC/GMT and will continue for around 2 hours

Wednesday 14th December – The annual Geminid meteor shower will peak this evening (see below for radiant guide) but as with the Leonid shower in November the Moon will be very close to the radiant.  Don’t let this discourage you though, as meteors can appear far from the radiant so you should still see some (the ZHR is expected to be anything up to 100 per hour)

Geminid Meteors are named for the constellation closest to their radiant (click to enlarge) - Credit: Stellarium/Sky-Watching

Sunday 18th December – Last quarter Moon

Wednesday 21st December – Winter Solstice is tonight (this actually happens at 05:30 UTC/GMT on 22nd). The Sun reaches its lowest point in the sky (as viewed from the Northern Hemisphere) so we get the shortest day and the longest night

Friday 23rd December – Mercury is at it’s greatest western elongation today, meaning it is visible as an early morning object until the end of the year, appearing above the southeast horizon just before 06:30 UTC/GMT with the Moon directly below it

We got this image of M31 - Andromeda in early October (click to enlarge) - Credit: Sky-Watching/A.Welbourn

Saturday 24th December – New Moon. Over the coming evenings with the Moon out of the way it’s a great time to have a look at some deep sky objects, such as nebulae and galaxies.  During December the constellation Cassiopeia is virtually overhead (as seen from Northern Europe and North America) and is an easily recognisable “W” pattern, with our closest neighbour galaxy Andromeda (see above) a beautiful object to view. See if you can find it!

Tuesday 27th December -  The waxing crescent Moon will make a nice pairing with Venus in the evening twilight sky. Visible to the south west from nightfall it could provide a good target for those with a DSLR camera (see below)

Venus is a planet we've yet to have a good look at! Image shows sky at 17:00 UTC/GMT (click to enlarge) Credit: Stellarium/Sky-Watching

Planets visible this month:

Mercury
Venus
Mars
Jupiter
Saturn
Uranus

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!

We’ve also added the “Monthly Guide” section in the menu bar to the right (where this guide will appear), so next time you visit you can find it again easily!

Guide images created with Stellarium

Archive:
Astronomy Events – November 2011
Astronomy Events – October 2011
Astronomy Events – September 2011

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Watching the stars move

September 30, 2011

by yaska77

We’ve had some good clear nights in south east UK of late. Really clear.

They’re also forecasting this warm clear weather will last over the weekend, so I plan to take advantage and will be out in the dark again tonight. Thankfully it’s now nearly the weekend, so I won’t have to drag myself through a whole day of work after staying up far too late looking at astronomical objects and taking hundreds of photos.

There will undoubtedly be more pics on the way, but for now here are a small selection of some of my favourites from earlier this week.

Sunspot 1302 clearly visible (just left of centre) from 27th September (click to enlarge) - Credit: Sky-Watching/A.Welbourn

The massive sunspot caught above is several times larger than the Earth (it’s been measured at around 62,000 miles) and has already caused stronger aurora than usual. It’s expected to grow further, increasing in size and energy emitted and has already released some powerful solar flares. Also our first ever attempt to image the Sun!

The Ring Nebula (Messier 57) is found in the constellation Lyra (click to enlarge) - Credit: Sky-Watching/A.Welbourn

M57 is located south of the bright star Vega (the brightest in the constellation Lyra), which forms the northwestern vertex of the Summer Triangle asterism (pattern of stars). We’ve snapped it before but are hoping to get a sequence of images together for stacking.

Fair bit of light pollution but not enough to ruin our look at Andromeda (click to enlarge) - Credit: Sky-Watching/A.Welbourn

If you draw a line up through the centre of the telescope eyepiece you can see a “smudged star” that is actually the spiral galaxy Andromeda. It was while taking this photo I decided I’d set up for a quick time-lapse attempt!

With the scope tracking Jupiter it provided some foreground movement as the stars marched across the sky, so in this short film you can see Andromeda, Jupiter and the Pleiades cluster! Switch to HD and fullscreen for the full effect. I really need to get out somewhere with darker skies :)

Tonight then I’m aiming to get some more shots of the Pleiades (Messier 45), and hopefully another good look at Jupiter using the CCD camera.

And yeah, I’ll be laying in tomorrow morning!

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Hubble “Rose” Image page

April 21, 2011

by yaska77

To compliment the excellent post below by tte-77 on the Hubble 21st anniversary and the Arp 273 “Rose” interacting galaxies (see here), for those of you who (like us) love these images the hubblesite.org download page has varying sizes of picture you can grab.  Want one for your desktop wallpaper?  Or just to marvel at the close up detail?

For regular sized images look here

For full-res images (up to a massive 7887 x 7994!) look here
(Just beware of the file sizes, the full-res .tiff is 119.85MB!)

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