Recent Submissions: 2011 September 26-28

[owlice]

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Thank you!
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[mexhunter]

The Sun and Antenna
Copyright: César Cantú

[attachment=0]sun_antenna_cantu.jpg[/attachment]
http://www.astrophoto.com.mx/action.php?id=215&part=h

Also: http://www.astrophoto.com.mx/picture.ph ... category/6

[owlice]

NGC 7293: Helix Nebula
http://www.malagon.webs.com
Copyright: Carlos Malagón, Eduardo Martinez & Javier Ballesteros Bonald
[attachment=9]la foto_s.jpg[/attachment]

Moon, REMOTE, and GRAPE
Copyright: Mark McConnell
[attachment=8]DSC03757 - 2011-09-24 at 08-23-55.jpeg[/attachment]

Sunscape
Copyright: Alexander A. Lisenko
[attachment=7]exten_hromo_00000_20110924_220357_pp.jpg[/attachment]

NGC6888: Crescent Nebula
http://imageshack.us/photo/my-images/840/ngc6888.jpg/
Copyright: Pedro Miguel Santos
[attachment=6]crescent.jpg[/attachment]

Lunar Sisters
http://www.Astroarn.com
Copyright: Robert Arn
[attachment=5]Lunar Sisters red.jpg[/attachment]

NGC 7331 and Stephans Quintet
http://www.martinpughastrophotography.i ... _50PCT.jpg
Copyright: Martin Pugh
[attachment=4]NGC 7331_pugh.jpg[/attachment]

M33: Triangulum Galaxy
http://www.deep-sky-images.de/albums/us ... Bklein.jpg
Copyright: Markus Noller
[attachment=3]M33LRGB.jpg[/attachment]

Sunspot 1302
http://www.luisargerich.com
Copyright: Luis Argerich
[attachment=2]IMG_3375.jpg[/attachment]

Monster Sunspot #1302 Hydrogen Alpha
http://www.galacticimages.com
Copyright: John Chumack
[attachment=1]FullSun092511_ChumackHRweb.jpg[/attachment]

PK36 -1.1
http://www.nebula1.com.ar
Copyright: Omar Mangini
[attachment=0]pk36-1.1-1h47m.jpg[/attachment]

An Arc Sculpted by Gravity
http://www.spacetelescope.org/images/potw1139a/
Credit: NASA/ESA/Hubble
http://asterisk.apod.com/viewtopic.php?f=29&t=25396

Click to view full size image

[Ann]

There are two dramatic Sun images here, that really bring out the brightness associated with sunspots, which usually aren't seen well in Sun images. Thanks, César Cantú - you grace us with your images so frequently that I shouldn't have to write your last name - and Alexander A. Lisenko!

Robert Arn, I completely love your Lunar Sisters image! It practically knocked me out! Thanks!!!

And Martin Pugh, that's really an unusually delightful image of NGC 7337, the Deer Lick Group and Stephan's Quintet. First of all, it's unusual to capture all these galaxies in one image. By doing so, you remind us of the fact that that the true members of Stephan's Quintet are probably at more or less the same distance from us as the galaxies of the Deer Lick Group. Also, you make us see the fifth true member of Stephan's Quintet so clearly: it's the small spiral or ring galaxy to the upper right of the other members. (Although, fascinatingly, it does look as if NGC 7320, the nearby blue interloper of the group, has a tidal tail stretching from itself toward that small distant ring galaxy to the upper right of it!)

It's a great picture in any case!

Ann

[jesperg]

Strong Aurora september 26th. - 27th. 2011.
Bright colors.

---

Larger version (1400 pixels) http://astrophoto.dk/gallery/displayimage.php?pid=1038
Larger version (1800 pixels) http://astrophoto.dk/gallery/displayimage.php?pid=1032
Cropped version http://astrophoto.dk/gallery/displayimage.php?pid=1033
© Jesper Grønne, Denmark.
http://www.groenne.eu
http://www.astrophoto.dk

[Ann]

Welcome back here, Jesper Grønne!

As for aurorae, I personally think it would be very nice to see an aurora in real life. But I'm so impressed that you managed to capture this aurora from Denmark. Or did you photograph it from somewhere further north?

Since I couldn't enlarge the image by clicking on it, I went to your homepage instead. There were some gorgeous pictures there, and I fell particularly in love with your rainbow image. The colors of the rainbow were so bright, and the rainbow was so firmly rooted in the ground, that I wanted to get myself a shovel and go to that place where your rainbow met the ground and start digging! Surely there would be a magnificent treasure hidden there!

Ann

[lvanvlee]

NGC 7635 - The Bubble Nebula
http://lvvastro.com/wordpress/
Copyright: Larry Van Vleet
[attachment=0]bubble_vleet.jpg[/attachment]
http://www.lvvastro.com/lvvastro_images ... or_Sml.jpg

[jesperg]

Welcome back here, Jesper Grønne!

As for aurorae, I personally think it would be very nice to see an aurora in real life. But I'm so impressed that you managed to capture this aurora from Denmark. Or did you photograph it from somewhere further north?

Since I couldn't enlarge the image by clicking on it, I went to your homepage instead. There were some gorgeous pictures there, and I fell particularly in love with your rainbow image. The colors of the rainbow were so bright, and the rainbow was so firmly rooted in the ground, that I wanted to get myself a shovel and go to that place where your rainbow met the ground and start digging! Surely there would be a magnificent treasure hidden there!

Ann

Hi Ann.
Thanks for your kind comments
Almost all my sky photos are taken at home, in the central part of Jutland, the danish highland (100 meters above sea-level )
These kinds of auroras are very rare here, so I got to bed a little late.

[ManfredSchwarz]

Reflection Nebula NGC7129 in Cepheus
Copyright by Manfred Schwarz Austria
[attachment=0]ngc7129_schwarz.jpg[/attachment]
http://www.astrophoto.at/nebulae/NGC712 ... 9_100p.jpg
http://www.astrophoto.at/nebulae/NGC712 ... 110925.htm

[marcelozurita]

Milk Way over Pedra da Boca
http://www.flickr.com/photos/mzurita/
Copyright: Marcelo Zurita

Click to view full size image

Milk Way over Pedra da Boca (Mouth Stone) at Araruna, Northeast of Brazil.
Other sizes in: http://www.flickr.com/photos/mzurita/61 ... otostream/

[RobertArn]

Robert Arn, I completely love your Lunar Sisters image! It practically knocked me out! Thanks!!!

Thanks Ann! This was a fun image to create.
Robert

[Drewster]

Io Rising over Jupiter Sept 27 2011
http://www.ancientstarlight.com
Copyright: Drew Sullivan

Click to view full size image

[Drewster]

Ten Billion Light Years
http://www.ancientstarlight.com
Copyright: Drew Sullivan

Click to view full size image

Just below the blue nebula, Jones 1, lies J233604.7+302355, a quasar with z = 2.094 corresponding to a distance of about 10.2 billion light years.

The fact that J233604.7+302355 is so easily seen is an indication of its incredible intrinsic brightness.

[Paul Haese]

My image of Saturn that came second in the solar system section of the Astronomy Photographer of the Year 2011 held by the Royal Observatory Greenwich.

Copyright: Paul Haese

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Full size image seen here

[mexhunter]

There are two dramatic Sun images here, that really bring out the brightness associated with sunspots, which usually aren't seen well in Sun images. Thanks, César Cantú - you grace us with your images so frequently that I shouldn't have to write your last name - and Alexander A. Lisenko!...
Ann

Thank you very much for your comments Ann.
Greetings from México.
César

[laurentlacote]

Hello,

This is an image of the bubble nebulae, a zoom in, taken with a Meade 12" ACF, 11h40 exposure, in SHO.

Click to view full size image

The full Image is here

I Hope it will please you.

Laurent LACOTE (Bordeaux - France)

[luigi]

Io rising is really great!

[BERNIER Francois]

Hello ,

here is a picture of the triangulum Galaxy Messier 33 taken in south of France

Click to view full size image

Full image here :http://francois.bernier.fr.free.fr/phot ... ANCOIS.jpg

and an annoted version

Click to view full size image

Full image here :http://francois.bernier.fr.free.fr/phot ... ANCOIS.jpg

You can find more details here : http://francois.bernier.fr.free.fr/news.htm

I hope you'll like it

BERNIER François (FRANCE)

[laurentlacote]

Io rising is really great!

Thank's luigi

[Ann]

Laurant Lacote, is Io rising over Jupiter really your image?

You have indded produced ab image of the Bubble Nebula, and it is a very fine image, too. Thanks for posting it here!

I also want to thank your compatriot, BERNIER François, for his fine M33 image. I particularly like the annotated version!

Drew Sullivan, I think the Io rising image is yours. I agree with luigi, it's a truly great image! So striking!

But I like your J233604.7+302355 Ten Billion Years quasar image just as much. It's so fantastic that we can clearly discern a quasar from ten billion years ago, and it looks no different to us than millions of other little lights in the sky. It gives me a sort of pleasant sense of vertigo to realize that similar-looking points of light emanate from so vastly different light sources at such giddeningly different distances from us. A slightly similar experience, though "the other way round", is provided when you look at David Malin's image of the very nearest known star, Proxima Centauri, here. Isn't it fascinating to contemplate the fact that all other light sources in David Malin's image are brighter than Proxima Centauri and farther away?

Ann

[starstruck]

Laurent Lacote, your image does indeed please. It conveys such depth!

Larry Van Vleet, your image also. It puts me in mind of an eye in the sky.

Thank you both for sharing.

[Ann]

Larry van Vleet, I absolutely agree with starstruck. That's a great image of yours, wonderfully deep and sharp.

I also love Manfred Schwarz' image of NGC 7129. It'sa very fine image, and the object, NGC 7129, is truly fascinating. It is mainly a reflection nebula, almost certainly lit up by stars of A and late class B stars. (I don't have my software here, so I can't check it up.) Anyway, stars of class A and late class B produce a lot of blue light, and when they are surrounded by dust, they can produce wonderful reflection nebulae. The best example of a reflection nebula around stars of class A or late class B is of course the Pleaides nebula.

However, the bright blue stars of the Pleaides are somewhat evolved. They are not newborn at all, but instead about a hundred million years old, and the nebula they are immersed in is not the nebula that gave birth to them. Instead, the dust cloud that is lit up by the Pleiades is a "chance encounter" in space! The cluster and the nebula just blundered into one another!

By contrast, the reflection nebula of NGC 7129 really is the nebula that gave birth to the stars. Therefore the stars are very young, probably only ten million years old or even younger. But it seems certain that the brightest blue stars are fully formed. My guess is that these blue stars may contain 2-3 solar masses each and thus be equivalents of Sirius and Vega.

Oh, but a truly fascinating aspect of this star forming region is the small red knots and arcs in the image. These little red structures testify so beautifully to the presence of low-mass star formation. They are caused by jets from low-mass stars that are in the process of forming. During this process, when unborn stars "put on meat" (or mass), they produce jets which light up the surrounding gas and makes it glow red from hydrogen emission. Later, when these low-mass stars are fully formed and have "settled down", they will not emit jets any more, and they will not ionize any hydrogen in their surroundings.

So these red structures are made of glowing hydrogen, ionized by the jets of unborn low-mass stars. How do we know these stars are going to be low of mass? We can know it because the red features are so small, and so completely overshadowed by the bright reflection nebula of stars that are probably at least twice as massive as the Sun, but which are still quite unable to ionize the hydrogen in their surroundings. And that's because they are fully formed and have stopped emitting jets.

If the stars that emit the jets that light up small red emission nebulae had been high-mass stars instead, the entire region would have been aglow with bright red emission nebulosity. But that's the difference between NGC 7129 and the Orion Nebula, for example: The stars that are forming in NGC 7129 are so small. So light-weight. The unborn stars of NGC 7129 can be called baby stars because of their youth, but they are also destined to remain little runts forever.

When I see that little red arc at about four o'clock in Manfred Schwarz' image, I want to say "Aaww! How cute! Cotchie-cotchie-coo, little baby star, you!"

Ann

And I just got myself 1945 posts. War is over.

[laurentlacote]

Thank's a lot Ann and Starstruck !

Laurent.

[Mark McConnell]

Some may be wondering about the submission "Moon, REMOTE and GRAPE"...

This picture was taken at sunrise on September 24 from NASA's Columbia Scientific Balloon Facility in Ft. Sumner, NM. There had been two balloon launches from that facility the previous day. The first was our experiment (from the University of New Hampshire) called GRAPE - Gamma RAy Polarimeter Experiment. The second was an atmospheric experiment package from JPL called REMOTE. That morning, both balloons were visible just before sunrise. At the time, they were both about 150 miles away and at an altitude of about 120,000 feet. Each balloon was about 350 feet in diameter and well-lit by the rising sun. In this view, the two balloons, REMOTE at the lower left and GRAPE at the lower right, formed a nice triangle with the waning crescent Moon. At the time that this picture was taken, GRAPE was measuring gamma radiation from the Crab Pulsar.

Mark McConnell

[StefanoDeRosa]

Io rising is really great!

I agree and say "WOW!"