Starship Asterisk*

Propeller Nebula SHO - Skymeca 20" full size : http://www.felopaul.com/galerie/photo44z.jpg

http://www.felopaul.com
Copyright: Didier CHAPLAIN & Laurent BOURGON

Serendipity

While is was shooting at the milky way, my tripod was not completely safe, my camera moved during the exposure, capturing this lovely star trail.

From Argentina.

By: Sergio Montúfar
https://www.flickr.com/photos/m_acubens/
http://500px.com/acubens
https://www.facebook.com/MilkyWayAddicted

IC 443 Supernova remnant in natural color narrowband palette

Copyright Keith Egger

"Untouchable beauty"

Álvaro Pérez Alonso & Jose Manuel Pérez Alonso.

http://www.perezfotografia.com

24 shot with lense 50mm 1.8. Panorama.

In high definition: https://dl.dropboxusercontent.com/u/499 ... 0mapod.jpg

Thunderstorm on Buenos Aires - Lens sigma 70-300 / F20 15" - Rafael Vazquez R. @paluzzio.

The Cocoon Nebula, IC5146, 19->22. July 2014, a 6,4hours exposure
http://www.astro-billeder.dk
Copyright: Niels V. Christensen
The Cocoon shown below as a 2LHa-RHaGB Picture.

Copyright: Raul Villaverde Fraile
IC 1396 combined RGB images and Halfa

IC 1396 Final Process por astrocentejo, en Flickr

Sprites, airglow, and the Andromeda Galaxy over Laramie, WY:
http://www.flickr.com/photos/musubk/14720945624/



Sprites and airglow:
http://www.flickr.com/photos/musubk/14720152851/

Dark Doodad Nebula with Globular Cluster NGC 4372, Namibia, July 2013
http://www.sternklar.ch/images-webpages ... Jul-13.htm
Copyright: Manuel Jung

Tree in the milkyway
http://www.ccdsky.eu
Copyright: Christoph Puetz

A shot from the Atacama Desert on July 23rd, just after the end of Astronomic Dusk with the Zodiacal Light shining up at the heart of the milky way galaxy.


cheers,
Malcolm Park

Stellar Traces above the Dolines complex of Pantokrator, Corfu


Over the crest of the mountain Pantokrator, with an area of 16 sq. km there is a sinkhole cluster which is one of the most intensely clusters of sinkhole in Europe. The complex potential created during the Ice Ages, since the emergence of the mountain from the Ocean of Tethys 18-12 million years ago. There are carbonate formations, ungroomed limestone and dolomitic limestones of Lutetian age of upper Eocene.


text: http://en.wikipedia.org/wiki/Sinkhole
http://en.wikipedia.org/wiki/Karst_topography
A sinkhole, also known as a sink-hole, sink, swallow hole, shakehole, swallet or doline, is a depression or hole in the ground caused by some form of collapse of the surface layer. Some are caused by karst processes. Sinkholes may be formed gradually or suddenly, and are found worldwide.

Natural processes
Sinkholes may capture surface drainage from running or standing water, but may also form in high and dry places in specific locations. The formation of sinkholes involves natural processes of erosion or gradual removal of slightly soluble bedrock (such as limestone) by percolating water, the collapse of a cave roof, or a lowering of the water table. Sinkholes often form through the process of suffosion. Thus, for example, groundwater may dissolve the carbonate cement holding the sandstone particles together and then carry away the lax particles, gradually forming a void. Occasionally a sinkhole may exhibit a visible opening into a cave below.
Sinkholes are common where the rock below the land surface is limestone or other carbonate rock, salt beds, or in other rocks, such as gypsum, that can be dissolved naturally by circulating ground water. Sinkholes also occur in sandstone and quartzite terrains.As the rock dissolves, spaces and caverns develop underground. These sinkholes can be dramatic, because the surface land usually stays intact until there is not enough support. Then, a sudden collapse of the land surface can occur.


Canon eos 400D mod vlip-eos filter ir/uv cut
Ef 15mm fisheye
f2.8
iso800
210X30sec

Hi all,
The image below in the result of combining the incredible Hubble infrared capture (http://heritage.stsci.edu/2013/12/index.html) with a color image obtained at the Astronomical Observatory of Bosque Alegre in Córdoba, Argentina, which was shown herein some time ago (http://asterisk.apod.com/viewtopic.php? ... no#p200290), and resulted from a combination of RGB and Ha emission.
The infrared image was (partially) applied as luminance of the RGB+Ha combination for further creating the final image shown here.
Surprisingly, this peculiar combination resembles very well the typical appearance of a horse head profile, as a well defined eye is now evident together with pronounced bangs (forelock), not so evident in the individual images.
Some friends believe that Barnard 33 resembles a cobra snake rather than a horse head. I think the current image leaves no doubt!
Thanks and regards,
Aldo

Credits:
Infrared: Hubble Heritage Team.
RGB+Ha: Aldo Mottino and Carlos Colazo (OAC, Córdoba, Argentina).
Image processing: Aldo Mottino.

Special thanks to my friend Omar Mangini for his valuable suggestions on the very final processing!

Super Moon and Mt. Hood
Copyrights: Chris Markes North America region
Copyrights: J. F. Hdez A bridge in the sky
Copyrights: Amirreza Kamkar NGC 6888
Copyrights: Yves Van den Broek NGC 6888
Copyrights: Albert Barr

Abell 66 Planetary Nebula with Halo
Copyrights: Don Goldman
Larger size: http://astrodonimaging.com/gallery/disp ... ?imgID=274 Antennae Galaxies Extreme Deep Field
Copyrights: Rolf Olsen Lives and Deaths of Sibling Stars
Image Credits: ESO/G. Beccari
An article: http://www.eso.org/public/news/eso1422/ Castle Fyllon and star trails
Copyrights: Anthony Ayiomamitis Milky Way over Göbeklitepe
Copyrights: Tunç Tezel Spotless Sun
Copyrights: Francis Audet

Chisos Mountain at night.
Copyright: César Cantú
Chisos Mountain in Big Bend National Park, TX


http://www.astrophoto.com.mx/upload/201 ... 663f47.jpg

Hubble Traces Galaxy Halo to Extreme Outskirts
Image credit: ESA/Hubble, NASA, Digitized Sky Survey, MPG/ESO
Acknowledgement: Davide de Martin
An article: http://www.spacetelescope.org/news/heic1415/ Milky Way from Caltabellotta
Copyrights: Giuseppe Parinisi Messier 27 and an airliner
Copyrights: Pascal Coste Crescent Nebula (NGC6888)
Copyrights: Francesco Di Cencio Granular Sun
Copyrights: John Brady NASA's Chandra X-ray Observatory Celebrates 15th Anniversary
Image credits: NASA/CXC/SAO
More about: http://chandra.si.edu/press/14_releases ... 72214.html Desert Lights
Copyrights: Dennis Mammana Sunset and The Moon
Copyrights: Ivana Tomková

A Flower amongst the stars

Copyright: Paul Haese

Click herefor larger resolution image

Milky Way Echoes

Trying to get some Milky Way light, but it was hard to get some because of artificial light pollution.

This is in Argentina, at Facultad de Ciencias Astronómicas y Geofisica de la Ciudad Nacional de la Plata.

Credit: Sergio Montúfar

http://500px.com/acubens
https://www.flickr.com/photos/m_acubens/
https://www.facebook.com/MilkyWayAddicted

Sagittarius Constellation
Canon T3i 50mm f/1.8 lens @ f/4.5
Copyright: Joe Renzetti

Crescent Moonrise
Copyright: György Soponyai

On Friday early morning I photgraphed the rising crescent Moon near Gyermely, a village in Northern Hungary. Both inferior planets are visible in the picture: Venus shines dimly thorugh the clouds but finding Mercury is easy.



Photo details:
2014.07.25. Gyermely, Hungary
Canon EOS 5D Mark II + Canon EF 100/2.8 macro, 1 sec, F4, ISO 250

Evening at Las Campanas Observatory. 20/Jul/2014. Full 360deg panorama, Nikkor 14-24mm f/2.8 (special thanks to Yuri Beletsky who kindly provided a lens), Canon EOS 6d, 20sec*7 frames.



Higher resolution versions:
http://nice.sai.msu.ru/~chil/photo/LCO_ ... lowres.jpg
http://nice.sai.msu.ru/~chil/photo/LCO_ ... olcorr.jpg

The Andromeda galaxy with some unique deep details.

Larger view:
http://www.pbase.com/tango33/image/156748906

Thanks for looking!

Kfir Simon

Great Nebula in Orion
Copyrights: Paul Haese
The below image is a winner of the David Malin Awards. More images can be found here: http://www.parkes.atnf.csiro.au/news_ev ... st/awards/ M64 - Black Eye Galaxy
Copyrights: Jeff Johnson Blue reflection nebula in the Rho Ophiuchi complex
Copyrights: Roberto Colombari
Full size: http://www.astrobin.com/full/109093/0/?real=&mod= Colorado Milky Way
Copyrights: J.C. Leacock Noctilucent Clouds
Copyrights: Jani Poikela Mercury and Moon Crescent
Copyrights: Juan Carlos Figueroa Perseids Through Milky Way (2012)
Copyrights: Jack Fusco C2014 E2 Jacques IC405
Copyrights: Jose F. Hdez The Sun and the sea
Copyrights: Ricardo Garavito