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Land of the Yankee Fork
http://www.ericbenedettiphotography.com
Copyright: Eric Benedetti This was shot Saturday night during the incredible aurora display, taken on a hillside above the Yankee Fork Valley in central Idaho. The airglow was very intense throughout the night, the most intense I've ever seen. Taken with a Nikon D800E and Sigma Art 50mm lens on a Sky Watcher Star Adventurer tracking mount, overall this is 38 images stitched together, it took nearly 2 hours to acquire all the shots. First time in my life I've seen the Northern Lights, it did not disappoint, definitely a night I will never forget.

Full size image can be viewed here:
https://flic.kr/p/V3HYqu

The crescent and the Soap Bubble Nebulae
http://www.astropixels.fr
Copyright: Nicolas Kizilian The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth discovered in 1792 formed by the fast stellar wind from the Wolf-Rayet star.
You can also see the Soap Bubble Nebula, a planetary nebula discovered by amateur astronomer Dave Jurasevich in June 19, 2007. : http://i.imgur.com/8sErFwh.jpg

A bicolor Ha/OIII image made last week.
9 hours of data (Ha = 13 x 15mn / OIII = 23x15mn) with a William Optics ZenithStar 66 refractor, a Moravian G2-8300 CCD and Astrodon Ha & OIII 5nm filters.

Barnard 347
4 hours Ha, 200/800 mm

The essense of the Milky Way
http://astrophotographysirius.com/
Copyright: Lluís Romero Ventura

Theta Ophiuchi Dust Field DSS-II Combo by Transient Astronomer, on Flickr

Image Credit and Copyright DSS-II(http://archive.eso.org/dss/dss) / Tom Masterson

[img][/img]

• Image captured with 228mm F9 refractor and Daystar Quantum PE .5 angstrom filter with ZWO asi174mm Video ccd camera.

M 13 Globular Cluster

http://www.celestialobjects.net/m13.html

IC 434/B33/NGC 2023 The Horsehead Nebula and Flame Nebula by Patrick Gilliland, on Flickr
©Gilliland/Mercieca

Starry Night on an Oregon Lake by Marsha Kirschbaum, on Flickr

Messier 08 the Lagoon Nebula
http://www.astronight.com
Copyright: John Buonomo Captured at the Dan Zowada Memorial Observatory May 27-28-29 2017
Full Size View here
http://jbsoundnvision.com/apod/Messier08.jpg

Eagle m16 In Halpha
https://www.michaelastro.com/m16halpha

Michael Tzukran

The Dark Tower Nebula by Terry Robison, on Flickr

This ominous structure is the result of a perfect mixing of ingredients that have resulted in dark looking cavities, stellar birth, all against an extremely dense star field. The structure is almost 40 light years across. The dark areas are made from fine grains of interstellar dust. This dust and molecular gas are collapsing and forming stars within the dark nebula. The resulting silhouette is striking when viewed against the dense star field near the constellation of Scorpius.

I like the reflection nebula located near the top cone of the tower. They remind me of the Pleiades Nebula with that lovely blue light reflecting off the dust around the bright stars. There is a lot going on within the image. There are areas of stellar birth within the dark nebula, hot bright young stars (blue stars), loads of hydrogen gas throughout (the red areas, and large arc or crescent on the right side), a colourful dense star field eclipsed by find dust, dark nebula, reflective nebula, and emission nebula.

Data was captured 2017 from Central Victoria, Australia. The instruments used:

Telescope: 10 inch RCOS, F9 Ritchey-Chrétien configuration
Mount: Astro-Physics AP-900 Mount
Camera: SBIG STL-11000 CCD (-20 C)
Image scale: 0.8"/pix
Processing: CCDStack and Photoshop
Lum 7.5 hours / RGB binned 45 min / Ha 2.5 hours

Terry

A few new images:

For larger images and full imaging details - please see:
http://www.pbase.com/tango33/new_images

Thank you for looking!

Kfir Simon

The Summer sky mosaic:


The Eta Carina nebula:


NGC 6188 RGB :


NGC 6188 Hubble color mapping:


R corrona Australis region:

The fascinating tomography of noctilucent clouds

Credits: Adrien Mauduit
https://www.adphotography-online.com

Explanation:
Noctilucent cloud season is over us again in Denmark. These night-shining clouds can now be witnessed at high latitudes after sunset and before sunrise. They give extraordinary displays when shot wide-angle, but I recently discovered that there is way more to those strange clouds than the eye can see. When shot at 500mm, they develop very fast, but they display some beautiful smooth or rugged edges, troughs and mounts, whirlpool, twirls or waves, that most of the time go unnoticed. It is fascinating to see them moving this close and to think that they are made of so tiny ice particles. It's like they hardly obey the laws of physics up there in the mesosphere. The most stunning fact is when you realize that they are actually transparent, like a ghostly veil on top of the stars.
Depending on how you look at it, this phenomenon reminds me of different things. First imagine you are at ski or on the snow. Well the top layers are always kind of blown away by the wind because they are small and thin snow flakes. When so, and if you are looking at them directly into the sunlight, they also make out the same wave and whirl patterns, only NLC are way smoother due to the thinness of its particles. Secondly it reminds me of the way some vapors or gases behave (ex: dry-ice flowing on a flat surface, or over-saturated alcohol vapors in a cloud chamber or even smoke), that is if you can remember your fluid mechanics class. Way up there, the currents seem to be very active as the atmospheric pressure is be considerably low and the teleconnections rampant, and on some of the images taken in Denmark, it really forms a blizzard wave, or actually more like an ice-tsunami wave!

The fascinating tomography of noctilucent clouds

Credits: Adrien Mauduit
https://www.adphotography-online.com

Explanation:
Noctilucent cloud season is over us again in Denmark. These night-shining clouds can now be witnessed at high latitudes after sunset and before sunrise. They give extraordinary displays when shot wide-angle, but I recently discovered that there is way more to those strange clouds than the eye can see. When shot at 500mm, they develop very fast, but they display some beautiful smooth or rugged edges, troughs and mounts, whirlpool, twirls or waves, that most of the time go unnoticed. It is fascinating to see them moving this close and to think that they are made of so tiny ice particles. It's like they hardly obey the laws of physics up there in the mesosphere. The most stunning fact is when you realize that they are actually transparent, like a ghostly veil on top of the stars.
Depending on how you look at it, this phenomenon reminds me of different things. First imagine you are at ski or on the snow. Well the top layers are always kind of blown away by the wind because they are small and thin snow flakes. When so, and if you are looking at them directly into the sunlight, they also make out the same wave and whirl patterns, only NLC are way smoother due to the thinness of its particles. Secondly it reminds me of the way some vapors or gases behave (ex: dry-ice flowing on a flat surface, or over-saturated alcohol vapors in a cloud chamber or even smoke), that is if you can remember your fluid mechanics class. Way up there, the currents seem to be very active as the atmospheric pressure is be considerably low and the teleconnections rampant, and on some of the images taken in Denmark, it really forms a blizzard wave, or actually more like an ice-tsunami wave!

M13

http://astrofotografie-hess.heimat.eu
Copyright: Rochus Hess Full size image can be viewed here:
http://astrofotografie-hess.heimat.eu/g ... ky/m13.htm

Telescope: 8 Zoll Newtonian f4
Mount: G53F Gemini
Camera: Moravian G2 8300FW
Processing: PixInsight and Photoshop
RGB 8 x 240sec. / 1,5 hour

IC 1396 SHO Palette
Image recorded from Brumano (BG) ) Italy

https://www.flickr.com/photos/148843148 ... en-public/

Copyright: Efrem Frigeni

In Tarantula´s Clutches

Carina

Clouds of Ophiuchi

Gabriela Mistral Nebula

The omega espleedor

Copyright: Mark Hanson

Here is an image of M27 The Dumbbell Nebula that I added some more data to this past year using a Planwave 24"

Its a 7 filter image LRGB/HA/O3/S2 With about 45hours of data.
Description and Higher rez Image: https://www.hansonastronomy.com/m27-the-dumbbell-nebula

Thanks,

Mark Hanson

Copyright: Mark Hanson

Here is a new image of M89, it's one of the deepest images to date of this rarely imaged galaxy, Some of the outer shell may be newly discovered. There are so many galaxies in this image. Being a boring elliptical is probably why no one seems to image it, it's far from boring!

Telescope: Planewave 17" f6.7 on a Planewave HD Mount Camera: SBIG 16803

Location: Stellar Winds Observatory at DSNM, Animas, New Mexico

Exposure: Luminance 1000min 240 of each RGB
Here is a description and higher resolution image: https://www.hansonastronomy.com/m89-eliptical-galaxy

Thank you,

Mark Hanson