Submissions: 2017 August

bystander · Post by **bystander** » Tue Aug 01, 2017 4:40 pm

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markh@tds.net · Post by **markh@tds.net** » Tue Aug 01, 2017 4:58 pm

Copyright: Mark Hanson, S. Mazlin, W. Keller, R. Parker, T. Tse, P. Proulx, D. Plesko; SSRO/PROMPT/CTIO

NGC 6726 in Corona Australis

This beautiful star forming region in the constellation Corona Australis has so much to offer, with many outstanding nebula and unusual objects. One of the more dynamic and colorful areas in the southern sky.
It features NGC 2726-27 a blue reflection nebula which are clouds of interstellar dust lit up by the bright nearby stars and IC 4812 is another.
NGC 6729 is the diamond shaped object which is an Emission/Reflection nebula object that is also a variable nebula.
Bernes 157 and SL 41 are areas called Dark Nebula interstellar clouds that are dense enough to obscure the light from behind.
Herbig-Haro or HH objects are small patches of nebulosity linked to new born stars. Stars that are or have ejected gas and that gas collides with nearby clouds of gas at enormous speeds. There are many of these objects in this image.

Taken at SSRO in CTIO, Chile
Telescope: 16" RCOS, FLI 16803, Planewave 200HR CTIO Chile.
21 Hours Luminance, 14.5 Red, 13.5 Green, 13.5 Blue
62 Hours Total

Larger version and annotated image can be see here: https://www.hansonastronomy.com/ngc-6726

Thanks for looking,

Mark Hanson

c3dr1c · Post by **c3dr1c** » Tue Aug 01, 2017 5:45 pm

Hello

The “iTelescope – Portugal” group is a portuguese group made up of several amateur astronomers, who contribute to the acquisition of data through a remote service, provided by an observatory located in Siding Spring, Australia. Using this observatory, it is possible to photograph astronomical objects that are only visible in the southern hemisphere. The data obtained are distributed by the elements of the group for further processing. The photos published here result from my post-processing of the acquired data.

http://www.itelescope.net/

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M83 - Southern Pinwheel Galaxy

M83 - Southern Pinwheel Galaxy by Cédric Pereira, no Flickr

Acquisiton: iTelescope-Portugal
Processing: Cédric Pereira - http://www.cedricpereira.space

Telescope: Planewave 17'' CDK
Sensor: FLI Proline 16803
Mount: Planewave Ascesion 200HR
Frames: Ha: 5x600”; Lum: 5x600”; RGB: 6x300”
--------------------------------------------
NGC6357 - The Lobster Nebula

NGC6357 - The Lobster Nebula by Cédric Pereira, no Flickr

Acquisiton: iTelescope-Portugal
Processing: Cédric Pereira - http://www.cedricpereira.space

Telescope: Takahashi FSQ 106ED
Sensor: FLI Microline 16803
Mount: Paramount ME
Frames: Ha: 6x600”; SII: 6x600”; OIII: 6x600”
--------------------------------------------
NGC5128 - Centaurus A

NGC5128 - Centaurus A by Cédric Pereira, no Flickr

Acquisiton: iTelescope-Portugal
Processing: Cédric Pereira - http://www.cedricpereira.space

Telescope: Planewave 17'' CDK
Sensor: FLI Proline 16803
Mount: Planewave Ascesion 200HR
Frames: Lum: 11x600”; R: 3x300"; G: 3x300"; B: 3x300”
--------------------------------------------
NGC3372 - Carina Nebula

NGC3372 - Carina Nebula by Cédric Pereira, no Flickr

Acquisiton: iTelescope-Portugal
Processing: Cédric Pereira - http://www.cedricpereira.space

Telescope: Takahashi FSQ 106ED
Sensor: FLI Microline 16803
Mount: Paramount ME
Frames: Ha: 8x600”; Lum: 6x600”; R: 6x300"; G: 3x300"; B: 3x300”
--------------------------------------------
NGC346 - @ Small Magellanic Cloud

NGC346 - @ Small Magellanic Cloud by Cédric Pereira, no Flickr

Acquisiton: iTelescope-Portugal
Processing: Cédric Pereira - http://www.cedricpereira.space

Telescope: Planewave 17'' CDK
Sensor: FLI Proline 16803
Mount: Planewave Ascesion 200HR
Frames: Ha: 6x600”; OIII: 6x600”

Sandgirl · Post by **Sandgirl** » Tue Aug 01, 2017 7:10 pm

Near and Far
Copyrights: Stephen Voss

M12
Copyrights: Madhup Rathi

Sunspots
Copyrights: Syd Bates

The Moon at daytime
Copyrights: Jhon Harold

Lightening beam
Copyrights: Alicia MCCollum

Seagull & Sunspot AR2665
Copyrights: Ian Griffin

AR2665
Copyrights: David Searles

Fireflies and the summer Milky Way
Copyrights: Jeff Dai

NGC 6188
Copyrights: Lucas Becroft

Lunar fogbow and Milky Way
Copyrights: James Li

Pinching The North Star - Syracuse - Unesco World Heritage Site
Copyrights: Dario Giannobile

Mammatus over Central Greece
Copyrights: Alexandros Maragos

Million years of amazing
Copyrights: Hower Ji

Mosaic of the Wall and details
Copyrights: Juan I. Jimenez

The Elephant's Trunk Nebula -IC 1396
Copyrights: Eric Coles

Milky Way @ Acadia National Park, Maine July 4th 2017
Copyrights: Joseph Guilbeau

Paranal (VLT) Observatory with Orion, Rosetta and Barnard's Loop and Sirius
Copyrights: Carlos Eduardo Fairbairn

The Puszta at Night
Copyrights: György Soponyai

Light Scattering in Moonrise over US Capitol
Copyrights: Christopher Becke

Solar Halo, Contrails and Shadow of Contrails
Copyrights: Vijay Kapoor

Night sky over chestnut trunk in South Corsica
Copyrights: Patrick Nicolaï

ISS over Acadia National Park
Copyrights: Ray Yeager

Galactic centre from La Palma, Canary Islands
Copyrights: Ondrej Kralik

Milky Way and faint Aurora Borealis from Grand ballon" in Alsace country, France
Copyrights: Arnaud Besancon

Sandgirl · Post by **Sandgirl** » Tue Aug 01, 2017 8:13 pm

Mammatus over Greece
Copyrights: Alexandros Maragos

The Milky Way over West Greece
Copyrights: Alexandros Maragos

Climbing Moon
Copyrights: Giorgia Hofer

Milky Way over Volcán San Pedro
Copyrights: Sergio Montúfar

Cosmic meeting
Copyrights: Sergio Montúfar

Space Lights...
Copyrights: Fabrizio Guerrini

Chilean Volcanic Landscape with Milky Way's southern perspective, accompanied by Gum Nebula
Copyrights: Carlos Eduardo Fairbairn

Perseids fireball and reflection
Copyrights: Haitong Yu

1m telescope surrounded by stars
Copyrights: Kevin Baillie

Full rotation of Earth
Copyrights: Ferenc Szémár

Centaurus cluster
Copyrights: Delberson Tiago

Pelican Nebula
Copyrights: Steve Milne

Milky Way from Melgar de Arriba, Spain
Copyrights: José Antonio Martínez

'Cosmic Horseshoe' Einstein Ring
Copyrights: Rolf Wahl Olsen

Swan Constellation
Copyrights: Edoardo Dusina

Cloak and Wizard
Copyrights: Bryan Cogdell

Moon Green Flash
Copyrights: Gerhard Hüdepohl

Technological era with Sun
Copyrights: Oscsar Jhon Harold Acosta Méndez

M24 Cloud
Copyrights: Leonardo Orazi

M104
Copyrights: Luciano Gomes

sydney · Post by **sydney** » Tue Aug 01, 2017 9:22 pm

M16
Ha/OIII/RGB
Larger images and info:
http://www.astrobin.com/305603/?nc=user

Nick Pavelchak
Altamont, NY

shtutik · Post by **shtutik** » Wed Aug 02, 2017 11:11 am

Morning sky of Atacama.

Author's site: http://www.astroadventures.ru/
Copyright: Yuri Zvezdny

Thirteen · Post by **Thirteen** » Thu Aug 03, 2017 4:48 am

Hello all,
One of my favorites ....

Attached is my view of the Ghost Nebula, a beautiful and intricate dark nebula in the constellation Cepheus.

VdB 141 - The Ghost Nebula
Copyright: Jason Guenzel

Higher resolution image with capture details can be seen in the following link....

Enjoy!!

vanamonde81 · Post by **vanamonde81** » Thu Aug 03, 2017 10:00 am

Moonset in 15 Minutes
copyright: György Soponyai

Europe is recently suffering the extreme heat coming from the South. Besides warm air the winds have blown a lot of Saharan dust that makes the moonsets very colorful.

This is some kind of experimental photo as using long exposure times I have always been preferring star stacking instead of one long shot.
With a telephoto lens the 1 - 1.5 second gaps between the frames would have been causing ugly discontinuity. On the third night of the project I finally figured out the perfect camera settings and this photo is the result:

Photo details:
2017.08.03. Dunakeszi, Hungary
Canon EOS 5D Mark II + Canon EF 200/2.8L
900sec, F13, ISO 50

remidone · Post by **remidone** » Thu Aug 03, 2017 10:32 am

NGC 7635 Bubble Nebula Narrowband
Copyright: Luca Moretti

: Click to view full size image

More resolution here

Petr H. · Post by **Petr H.** » Thu Aug 03, 2017 8:01 pm

Perseids 2016 over Slovakia
Copyright: Petr Horálek
More and image in higher res: http://www.astronom.cz/horalek/?p=2516

: Click to view full size image

Petr H. · Post by **Petr H.** » Thu Aug 03, 2017 8:02 pm

Cloudy Total solar eclipse 2016
Copyright: Petr Horálek
More and image in higher res: http://www.astronom.cz/horalek/?p=2316

: Click to view full size image

Petr H. · Post by **Petr H.** » Thu Aug 03, 2017 8:06 pm

The night sky in 5000m altitude
Copyright: Petr Horálek http://www.astronom.cz/horalek/?page_id=20 / ESO http://www.eso.org

Image in higher res: http://www.eso.org/public/images/2016-0 ... zod-cc-eq/
Enjoy also 360deg virtual view http://www.eso.org/public/images/2016-0 ... cc-eq-ext/

: Click to view full size image

philto · Post by **philto** » Thu Aug 03, 2017 10:16 pm

Solar sunset from France 3rd of August
200/500 Nikon F/8
Regards
Image Philippe TOSI

: Click to view full size image

Green ray from Pic du Midi observatory
200/500 Nikon F/22
Regards
Image Philippe TOSI

: Click to view full size image

GerminianiMaicon · Post by **GerminianiMaicon** » Thu Aug 03, 2017 10:22 pm

: Click to view full size image

GerminianiMaicon · Post by **GerminianiMaicon** » Thu Aug 03, 2017 10:22 pm

: Click to view full size image

GerminianiMaicon · Post by **GerminianiMaicon** » Thu Aug 03, 2017 10:23 pm

: Click to view full size image

GerminianiMaicon · Post by **GerminianiMaicon** » Thu Aug 03, 2017 10:24 pm

: Click to view full size image

zonalunar · Post by **zonalunar** » Fri Aug 04, 2017 9:12 am

M16: The Eagle Nebula

Copyright: Alfonso Carreño (Observatorio Zonalunar)

Full size image can be viewed here

Petr H. · Post by **Petr H.** » Fri Aug 04, 2017 10:04 am

Wonderful diamond ring of 2013 eclipse
Copyright: Petr Horálek, Jan Sládeček, Miloslav Druckmüller
More info and images: http://www.zam.fme.vutbr.cz/~druck/ecli ... 0-info.htm

http://www.astronom.cz/horalek/wp-conte ... iamond.png

donwaid · Post by **donwaid** » Fri Aug 04, 2017 9:33 pm

The Veil Nebula - Hubble Palette Colors

: Click to view full size image

Imaging Information and Object Description:
http://www.waid-observatory.com/Veil-2017-07-26-NB.html
(Click on the displayed images to progress to higher resolution.)

High resolution image (1800 X 1202) link:
http://www.waid-observatory.com/images/ ... B-1800.jpg

Copyright: Donald Waid and Preston Starr

donwaid · Post by **donwaid** » Fri Aug 04, 2017 10:24 pm

The Veil Nebula - Bi-Color Ha/OIII/OIII

: Click to view full size image

Imaging Information and Object Description:
http://www.waid-observatory.com/Veil-20 ... 6-HOO.html
(Click on the displayed images to progress to higher resolutions.)

High resolution image (1500 X 993):
http://www.waid-observatory.com/images/ ... O-1500.jpg

Copyright: Donald Waid and Preston Starr

keesscherer · Post by **keesscherer** » Sat Aug 05, 2017 12:10 pm

The Red, Orange and Blue of the Cave Nebula region, a 46 hr HaRGB image from Portugal.

The Red, Orange and Blue of the Cave Nebula region. by Kees Scherer, on Flickr

The Cave Nebula (Sh2-155) is a Hydrogen cloud (in the center) with a brighter rim and a star forming region in the large molecular cloud known as Cepheus B. The stars of the Cepheus OB3 association are less than 100,000 years old. Low mass star formation is occurring at a high rate within the dust clouds of Sh2-155. The blue reflection nebula (lower left) is VDB-155.
Just south (in this image to the left) of the Cave nebula we can see some strange orange Nebulosity, the home of some Herbig Haro Objects. HH168, HH169 and HH174 are locations, where a star is born, still surrounded by dust and nebulosity, already shaped into a rotating disk. This material blocks the light of the new-born stars and the pressure can be released only at the disk poles and Jets of material are escaping from their northern and southern poles.

RGB: 72,71,70 x 600 sec bin 1x1: 22,23,24,25,26,27,28,29,30 July 2017
Ha: 63x 600 sec bin 1x1: 31 Jul, 2,3,4 aug 2017

Total integration time: 46 hrs.
QHY16200 CCD camera/ Esprit 100 f5.5/ 10 Micron GM2000 HPS
Knight Observatory, Tomar