Submissions: 2013 April

See new, spectacular, or mysterious sky images.
Bob Andersson
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Soul Nebula (incl Lan 272)

Post by Bob Andersson » Mon Apr 08, 2013 2:31 pm

The Soul Nebula.

http://andersson-design.s3.amazonaws.co ... a_2048.jpg
[attachment=0]soulbob.jpg[/attachment]

The stars are in full color for this one. The image also includes Lan 272, a 90,000° white dwarf, the faint and very blue star below and to the left of IC 1871. North is up.

Shooting info: Tec 140 plus FLI ML16803. 5 x 200 seconds R, G and B plus 8 x 1500 seconds Ha.

Bob.
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ftherrmann
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Posts: 141
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Re: Submissions: 2013 April

Post by ftherrmann » Mon Apr 08, 2013 4:07 pm

Medusa
http://fth.bounceme.net/
Copyright: Fred Herrmann, Terry Hancock, All rights reserved.

Efrain Morales
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AKA: Jaicoa
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Saturn, Moon Tethys, Dione

Post by Efrain Morales » Mon Apr 08, 2013 7:13 pm

Saturn on April 6th, 04:49ut. Also in view are two moons (top) Tethys (L) and Dione (R). A slight brighteness on the rings (Seeliger Effect) and the shadow is going behind the disc as it approaches opposition within weeks from now.

Rothkko
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Re: Submissions: 2013 April

Post by Rothkko » Mon Apr 08, 2013 10:43 pm

Jupiter Ammon (reproduction on-site in the Municipal Forum, clypeus original in the National Museum of Roman Art of Merida), and Jupiter.
Mérida. Spain. 2013-04-08
Mérida. Spain. 2013-04-08
Last edited by Rothkko on Tue Apr 09, 2013 5:58 pm, edited 1 time in total.

wilsondm
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Re: Submissions: 2013 April

Post by wilsondm » Mon Apr 08, 2013 11:21 pm

M17, The Omega Nebula in Sagittarius
http://www.robgendlerastropics.com/M17-HST-Subaru.html
Copyright: Robert Gendler, Subaru Telescope (NAOJ), Hubble Legacy Archive Aurora
Copyright: Keane Beamish
[attachment=0]_MG_2569.jpg[/attachment]
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IanP
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Location: Perth, Western Australia
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Omega Centauri, 2013 April

Post by IanP » Tue Apr 09, 2013 11:18 am

Omega Centauri 2013

Cam: DSLR 60Da
Scope: CPC925 (hd-wedge) +F6.3 reducer

Higher res @
http://westcoastpics23.blogspot.com.au/
Attachments
2013-04-07 NGC5139 Ep.2 crop2_res6-200px_lab1.jpg

tango33
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Posts: 195
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Re: Submissions: 2013 April

Post by tango33 » Tue Apr 09, 2013 4:58 pm

NGC 6590 and NGC 6589 in Sagittarius.
A mix of emission, reflection and dark nebulae.

Larger version:
http://www.pbase.com/image/149600158

Thanks for looking!

Kfir Simon

stringdom42
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Re: Submissions: 2013 April

Post by stringdom42 » Tue Apr 09, 2013 6:48 pm

Up close and personal with Titan's haze
http://www.flickr.com/photos/valerieklavans/8634118211/
Copyright: NASA / JPL / SSI / composite by Val Klavans

ViliMax
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Re: Submissions: 2013 April

Post by ViliMax » Tue Apr 09, 2013 10:03 pm

M65, M66 and the supernova in M65 / SN 2013am in Leo

http://www.elateobservatory.com
http://www.irida-observatory.org

Copyright: Velimir Popov

M65 and M66 are a part from The Leo Triplet, a well known conspicuous grouping of galaxies (also known as the M66 Group). This is a small group of galaxies about 35 million light-years away in the constellation Leo.

SN 2013am - Type II (References: ATEL 4910, CBAT TOCP): On 21.638 March 2013, M. Sugano, Kakogawa, Hyogo-ken, Japan reported the discovery of an apparent supernova in M65. The object received its official designation, SN 2013am (CBET 3440). The coordinates of SN 2013am are R.A. : 11h18m56.93s, Dec: +13°03'49.3". It is located 15".3 east and 103".2 south of the center of M65
Higher resolution and more information is avaliable here ...

Thank you for looking ...
Last edited by ViliMax on Wed Apr 10, 2013 6:18 am, edited 2 times in total.

Brian L
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Location: Beecher Wisconsin

Re: Submissions: 2013 April

Post by Brian L » Wed Apr 10, 2013 12:58 am

Airglow
Copyright Brian Larmay

Image

Higher resolution at: http://cygnusxone-telescopiceye.smugmug ... &lb=1&s=X2

Canon 60D
Peleng 8mm fisheye

astrofotografen.se
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Re: Submissions: 2013 April

Post by astrofotografen.se » Thu Apr 11, 2013 7:13 am

Aurora 360 degree Virtual Reality Experience

Here's a totally new experience I've done with my aurora image data from March 17 when there was a really amazing aurora. I've done a virtual reality experience from my time lapse so that you can pan around watching the aurora from any angle. The animation consists of 2,641 raw images that has been projected to fit into this virtual world.

Click on the image below to experience the aurora

Image

Clear skies

Astrophotographer Göran Strand
http://www.astrofotografen.se/
http://www.facebook.com/fotografgoranstrand

lynnhilborn
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Grazing Galaxies...HST data

Post by lynnhilborn » Thu Apr 11, 2013 7:34 pm

Higher resolution http://www.nightoverontario.com/Astrono ... &lb=1&s=X3

NGC2207 and IC2163 Hubble Space Telescope data processed by Lynn Hilborn. Data from the Hubble Legacy Archive established by the Space Telescope Science Institute, the Space Telescope European Coordinating Facility and the Canadian Astronomy Data Centre.

SkyViking
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Re: Submissions: 2013 April

Post by SkyViking » Thu Apr 11, 2013 11:54 pm

The Carina Nebula (NGC 3372) in Near Infrared
http://www.rolfolsenastrophotography.com
Copyright: Rolf Wahl Olsen The Carina Nebula (NGC 3372) in Optical
http://www.rolfolsenastrophotography.com
Copyright: Rolf Wahl Olsen Link to large optical image: http://smu.gs/ZPUVq8
Link to large infrared image: http://smu.gs/151qzZK

About the images:
These images show the Great Nebula in Carina (NGC 3372) in optical and infrared light. This majestic nebula is one of the largest nebulae in the sky and lies about 7,500 light years distant in the Southern constellation of Carina, The Keel. Several star clusters containing some of the brightest and most massive stars known are found here, including the extremely luminous hypergiant star Eta Carinae - one of the prime candidates for the next supernova explosion in our galaxy.

Traditional images of the Carina Nebula taken in visible light primarily display the striking magenta colour from glowing Hydrogen gas, as well as large dark obscuring clouds of dust.
But infrared light penetrates these clouds better and allows for a deep peek into the heart of the nebula, revealing complex details and thousands of young stars that are otherwise completely invisible.
These stars shine primarily in the infrared and appear as golden red in this image. Only a minority of these are even visible in traditional images.

The infrared region seems largely unexplored by amateur astronomers. But using a filter that only allows infrared light (>700nm) to pass through allows for obtaining an image of these hidden features. Effectively the band observed is 700-1100nm since the sillicon CCD chip is not responsive to wavelengths longer than that, and this band is called NIR (Near Infrared). One issue arising from this technique is that the NIR band does not have a colour as such, since it lies outside the visible light spectrum. So in this image I have substituted the R channel with NIR which nicely brings out the contrast between the nebula itself and all the young obscured stars that shine primarily in infrared.
I used a NIR filter together with G and B filters to create this colour composite. The resulting images were assigned to the different channels as NIR->Luminance, NIR->Red, G->Green and B->Blue.

Images of the Carina Nebula taken in visible light primarily display the striking magenta colour from glowing Hydrogen gas, as well as large dark obscuring clouds of dust. Some notable features are visible in this high resolution view of the central part of the nebula:

Trumpler 14 is one of the youngest and most luminous star clusters in our galaxy. The fierce ultraviolet radiation from its blue giant stars is slowly eroding the surrounding gas and dust away and sculpting huge dark pillars in the process.
At the core of the nebula lies the famous Keyhole (upside-down in this view), a constellation of dark clouds and glowing gas that resembles a giant keyhole.
Also visible throughout the image are numerous Bok globules, which are small dark clouds where new stars are likely forming. These often appear as small dark specks floating in front of the glowing background gas.

The most prominent feature is the unstable hypergiant star Eta Carinae. This, the most luminous star known in our Galaxy, is 100 times more massive than our Sun and 5 million times as bright. The star has entered the final stage of its life and is highly unstable. It is a likely candidate for the next supernova explosion in our galaxy.
Eta Carinae produces giant outbursts from time to time, with the small hourglass shaped Homunculus Nebula being the result of the most recent event in 1841. At that time, and despite its large distance of 7,500 light-years, Eta Carinae briefly became the second brightest star in the night sky, surpassed only by Sirius.

I also made a video from this data: "Hidden Treasures of the Carina Nebula"
Link to HD video: http://smu.gs/ZPVxMC
This video is a tour of the Great Nebula in Carina (NGC 3372) in both optical and infrared light. The music was composed specifically for this animation by my longtime friend Thomas Regin.
Make sure you switch to 1080p HD and watch it in full screen, and turn the sound on. Enjoy :)

ftherrmann
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Re: Submissions: 2013 April

Post by ftherrmann » Fri Apr 12, 2013 4:27 pm

M99
http://fth.bounceme.net/
Copyright: Fred Herrmann All rights reserved.

Rafeee
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Re: Submissions: 2013 April

Post by Rafeee » Fri Apr 12, 2013 5:12 pm

The Spring crescent

0,3 % waxing crescent moon ~ 30 hours
Image
Large img.: http://imageshack.us/a/img547/3615/20130411008706.jpg

Anoter images:
http://imageshack.us/a/img716/2739/20130411008750.jpg
http://imageshack.us/a/img585/9219/20130411008715.jpg
http://imageshack.us/a/img855/6084/20130411008763.jpg

Details: Canon EOS1000D + 70-300 EF / 400/6.3
Location: Hungary, Somogy, Kaposfő ( 46.3670°N, 17.6670°E )

It was easy to see, the sky was clear. Few clouds in the horizont, points in the right place.
My first observation of the year which i did not have to be cold. Winter is over! Its springtime!

Rafael Schmall Photography

philto
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Re: Submissions: 2013 April

Post by philto » Sat Apr 13, 2013 4:14 pm

solar sunspot April 13th 2013 from France
C.14 + H-alpha Daystar filter
image © Philippe TOSI
regards

Tamas Abraham
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Re: Submissions: 2013 April

Post by Tamas Abraham » Sat Apr 13, 2013 6:55 pm


jeffj
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Re: Submissions: 2013 April

Post by jeffj » Sat Apr 13, 2013 10:30 pm

M51 - Whirlpool Galaxy
Full-size/details: http://jeffjastro.com/dso/M51_14Mar13.htm
Copyright: Jeffrey O. Johnson (http://jeffjastro.com)

Chepar
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Re: Submissions: 2013 April

Post by Chepar » Sun Apr 14, 2013 12:46 am

C11 (f20&f30), dmk21au618. 04/11/2013, Málaga, Spain.

[attachment=0]chepar.jpg[/attachment]
http://imageshack.us/a/img842/8766/satu ... mposic.png

Full size: http://www.astrobin.com/full/38814/0/?mod=none&real=

Regards! :wink:
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tawilson
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Re: Submissions: 2013 April

Post by tawilson » Sun Apr 14, 2013 1:39 am

Sky Seldom Seen
Copyright: Francis Audet
http://www.francisaudet.com/
[attachment=2]DSC_0483 1200x.jpg[/attachment]

A Ghostly Green Bubble
Copyright: ESO
http://www.eso.org/public/news/eso1317/
http://asterisk.apod.com/viewtopic.php?t=31161
[img2]http://www.eso.org/public/archives/imag ... o1317a.jpg[/img2]

Gegenschein, Airglow, and the Milky Way
Copyright: Yuri Beletsky
http://www.lco.cl/
[attachment=1]air_camp.jpg[/attachment]

Ice Cloud Heralds Fall at Titan's South Pole
Copyright: NASA
http://www.jpl.nasa.gov/news/news.php?release=2013-133
http://asterisk.apod.com/viewtopic.php?t=31158#p197278
[img2]http://www.jpl.nasa.gov/images/cassini/ ... 25-640.jpg[/img2]

Sombrero Galaxy
Copyright: Martin Pugh
[attachment=0]Sombrero_LRGBv4-Final.jpg[/attachment]
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philto
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Re: Submissions: 2013 April

Post by philto » Sun Apr 14, 2013 6:03 pm

hi very good seeing on sun today 14th April 2013.
C.14 + h-alpha daystar filter 0.5 A
regards

Philippe TOSI (France)

wilsondm
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Re: Submissions: 2013 April

Post by wilsondm » Mon Apr 15, 2013 2:54 am

Fireball over La Mancha
http://www.astronomadas.com
Copyright: Leonor Ana Hernández and Observatorio Astronómico de La Hita
[attachment=1]fireball.jpg[/attachment]

Summer Milky Way
http://davidpearson-photo.smugmug.com/
Copyright: David Pearson Lightning over Paris
http://ptrenard.skyrock.com/
Copyright: Bertrand Kulik
[attachment=0]IMG_9901p.jpg[/attachment]
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Astromontufar
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Re: Submissions: 2013 April

Post by Astromontufar » Mon Apr 15, 2013 3:16 am

Rising milky way


CopyRight: Sergio Montúfar
Attachments
Milky (530x800).jpg
Sergio Emilio Montúfar Codoñer
pinceladasnocturnas.com

Astromontufar
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Re: Submissions: 2013 April

Post by Astromontufar » Mon Apr 15, 2013 1:35 pm

The candle in the dark

Explination: Dark skies?, our galaxy shines in the dark skies like a candle in the dark that light up all the stars

copyright: Sergio Montúfar
Attachments
Diapositiva1.JPG
Sergio Emilio Montúfar Codoñer
pinceladasnocturnas.com

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goldpaintphoto
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Re: Submissions: 2013 April

Post by goldpaintphoto » Mon Apr 15, 2013 1:41 pm

Balancing Rocks in Central Oregon
Copyright: Brad Goldpaint
http://goldpaintphotography.com/
http://portfolio.goldpaintphotography.c ... 0022-5.jpg
[attachment=0]goldpaint.jpg[/attachment]
"Geologists explain that the formations are the result of the aging, tilting and erosion of two layers of consolidated volcanic ash, known as tuff. These ash flows originated from the Cascade volcanoes to the west many thousands of years ago. The top layer of tuff was tougher so to speak than the bottom layer, so as the ground tilted and cracked and the softer bottom layer was eroded by wind and water, top-heavy rock pedestals remained.

Discovered by surveyors way back in the 1850s, the unusual rocks were known to only a handful of people for many decades. They remained hidden in a forest of pine and juniper until a forest fire in 2002 denuded the area. Visible now from Forest Service roads and from boats on the popular Lake Billy Chinook below, the rocks are visited more frequently. Sadly, the formations pose an irresistible temptation to immature vandals and a few of the pedestals have been toppled. Fortunately, most are far more massive, stable and durable than they appear."
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