Submissions: 2013 April

f.lorand · Post by **f.lorand** » Wed Apr 17, 2013 5:07 pm

Messier 94 widefield
URL of website, if any
Copyright: Lorand Fenyes

web-size:
http://www.pleiades.hu/en/galeria/kozmo ... _kicsi.jpg

full-size:
http://www.pleiades.hu/en/galeria/kozmo ... mal/48.jpg

: Click to view full size image

Astromontufar · Post by **Astromontufar** » Wed Apr 17, 2013 8:56 pm

Circumpolar stars

Depending on the viewers location on earth a circumpolar star is a star that never sets due to its proximity to the celestial poles, the picture above represents the circumpolar borealis (north) and the picture below represents the circumpolar australis (south).

Copyright: Sergio Montúfar

IanP · Post by **IanP** » Thu Apr 18, 2013 10:51 am

This picture of the Sunset over Rottnest Island (25km distance) was taken from City Beach, Western Australia. The Sun is setting over approaching band of clouds (on the BOM radar 40km offshore).
From that distance, clearn and dry air allows to identify the island’s wind turbine, just below the Sun …
Cam: Sony A65
Lens: 300mm @ F5.6

Alexandre Cucculelli · Post by **Alexandre Cucculelli** » Thu Apr 18, 2013 11:41 am

IC 434

January 15th and December 11th, 2012

Technique

Setup : Celestron C9 F/10
Imager : Camera CCD QSI 540WSG, guide Atik 16IC
Exposure 9 X 1800 sec in H-alpha, 5X600 sec in RGB -30 ° binning x2

http://www.astrosurf.com/cucculelli/index.html

guest123 · Post by **guest123** » Thu Apr 18, 2013 2:05 pm

How C9 can produce 4-arm stars?

wilsondm · Post by **wilsondm** » Fri Apr 19, 2013 12:49 am

M6 and M7
http://www.astropix.com/
Copyright: Jerry Lodriguss

: Click to view full size image

SN 1006
http://chandra.harvard.edu/photo/2013/sn1006/
Copyright: NASA/CXC/Middlebury College/F.Winkler
http://asterisk.apod.com/viewtopic.php?t=31220

: Click to view full size image

Panorama - Milky Way Rising over Gerstle Cove, Salt Point State Park, CA
http://www.flickr.com/photos/shupp/
Copyright: Bill Shupp

: Click to view full size image

NGC 6974
http://www.atlasastronomia.com/
Copyright: Cesar Blanco
http://www.atlasastronomia.com/astrofot ... T_2000.jpg
[attachment=0]ngc6974_Cesar.jpg[/attachment]

ftherrmann · Post by **ftherrmann** » Fri Apr 19, 2013 4:20 am

guest123 wrote:How C9 can produce 4-arm stars?

String or StarSpikesPro

Bi2L · Post by **Bi2L** » Fri Apr 19, 2013 10:15 am

Waxing Crescent 4.95 days old

15 Apr. 2013, 19:30UT
Toa130 1000mm f7.7
Canon eos40D
Corfu, Greece

mewlon300 · Post by **mewlon300** » Fri Apr 19, 2013 1:03 pm

LEO TRIPLET supernovae 2013am and Tidal

Copyright: Eduard Garcia Ribera (Parc Astronomic Montsec-PAM)
[attachment=0]ribera.jpg[/attachment]

Click to view full size image:
http://www.astroedu.net//mediapool/75/7 ... 2final.png

Equipment
Telescope : FS78
Imager : Camera CCD QSI 540
Exposure: LRGB:240:80:80:90

Efrain Morales · Post by **Efrain Morales** » Fri Apr 19, 2013 3:51 pm

Saturn on April 18th, 05:09ut. At this angle the Southern Hemisphere could be seen through the cassini division and much more brightness on the rings due to the opposition effect or Seeliger effect, It is the brightening of a rough surface, or an object with many particles, when illuminated from directly behind the observer. Equipment: LX200ACF 12 in. OTA, CGE mount, Flea3 Ccd, TeleVue 3x barlows, Astronomik LRGB filter set.

: Click to view full size image

Rafeee · Post by **Rafeee** » Fri Apr 19, 2013 10:10 pm

The Spring International Space Station

Large: http://img21.imageshack.us/img21/5904/2 ... 4301sw.jpg
(Canon EOS1000D + Tokina 116)
Have you seen it?

In the middle of the spring, we have very "fine" weather. I crossed a large swamp for this beautiful cherrytree & ISS combo. Worth it!

Rafael Schmall Photography: http://www.facebook.com/pages/Rafael-Sc ... 6556170718

marion165 · Post by **marion165** » Sat Apr 20, 2013 2:09 pm

Spring is Here!
http://www.flickr.com/photos/radicalret ... 665746816/
Copyright: Marion Haligowski

Spring is Here! by Radical Retinoscopy, on Flickr

Ten minutes of star trails were photographed over a flowering tree in Lancaster, Pennsylvania. The photograph was made of twenty-five 25 second exposures taken with a Canon T2i and a Sigma 10-20mm lens at 10 mm (f/4.5 / ISO 400). Strong winds created the blurring effect of the branches of the flowering tree giving the photograph an impressionist feel. Corona Borealis can be seen just above the tree in this photo.

marsel@squiver.com · Post by **marsel@squiver.com** » Sat Apr 20, 2013 4:20 pm

Aurora Airways

Copyright: Marsel van Oosten

>Click here for large version<

Last month I led two photo tours in Iceland. The weather doesn't not always cooperate in Iceland, but we were fortunate to be able to photograph the northern lights on both tours.

I had already seen many northern lights images shot in Iceland, and I noticed that the vast majority of them were taken at the same spots. So when the aurora predictions were good, I decided to take our group to a special location that would give us truly original northern lights images.

We left late in the evening in our super jeep to visit a remote crash site with an old plane. We brought some extra lights to light the plane from both the inside and the outside, and then we just waited for the magic to happen. And when it did, it was this perfect curved line that followed the contours of the plane. I love it when a plan comes together!

The cold wind that night was brutal, but with a sight like this in front of you, you really don't mind. After a couple of hours we all returned to our guest house with a big smile on our face and with some of the most original aurora shots ever taken in Iceland.

Delio Tolivia · Post by **Delio Tolivia** » Sat Apr 20, 2013 7:26 pm

Clavius Mosaic

Copyright: Delio Tolivia Cadrecha & Isaias Gonzalo Solis

LArger version here:
http://i.imgur.com/JEhd9jx.jpg

Mosaic of 7 photos from 7 1 minute long videos. Taken with C8 telescope, Barlow 3X and DMK21 camera. Processed with Registax and Photoshop.

rwittich_de · Post by **rwittich_de** » Sat Apr 20, 2013 8:09 pm

M101 Pinwheel Galaxy with 12" f/4 Newtonian
Enjoy this beautiful galaxy.
Reinhold Wittich

: Click to view full size image

http://www.wittich.com/?p=1002

ftherrmann · Post by **ftherrmann** » Sun Apr 21, 2013 4:52 am

Galaxy NGC5850
http://fth.bounceme.net/
Copyright: Fred Herrmann All rights reserved.

: Click to view full size image

Grant.earth · Post by **Grant.earth** » Sun Apr 21, 2013 7:10 am

Star trails and dinosaurs.
A stacked photograph of 1 hour of 30sec exposures.
The South Celestial Pole is seen centre, as the Dinosaur "Elliot" gazes toward the stars, near Winton in Queensland, the Australian outback.

http://outbackrover.blogspot.com.au

Dinosaur Stars by mars73, on Flickr

lup974 · Post by **lup974** » Sun Apr 21, 2013 8:24 am

The Milky Way above the volcano "Piton de la Fournaise"
http://www.lucperrot.fr
http://www.facebook.com/lucperrotphoto
Copyright: Luc Perrot

: Click to view full size image

The sky was once again beautiful ... but I had to be fast ... the clouds were not far away!
It is amazing what you can see with a good pair of binoculars!

stellairama · Post by **stellairama** » Sun Apr 21, 2013 4:30 pm

Distant Galaxies "NGC 4027".

: Click to view full size image

http://stellairama.blogspot.it/

wowikrau · Post by **wowikrau** » Sun Apr 21, 2013 10:51 pm

http://www.ried-sternwarte.de
Copyright: Vladimir Rau

http://ried-sternwarte.de/Internet/M82.jpg

Kind regards,
Vladimir Rau

Gwangwook Kim · Post by **Gwangwook Kim** » Mon Apr 22, 2013 2:16 am

Near Anteres region
Website : http://www.nightsky.kr/xe/4310
Copyright: Gwangwook Kim

: Click to view full size image

wilsondm · Post by **wilsondm** » Mon Apr 22, 2013 3:10 am

360 degrees Panorama with Orion and Scorpius
http://www.luisargerich.com
Copyright: Luis Argerich
[attachment=3]j_EOS 6D6314_16 Panorama_v2.jpg[/attachment]

Moon Mosaic
Copyright: Igor Veniaminov
[attachment=7]Lunar_Eclipses.jpg[/attachment]

Milky Way rises over Sibillini National Park (Italy)
http://www.flickr.com/photos/stefanopalmieri75/
Copyright: Stefano Palmieri
[attachment=4]via_lattea_quercia_1.jpg[/attachment]

Circumpolar
http://www.astrosurf.com/lecureuil
Copyright: Patrick Lécureuil
[attachment=5]circump_tauzia_s.jpg[/attachment]

Milky Way Panorama
http://www.facebook.com/sethschroederphotography
Copyright: Seth Schroeder
[attachment=1]IMG_5627_stitch.JPG[/attachment]

The Moon in a Drop
http://www.danikxt.com.es/fotografia/inicio.html
Copyright: Dani Caxete
[attachment=2]the-Moon-in-a-Drop.jpg[/attachment]

M52, NGC 7635 and SH2 157
http://www.atlasastronomia.com/
Copyright: Cesar Blanco
[attachment=0]M52_NGC7635_ 7538_ SH2157_162_159.jpg[/attachment]
http://www.atlasastronomia.com/astrofot ... 9_3000.jpg

Orion Narrowband
Copyright: Robert Fields
[attachment=6]orion-nebula-nb.jpg[/attachment]

kokehtz · Post by **kokehtz** » Mon Apr 22, 2013 11:10 am

Sun in the line of CaK
Copyright: Álvaro Ibáñez Pérez
http://www.flickr.com/photos/kokehtz

: Click to view full size image

philhart · Post by **philhart** » Mon Apr 22, 2013 12:38 pm

Solar Corona
Queensland Solar Eclipse
14th November 2012 (UT 13th Nov)

: Click to view full size image

Composite of images taken with a William Optics Zenithstar II (545mm, f6.4) and Canon 5D MarkII camera (ISO100), with exposures from 1/90th sec to 2 seconds long. For the outer parts, I have also used some images captured with a Pentax 300mm f4 ED IF lens (1/4 and 1sec at ISO100) and another Canon 5D MarkII. Those two imaging trains were tracking on my trusty old Vixen GP-DX mount.

More details: http://philhart.com/content/solar-eclip ... ember-2012

Phil

philto · Post by **philto** » Mon Apr 22, 2013 3:23 pm

hello, the sun today with H-alpha filter daystar on C.14 process under Autostakkert 2,CS5 and photomatix 4.2 pro
regards
image © Philippe TOSI (France)

: Click to view full size image

Starship Asterisk*

Submissions: 2013 April

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Sunset from a distance

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Re: Saturn - April 18th

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