Submissions: 2013 April

owlice · Post by **owlice** » Mon Apr 01, 2013 4:33 am

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Please post your images here.

Please see this thread before posting images; posting images demonstrates your agreement with
the possible uses for your image.

Please keep images under 400K, whether hotlinked or uploaded.

Thank you!

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terry.hancock · Post by **terry.hancock** » Mon Apr 01, 2013 4:40 am

Pinwheel Galaxy M101 with H-Alpha
Copyright: Terry Hancock
http://www.flickr.com/photos/terryhanco ... hotostream

: Click to view full size image

gerhard.bachmayer · Post by **gerhard.bachmayer** » Mon Apr 01, 2013 3:24 pm

M78 and NGC 2017 in Orion
Copyright: Gerhard Bachmayer
http://www.pbase.com/gbachmayer/image/1 ... 3/original

: Click to view full size image

ViliMax · Post by **ViliMax** » Mon Apr 01, 2013 4:06 pm

NGC 1491 (LBN 704, LBN 706, Sh 2-206) - Emission nebula and HII region in Perseus

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

Copyright: Velimir Popov

NGC 1491 (also designated SH2-206 and LBN 704) is a bright emission nebula and HII region, located on the edge of a vast cloud region of neutral gas, about 10 700 light-years. The entire nebula is quite irregular. The major source of ionizing radiation is the blue star BD +50 886, which has been classified either as O5V star (Crampton, D., Fisher, W.A. 1974 Publ. Dominion Astrophys. Obs. Victoria Vol. 14, No. 12, p. 296-297) or as O4 star (Hunter, D.A., Massey, P. 1990, Astronomical Journal (ISSN 0004-6256), vol. 99, March 1990) The ionizing star is located about 1' to the east of the brightest emission. The blue star is illuminating the nebula while its strong stellar wind is “blowing” a bubble in the gas that immediately surrounds it.

: Click to view full size image

Higher resolution and more information is avaliable here ...

Thank you for looking ...

darkfire · Post by **darkfire** » Mon Apr 01, 2013 4:41 pm

C/2011 L4 Panstarrs & M31 from K31 observatory (BELLLINO)

http://cdn.astrobin.com/images/ea4236e6 ... 204e97.jpg

direct link: http://www.astrobin.com/37594/

Roberto Barcellona
Associazione Astrofili Bisalta
Osservario Astronomico di Bellino (CN) - Observatory code: K31

daloop · Post by **daloop** » Mon Apr 01, 2013 9:25 pm

Astrophotographer
Copyright: Adam Moncrieff
www.amoncrieff.ca

: Click to view full size image

This image shows an astrophotographer preparing for a night of imaging. As twilight almost disappears on the left side of the image a faint purple light can be seen on the right from an aurora. The winter Milky Way streaks down the center of the image with comet PanSTARRS and m31 to the left just above the horizon.

Thanks

wilsondm · Post by **wilsondm** » Tue Apr 02, 2013 1:19 am

Pleiades and Hyades
Copyright: Patrick Richter and Marcus Degenkolbe
[attachment=0]widefield_plehy_nasa_big.jpg[/attachment]

NGC 5139 Omega Centauri
Copyright: Joaquin Polleri & Ezequiel Etcheverry Observatorio Panameño en San Pedro de Atacama (OPSPA)
[attachment=1]Omega-Centauri-Joaquin-1.jpg[/attachment]

NGC 3344
http://skycenter.arizona.edu
http://caelumobservatory.com/
Copyright: Adam Block
[attachment=2]n3344s.jpg[/attachment]

ISS Image Frontier - making the invisible visible
Copyright: Christoph Malin and Dr. Don Pettit

Curiosity Sol 223 with elevated Drill bit and Mt Sharp
http://www.kenkremer.com
Copyright: NASA/JPL-Caltech/ Marco Di Lorenzo/Kenneth Kremer
[attachment=4]Curiosity Sol 223_5n_Ken Kremer_APOD.jpg[/attachment]

Star Birth in Cepheus
http://www.noao.edu/news/2013/pr1303.php
Copyright: T.A. Rector (University of Alaska Anchorage), T. Allen (University of Toledo) and WIYN/NOAO/AURA/NSF
http://asterisk.apod.com/viewtopic.php?t=31094
[attachment=3]cep_ob3-500.jpg[/attachment]

Thodoris Tzalavras · Post by **Thodoris Tzalavras** » Tue Apr 02, 2013 8:38 am

Saharan Dust Over Cyprus And Sunspots

© Thodoris Tzalavras

The first of April was a pretty weird day in Cyprus, weather wise…
Bursts of dust from the Sahara desert are no strangers to our little island, but still…
Today the atmosphere was so saturated by the Saharan dust that I was able to shoot the Sun with my C8+ telescope *without* a solar filter!!!
I even captured a sunspot on the upper left part of the Sun!

: Click to view full size image

topl · Post by **topl** » Tue Apr 02, 2013 8:19 pm

Corona explosion
Copyright: Thomas Kast
http://www.facebook.com/salamapaja

Auroras danced in the sky from North to South and once they were directly above, the corona opened up and sent colorful rays in all directions. This magic moment lasts usually only a few moments. The Northern lights were a result of a fast-moving CME hitting Earths magnetic field.

: Click to view full size image

cyandro · Post by **cyandro** » Wed Apr 03, 2013 12:15 am

Observation of PANSTARRS comet with galaxy m31 at "Mont Saint Michel de Braspart" chapel, Brittany, France

: Click to view full size image

Alexandre Croisier

IanP · Post by **IanP** » Wed Apr 03, 2013 2:48 am

A couple of days ago during full-moon I took some nice pictures of the rising Moon over Perth CBD. One looks specially great (see attached photo) as it shows the just rising Moon between the BankWest and BHP towers.

Higher res. @
http://westcoastpics23.blogspot.com.au/

markg · Post by **markg** » Wed Apr 03, 2013 11:13 am

Road to Rainbow Galaxy

This image was shot in one of my favorite 'dark sky' locations at Cape Palliser on the bottom of the North Island of New Zealand. This panorama covers almost 360 degrees horizontally, and is made up of 28 individual shots, giving an overall image size of over 275 megapixels. The photo shows the Milky Way high in the sky stretching from east to west. The Large and Small Magellanic Clouds can be seen below the arch of the Milky Way. These two objects are irregular dwarf galaxies and are only visible from the southern hemisphere. The light below the Milky Way to the left is the Cape Palliser Lighthouse, and the small glow on the horizon to the right is the Queen Mary 2 Cruise Ship en-route for Wellington, New Zealand.

The full 275 megapixel version of this image can be seen here: http://gigapan.com/gigapans/126838

Website: http://markg.com.au
Copyright: Mark Gee

: Click to view full size image

philto · Post by **philto** » Wed Apr 03, 2013 5:57 pm

hello a big sunspot today !
image with C.14 + daystar 0.5 A filter lended by HDRsoft.
process with tone mapping under photomatix pro 4.2
regards

image © Philippe TOSI

: Click to view full size image

IanP · Post by **IanP** » Thu Apr 04, 2013 3:04 am

Eta Carinae Nebula
Cam: D60a
Mount: CPC925
Lens: ED80CTF with TeleView 0.8-reducer

Higher res. @
http://westcoastpics23.blogspot.com.au/

NoelC · Post by **NoelC** » Thu Apr 04, 2013 3:19 am

The Monkey Head Nebula in Orion. Made up of NGC 2174, NGC 2175, and some others. North is down in this image.

This full color composite was created from Infrared, Red, and Blue plates on file in the STScI Digitized Sky Survey online database.

The Monkey Head Nebula in Orion

: Click to view full size image

A high resolution 13 megapixel image, which can be considered for publication as APOD, can be found here: High Resolution Image

-Noel

* If selected for APOD, the copyright/credit line should read the same as other DSS/POSS2 imagery, e.g., as shown on these APODs: Witch Head Nebula, M13

sebyta · Post by **sebyta** » Thu Apr 04, 2013 4:13 am

This sector of the nebula is not very prominent in photos, but is extensive in dark structures and hydrogen very showy and not very photographed.
200/1000
DSRL 450 refrigerated at 2 ° C
NEQ6 pro.
I hope you like.
More resolution http://www.astrofotografiadelcielosur.blogspot.com
Copyright: Sebastián Colombo BS. As. Argentina.

: Click to view full size image

wilsondm · Post by **wilsondm** » Thu Apr 04, 2013 6:19 am

Used Parachute on Mars Flaps in the Wind
http://www.jpl.nasa.gov/news/news.php?release=2013-121
Copyright: NASA/JPL-Caltech/Univ. of Arizona
http://asterisk.apod.com/viewtopic.php?t=31110

: Click to view full size image

Zodiacal Light
http://www.flickr.com/photos/93826649@N04/
Copyright: Christophe Marlot
[attachment=1]marlot.jpg[/attachment]

NGC 602
http://www.chandra.harvard.edu/photo/2013/ngc602/
Copyright: X-ray: NASA/CXC/Univ.Potsdam/L.Oskinova et al; Optical: NASA/STScI; Infrared: NASA/JPL-Caltech
http://asterisk.apod.com/viewtopic.php?t=31113
[attachment=0]ngc602_525_labeled.jpg[/attachment]

Nevada's Lake Tahoe Winter Night Sky
http://www.AstroPics.com
Copyright: Wally Pacholka
[attachment=2]LakeTahoe Winter Sky Pano -450wp.jpg[/attachment]

IC 1396
http://www.atlasastronomia.com/
Copyright: Cesar Blanco
[attachment=3]IC 1396_HaSHO_1000.jpg[/attachment]

Galaxy Spiral Arm Formation
http://www.news.wisc.edu/21636
Copyright: Simulation: Elena D'Onghia and Mark Vogelsberger, Harvard FAS Supercomputer Odyssey; Visualization: Thiago ize, Scientific Computing and Imaging (SCI) Institute - University of Utah
http://asterisk.apod.com/viewtopic.php?t=31099

Click to play embedded YouTube video.

astrogades · Post by **astrogades** » Thu Apr 04, 2013 9:45 am

The lighthouse guiding light of comet C/2011 L4 (PANSTARRS). View of the city of western world's oldest (3,000 years old) Cadiz, Southern Spain. But safer than the comet is older than the city founded by the Phoenicians and later Roman domain. Now the domain is the universe and its wonders.

Authors Photo: Jesus Manuel Vargas and Maritxu Poyal held on March 14, 2013, Canon EOS 350 D tripod. 5 second exposures for panning. Canon Telephoto 75-300 mm diaphragm 5.6.

http://sky-astrophotography.com/index.p ... ure&id=990
http://sky-astrophotography.com/

: Click to view full size image

stephen63 · Post by **stephen63** » Thu Apr 04, 2013 2:31 pm

NGC 6217

NGC 6217 is a Barred Spiral Galaxy in the constellation Ursa Minor and lies 60 million light-years away.

Hubble Legacy Archive Data set:
hlsp_sm4ero_hst_acs_11371-ngc6217_f435w_v1_drz_drz (Blue)
hlsp_sm4ero_hst_acs_11371-ngc6217_f625w_v1_drz_drz (Green)
hlsp_sm4ero_hst_acs_11371-ngc6217_f658n_v1_drz_drz (Blended with Red Channel)
hlsp_sm4ero_hst_acs_11371-ngc6217_f814w_v1_drz_drz (Red)

: Click to view full size image

Higher resolution

fitant · Post by **fitant** » Fri Apr 05, 2013 10:44 am

The Southern Cross over Caloundra, Queensland, Australia as a satellite flashes by.

: Click to view full size image

wilsondm · Post by **wilsondm** » Sat Apr 06, 2013 3:01 am

OGLE and the Magellanic clouds
http://www.lco.cl
Copyright: Yuri Beletsky, Las Campanas Observatory, Carnegie Institution for Science
[attachment=2]OGLE.jpg[/attachment]

Iris Nebula
Copyright: Aurélien Lepanot
[attachment=1]iris.jpg[/attachment]

Io Volcanoes
http://www.nasa.gov/topics/solarsystem/ ... laced.html
Copyright: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
http://asterisk.apod.com/viewtopic.php?t=31120

: Click to view full size image

Gravity-Bending Find Leads to Kepler Meeting Einstein
http://www.jpl.nasa.gov/news/news.php?release=2013-124
Copyright: NASA/JPL-Caltech
http://asterisk.apod.com/viewtopic.php?t=31117

: Click to view full size image

M57
http://billsnyderastrophotography.com/
Copyright: Bill Snyder
[attachment=0]M57.jpg[/attachment]

Horsehead Nebula
http://www.flickr.com/photos/31986095@N05/
Copyright: Erik Larsen

: Click to view full size image

Bi2L · Post by **Bi2L** » Sat Apr 06, 2013 4:33 pm

Hello,
I've got this Supermoon capture from last Supermoon rise at 6 May 2012 over Old Town of Corfu.

Takahashi TOA130
1000mm f7.7
Can eos 40D

alfas · Post by **alfas** » Sat Apr 06, 2013 11:56 pm

Saturn and some of its moons
Taken on 06 April 2013.
http://500px.com/rafaeldefavari
Copyright: Rafael Defavari

Click to view full size image

Sasajewun · Post by **Sasajewun** » Sun Apr 07, 2013 11:56 am

Andromeda and PanSTARRS above Lake Huron, 5 April 2013
http://pineriverobservatory.files.wordpress.com/
Copyright: David Allan Galbraith

: Click to view full size image

Comet C/2011 L4 (PanSTARRS) has been hard to spot from southern Ontario, Canada. On the evening of Friday 5 April 2013 I took several tripod-based, wide-angle dSLR photos from the eastern shore of Lake Huron, about 8 miles south of the town of Kincardine. PanSTARRs and M31 look like very similar little smudges in the middle of this frame, shot at about 9 PM, an hour after sunset (Nikon D7000 at ISO 800, 30 sec, f/3.5 with Tamron 24-270 mm lens at 24 mm focal length).

hims1526 · Post by **hims1526** » Sun Apr 07, 2013 5:19 pm

Hello, it is my first time to post an image here.

6 consecutive days of M31 + Comet Pan-STARRS

Link: https://www.facebook.com/photo.php?fbid ... =1&theater
https://fbcdn-sphotos-a-a.akamaihd.net/ ... 0684_o.jpg
Copyright: TimmyWong Photography

: Click to view full size image

Camera: Canon 500D
Lens: Day 1-2: EF-85mm & DSS 2x drizzle, f/4, iso 800, 60 seconds
Day 3-6: EF-200mm 2.8L, f/3.5, iso 800, 60 seconds
Mount: HL-1
Filter: Astronomik CLS-ccd filter
Software used: DSS, PixInsight, PS

Day 2 -6 are all stacked onto day 1's. Thus form this image. The comet should appear to be dimmer each day, however, this phenomenon does not appear on this image because
1) I have used 85mm and DSS 2x drizzle for the first 2 days, hence a rather low S-N ratio, whereas for day 3-5, I have used 200mm 2.8L therefore a rather hgih S-N ratio.
2) I used f/4 for the first 2 days and f/3.5 for day 3-5, this caused the brightness difference
3) PS technique was not so familiar for the first 2 days
4) Number of frames for day 1-2 were <25 and for day 3-4 >40... this provides the high S-N ratio
M31 is enhanced by masking my another photo that was taken in Sept 2012.

Starship Asterisk*

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Recent, rising full Moon - Perth, Western Australia

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Eta Carina, 2013 April 02

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Structures in Eta Carina

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Comet C/2011 L4 (PANSTARRS)

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