Submissions: 2015 April

Oleg Bryzgalov · Post by **Oleg Bryzgalov** » Wed Apr 22, 2015 3:09 pm

Galaxy NGC4559 in Coma Berenices by Oleg Bryzgalov, on Flickr

Sandgirl · Post by **Sandgirl** » Wed Apr 22, 2015 4:43 pm

Comet C/2015 G2 and Helix Nebula
Copyrights: Fritz Helmut Hemmerich
Larger size: https://www.flickr.com/photos/fhhemmeri ... otostream/

Jupiter image, March 2nd
Copyrights: Damian Peach

Astronomers Probe Inner Region of Young Star and its Planets
Credit: A.-L. Maire / LBTO
An article: http://www.lbto.org/leech-hr8799.html

: 1428684122_jpg.jpg (18.64 KiB) Viewed 7256 times

http://asterisk.apod.com/viewtopic.php?t=34680

Sagittarius Rising
Copyrights: Will Vrbasso

Great Bear sprouts wings
Copyrights: Todd Salat

Young Moon crescent
Copyrights: Juerg Alean

Himalayan Chandra Observatory,Zodiacal Light and a Meteor
Copyrights: Navaneeth Unnikrishnan

Messier 51
Credits and copyrights: Data: Hubble Archive; Processing: Raul Villaverde Fraile

Cherry blossom and Summer Triangle
Copyrights: Shingo Takei

Venus images 2015/04/17
Copyrights: Stefano Quaresima

Sandgirl · Post by **Sandgirl** » Wed Apr 22, 2015 5:15 pm

Scorpius and Saturn rising
Copyrights: Elke Schulz

Saturn March 2nd, 2015
Copyrights: Damian Peach

M82
Copyrights: Eric Coles

First Exoplanet Visible Light Spectrum
Credit:ESO/M. Kornmesser/Nick Risinger (skysurvey.org)
An article: http://www.eso.org/public/news/eso1517/

http://asterisk.apod.com/viewtopic.php?t=34687

Orion Hunts over Far Horizons
Copyrights: Will Vrbasso

Face to Face with an Eskimo
Copyrights: Adam Block
Larger size: https://www.adamblockphotos.com/ngc-2392.html

Pluto and New Horizons - artist impression
Copyrights: Thierry Lombry

http://asterisk.apod.com/viewtopic.php?p=242542#p242542

Milky Way and meteor
Copyrights: Marko Korošec

Moon and Venus in Taurus
Copyrights: Wang Letian

philto · Post by **philto** » Wed Apr 22, 2015 7:56 pm

Fantastic solar eruption 21th of April.
H-alpha refractor 204 mm F/10 pst modified.
Pyrennees mountains (1300m)
© Philippe TOSI

: Click to view full size image

: Click to view full size image

SpookyAstro · Post by **SpookyAstro** » Thu Apr 23, 2015 12:04 am

Rho Ophiuchi Cloud Complex

Copyright Tom Masterson

Rho Ophiuchi Cloud Complex 4/19/2015 by tompmasterson, on Flickr

GLombardi · Post by **GLombardi** » Thu Apr 23, 2015 5:04 am

Lyrid and the Milky Way by Gianluca Lombardi Bani, on Flickr

litobrit · Post by **litobrit** » Thu Apr 23, 2015 11:30 am

Hello,
20 and 21 april, 9 hours bin 2, 300s exposures. Atik 383, RCGSO8 mobile and AZeq6. pixinsight and photoshop.
Full and details here http://www.astrobin.com/full/174799/B/

: Click to view full size image

Seantos · Post by **Seantos** » Thu Apr 23, 2015 4:48 pm

Some shots I took of the Lyrid Meteor Shower this morning during the peak!

kuba_mar · Post by **kuba_mar** » Thu Apr 23, 2015 5:31 pm

Triple conjunction seen from plane flying over clouds at 38,000 feet above sea level

: Click to view full size image

Copyright: Jakub Marchewka
April 19, 2015
exposure parameters: f/3.8, 1/2 s, ISO 400, 170 mm

lynnhilborn · Post by **lynnhilborn** » Thu Apr 23, 2015 7:34 pm

High Resolution
http://www.nightoverontario.com/Astrono ... &lb=1&s=XL
Cheers
Lynn Hilborn

ildiora · Post by **ildiora** » Thu Apr 23, 2015 8:43 pm

Argimusco - Star Trail Behind The Eagle Monolith
http://www.dariogiannobile.com
Copyright: Dario Giannobile

: Click to view full size image

Between the Mediterranean sea and the volcano Etna, the upland of Argimusco stands towards the sky. An impressive and evocative place where different monoliths emerge from the ground. Recent studies demonstrated that the site has been used as a natural calendar in order to measure the seasons' cycle. In the next coming years the Argimusco could become the Mediterranean Stonehenge. Different shapes characterize the monoliths like the praying woman and the eagle stone here in the foreground with the stars rotating behind.

Dario G.

Astromontufar · Post by **Astromontufar** » Fri Apr 24, 2015 4:03 am

Orion's Nebulas behind Atuel Canyon

1 exposure for the sky, 1 exposure for the ground, I was unable to do more sky exposures because of the clouds.
59sec, iso 6400 for the sky.
75 sec iso 6400 for the ground.

The ground shows the Atuel Canyon, located in Valle Grande, San Rafael, Mendoza, Argentina.
Ioptron Sky tracker, Sony a7, Nikon 75mm-200mm.

By. Sergio Montúfar
https://www.facebook.com/MilkyWayAddicted
https://www.flickr.com/photos/m_acubens/
http://yourshot.nationalgeographic.com/profile/517775/
https://500px.com/acubens
http://www.astrobin.com/users/m_acubens/

jeff.d69 · Post by **jeff.d69** » Fri Apr 24, 2015 11:49 am

M101, first light with new CCD camera and filter wheel.

Setup:
Skywatcher ED80/600 with flattener/reducer 0,85x
Skywatcher NEQ6
Atik 383L camera
Home made filterwheel with Baader LRGB 36mm set
Guided with a 70/500 refractor with AlCC5

L 18x600s @-10°C
R 9x300s @-10°C
G 9x300s @-10°C
B 9x300s @-10°C

Total integration 5h 15m

Italian Alps, 150Km far from home but in good company.

Full resolution
http://www.skycrumbles.net/Full_Frame_P ... 1_full.jpg

Clear skies, Jeff.

francescodib · Post by **francescodib** » Fri Apr 24, 2015 7:29 pm

M51 - Whirpool Galaxy
Copyrights: Francesco di Biase - www.astropixel.it

M51 Whirpool Galaxy LRGB by Francescodb, on Flickr

trobison · Post by **trobison** » Sat Apr 25, 2015 11:08 am

Sombrero Galaxy
This is a really interesting object that everyone seems to remember. The Sombrero Galaxy, also known as M104 or NGC 4594 is located in the constellation Virgo. It’s smaller than our galaxy, measuring 50,000 light years across. It has a very large central bulge and an incredible dust lane in its inclined disk. This is where it gets its name from as it has an appearance of a sombrero. This galaxy hosts a supermassive black hole. In fact it is one of the most massive black holes measured in any nearby galaxies. The speed of revolution of the stars within the centre of the galaxy could not be maintained unless a mass of 1 billion times the mass of our Sun is present in the centre.
This is a full frame image. The galaxy’s orientation is dictated by the only guide star I could use, so it may look a bit off. After all, there really is no right or wrong way up. Cropping the image would allow for a more tradition presentation, but I really wanted to show as much of the field as possible. It’s full of galaxies. That’s so cool.
Telescope:10 inch RCOS, F9 Ritchey-Chrétien configuration
Mount: Astro-Physics AP-900 Mount
Camera: SBIG STL-11000 CCD (-20 C)
Image scale: 0.83"/pix
Processing: CCDStack and Photoshop

Sombrero Galaxy LRGB 2015 by Terry Robison, on Flickr

Terry

shaunnesy · Post by **shaunnesy** » Sat Apr 25, 2015 11:18 am

Took a trip to Happisburgh ,North Norfolk UK on Tuesday 21st April to capture Milky way over the iconic Norfolk Lighthouse.
The result was captured at 3.15 AM , just before the demise of astronomical darkness. A six pane mosaic spanning from Sagittarius rising towards the South with the lights pollution from Eccles ,through to Cassiopeia and beyond . Andromeda can also be seen low down to the left of the Light house too. Aurora was also active and just visible too
30 sec single exposures at ISO 3200. Canon 6D with Samyang 14mm f 2.8 lens @ f2.8

For full res image http://www.shaunreynoldsastro.com

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 2:52 pm

Due to monsoon weather here in Arizona, summertime objects are frequently better observed in the early morning hours of spring.

For a larger version: http://www.pbase.com/wjshaheen/image/159842177/large

Copyright: William J. Shaheen

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 3:06 pm

: Click to view full size image

For larger version: http://www.pbase.com/wjshaheen/image/159778378/large

Copyright: William J. Shaheen

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 3:12 pm

: Click to view full size image

For larger version: http://www.pbase.com/wjshaheen/image/159732023/large

Copyright: William J. Shaheen

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 3:15 pm

: Click to view full size image

For larger version: http://www.pbase.com/wjshaheen/image/159564487/large

Copyright: William J. Shaheen

EmanueleBalboni · Post by **EmanueleBalboni** » Sat Apr 25, 2015 4:44 pm

The rest of the Hunter
http://www.cosmoedintori.wordpress.com
Copyright: Emanuele Balboni

: Click to view full size image

Time: 20 april 2015 at 21.40 CEST moments after the moonset
Location: Valle Po (Italy)
Venus and the winter constellations are low on the horizon, while Jupiter - high above - is near the Praesepe cluster.
Six shots panorama.

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 4:53 pm

: 20150310_M81_CombExcAvg-IPddpadj-Nebcrvclrbal-TPadj-APOD-test.tif (320.21 KiB) Viewed 6767 times

For larger version: http://www.pbase.com/wjshaheen/image/159446683/large

Copyright: William J. Shaheen

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 7:04 pm

For larger version: http://www.pbase.com/wjshaheen/image/159075531/large

Copyright: William J. Shaheen

WJShaheen · Post by **WJShaheen** » Sat Apr 25, 2015 8:11 pm

For larger version: http://www.pbase.com/wjshaheen/image/158866063/large

Copyright: William J. Shaheen

Sandgirl · Post by **Sandgirl** » Sat Apr 25, 2015 9:01 pm

Getz's Dragon
Copyrights: Columbus State University

As bright as a hundred million Suns: the clusters of monster stars that lit up the early universe
Credit: Shantanu Basu, University of Western Ontario
An article: http://www.ras.org.uk/news-and-press/26 ... y-universe

http://asterisk.apod.com/viewtopic.php?t=34690

Saturn - April 15th, 2015
Copyrights: Flávio Fortunato

Milky Way above Atuel River
Copyrights: Sergio Montúfar

Polar Day
Copyrights: Chang-Jen Wu & Shih-Yi Lin

Moon, Venus and Hyades Conjunction
Copyrights: Paul Storey

C/2015 G2 MASTER (21 April 2015)
Copyrights: Kos Coronaios

Planets in Normandy sky
Copyrights: Mohamed Laaifat

Starship Asterisk*

Submissions: 2015 April

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NGC 4725 the @ galaxie

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The Bridge between Stars

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M16 - The Eagle Nebula in Serpens 24-Apr-2015

M51 - The Whirlpool Galaxy in Canes Venatici 14 & 17-Apr-201

M57 - The Ring Nebula in Lyra 13-Apr-2015

M17 - The Swan Nebula 28-Mar-2015

Re: Submissions: 2015 April

M81 - Large Spiral Galaxy in Ursa Major 10-Mar-2015

M1 - The Crab Nebula 07-Feb-2015

M104 - The Sombrero Galaxy in Virgo 19-Jan-2015

Re: Submissions: 2015 April