Starship Asterisk*

Galaxy NGC4559 in Coma Berenices by Oleg Bryzgalov, on Flickr

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 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

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

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

Rho Ophiuchi Cloud Complex

Copyright Tom Masterson

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

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

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/

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

Triple conjunction seen from plane flying over clouds at 38,000 feet above sea level
Copyright: Jakub Marchewka
April 19, 2015
exposure parameters: f/3.8, 1/2 s, ISO 400, 170 mm

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

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

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/

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.

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

M51 Whirpool Galaxy LRGB by Francescodb, on Flickr

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

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

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

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

Copyright: William J. Shaheen

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

Copyright: William J. Shaheen

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

Copyright: William J. Shaheen

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

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

Copyright: William J. Shaheen

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

Copyright: William J. Shaheen

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

Copyright: William J. Shaheen

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