Starship Asterisk*

Milky Way from the island of Mallorca, Baleares, Spain.
Comet 252P can be Linear, Saturn and Mars.
Mosaic consists of 24 individual panels, each panel is a single exposure, without tricks rare.

Copyrights: David Forteza
https://www.flickr.com/photos/david_astrofotografia/

Vía Láctea, Cometa 252P, Saturno & Marte by David Forteza, en Flickr

Higher quality
https://flic.kr/p/FhZMQZ

Colourful clouds
Copyrights: Midalys Estevez Moon and Mercury 09/04/2016
Copyrights: E Stanley Milky Way over Whale Valley
Copyrights: Ahmad Shrief 252P LINEAR, Mars, Saturn, meteor and Milky Way
Copyrights: Luc Perrot Composite Corona of Eclipse March 09
Copyrights: Wolfgang Strickling Comet and Milky Way
Copyrights: Jose Jimenez M1 expanded
Copyrights: Álvaro Ibáñez Pérez Saturn (March 19th. 2016.)
Copyrights: Damian Peach Milky Way with Mars, Saturn and Linear Comet
Copyrights: Sergi Luque Different colours of scintillation
Copyrights: Sam Cornwell MIlky Way from Xinglong observing station, China
Copyrights: Haitong Yu Perigee Earthshine and Planet Mercury above Lisbon City
Copyrights: Miguel Claro Front Row Seat to the Universe
Copyrights: Steve Cullen Red & green airglow, Milky Way at Nauset Lighthouse
Copyrights: Chris Cook Milky Way Core over Death Valley
Copyrights: David Fox Star trails over Death Valley
Copyrights: David Fox Crescent Moon
Copyrights: Sergio Montúfar

Abell 33: The Diamond Ring Nebula
http://www.pbase.com/dsantiago/image/162746504/original
Copyright: Derek Santiago

Twelve years of Jupiter oppositions ( 2004-2016 ). Note: 2013 is not missing it was oppositionless last time was in 2001. I wanted to go back further to 1985 but the quality are way below to the modern era of digital Ccd's videos compare to SLR cameras at the time ( Center image =1986, 1996) and a single image if your lucky. Many equipments were used at the time to the present. ( Equipments: LX200ACF 12 in., 10in, C8 OTA's, CGE mount, Flea3, DMK21, TouCam 740,840, SAC7 Ccd's, Canon AE1, Nikon F SLR's, TeleVue 3x barlows, PowerMate 2.5x, Celestron 2x barlows.)

Abandoned under the Milky Way | Gytheio, Greece.
http://www.alexandrosmaragos.com
Copyright: Alexandros Maragos

Abandoned under the Milky Way I by Alexandros Maragos


Abandoned under the Milky Way II by Alexandros Maragos

ANIMATION: Jupiter's Movement in front of a Star
http://www.far-light-photography.at
Copyright: Arno Rottal

http://cdn.astrobin.com/images/3632/201 ... e23b8f.gif

The movement of Jupiter with it's 4 gallilean moons in front of the star HD95848 over 3 hours.
1 picture every 5min. 36 pictures in total.
The star seems to be a fiftth moon.

Meade ETX90 with Canon 650D on Skywatcher StarAdventurer

AR 2529 by very good seeing .
204 mm H alpha refractor pst modified 1A + bf-15
Image Philippe TOSI

Mars and its Rival Antares and the Rho Ophiuchi cloud complex
CDS-5D, Canon 200mm lens, 110 * 2mins , ISO800

More info: http://philhart.com/content/rival-to-mars

Phil

philhart wrote:

Mars and its Rival Antares and the Rho Ophiuchi cloud complex
CDS-5D, Canon 200mm lens, 110 * 2mins , ISO800

More info: http://philhart.com/content/rival-to-mars

Phil

Very nice picture, Phil! Mars sure looks as if it belongs there.

Ann

Large Magellan Cloud

Image Credit: Jonathan Green (https://goo.gl/8tUz5c) and Amit Ashok Kamble (https://goo.gl/pbtWvG) / Auckland Astronomical Society (https://goo.gl/Z16tQU)

The Large Magellanic Cloud is the largest of all the dwarf satellite galaxies that orbit the Milky Way, it's tiny in comparison with the Milky Way’s 200-plus billion stars – the Large Magellanic Cloud (LMC) is thought to contain around 30 billion stars, Persian astronomer Abd Al-Rahman Al Sufi wrote about the ‘clouds’ over a thousand years ago, but it wasn’t until explorer Ferdinand Magellan travelled south and wrote about them in the 14th century that their existence became common knowledge – and it’s his name they bear.

The Large Magellanic Cloud seems to orbit the Milky Way, bound by its gravity. In the distant future it may be torn apart and absorbed by our galaxy. The LMC is the third closest galaxy to the Milky Way and is thought to be about 160,000 light-years away. Without visual aids the Large Magellanic Cloud look like a roughly rectangular patch of light, but with decent binoculars or a small telescope you can see nebulae strewn through the LMC. The most outstanding of these is the Tarantula Nebula – the most active star-forming region in the 30-odd galaxies including the Milky Way that make up the Local Group. It’s named for its spidery appearance – a cluster of incredibly hot massive stars lies at the center of long tendrils of hot gas. The Large Magellanic Cloud is circumpolar meaning that it just circles around the South Celestial Pole endlessly, it never sets as seen from New Zealand skies, because they’re so close to the South Celestial Pole, the Magellanic Clouds can only be seen from the southern hemisphere.

This image is the result of a collaboration between Astrophotographers Jonathan Green and Amit Kamble, Jonathan captured the image data and Amit processed the image in PixInsight, the image is made up from 30 x 1 minute exposures captured with a Canon 60da at ISO1250 through a Canon 200 mm lens set at f/2.8, 21 dark frames were subtracted for calibration and the stars were tracked using a iOptron sky Guider mount.

Exif: 30 x 60sec, f3.2, ISO 1250 at 200mm on Canon 60Da, tracked using iOptron Sky Guider.

IC405
full size : http://www.cielboreal.com/galerie/photo63f.jpg
total frame 107Hr done with TEC140 on Paramount MX

http://www.cielboreal.com
Copyright: J.C CANONNE, P. BERNHARD, D. CHAPLAIN & L. BOURGON

Rho Ophiuchi cloud complex with Mars and Saturn

The Rho Ophiuchi cloud complex is a dark nebula of gas and dust that is located 1° south of the star ρ Ophiuchi of the constellation Ophiuchus. At an estimated distance of 131 ± 3 parsecs, this cloud is one of the closest star-forming regions to the Solar System.

This cloud covers an angular area of 4.5° × 6.5° on the celestial sphere. It consists of two major regions of dense gas and dust. The first contains a star-forming cloud (L1688) and two filaments (L1709 and L1755), while the second has a star-forming region (L1689) and a filament (L1712–L1729). These filaments extend up to 10–17.5 parsecs in length and can be as narrow as 0.24 parsecs in width. Some of the structures within the complex appear to be the result of a shock front passing through the clouds from the direction of the neighboring Sco OB2 association.

Temperatures of the clouds range from 13–22 K, and there is a total of about 3,000 times the mass of the Sun in material. Over half of the mass of the complex is concentrated around the L1688 cloud, and this is the most active star-forming region.[3] There are embedded infrared sources within the complex.[6] A total of 425 infrared sources have been detected near the L1688 cloud. These are presumed to be young stellar objects, including 16 classified as protostars, 123 T Tauri stars with dense circumstellar disks, and 77 weaker T Tauri stars with thinner disks.[2] The last two categories of stars have estimated ages ranging from 100,000 to a million years.

The first brown dwarf to be identified in a star-forming region was Rho Oph J162349.8-242601, located in the Rho Ophiuchi cloud.[better source needed][8] One of the older objects at the edge of the primary star-forming region was found to be a circumstellar disk seen nearly edge on. It spans a diameter of 300 AU and contains at least twice the mass of Jupiter. The million-year-old star at the center of the disk has a temperature of 3,000 K and is emitting 0.4 times the luminosity of the Sun.
text Wikipedia https://en.wikipedia.org/wiki/Rho_Ophiu ... ud_complex

Canon eos 5D mk2, SW EQ6, EF 85mm f1.2 LII, 85mm f/2.2, Iso800, 20X120sec, DSS
Corfu, Greece 12.04.2016

ISS + Sunspot 2529


Canon 5Ds + 100-400mm @400mm + 1.4x Converter = 560mm; Photograph is a 100% Crop
1/2000, f/18, Iso100

Story behind the photograph:
In the last minutes before the 2sec lasting transit i had to relocate to a new spot because a small cloud in the blue sky decided to hide the sun. That dramatically changed the transit time and everything what had been prepared half an hour ago. 30 seconds (!) before the transit I found a new place, ran from the shadow into the sunlit field and just pushed the trigger aiming on the sun. That's the story about this photograph (5 image stacking). Sometimes it's all about timing. I am glad it worked in the very last second.

Kind regards,
Marco Rank

Aurora Dowtown
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne
People often wonder how strong can be a nothern light.

This picture was shot during a middle power aurora (G1 class) on april 13th, and we see that it's easy visible despite the lights of Hveragerdi in Iceland.

northern light at Jokulsarlon
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne

Classical but still impressive, a northern light at Jokulsarlon. Light of dawn is still visible.

End of the season of the northern lights
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne
In country like Iceland, there is no astronomical dawn after mid-april. Du to that, it's possible to see wonderfull nothern light also with the colorfull lights of dawn. Within few weeks it will not be possible at all to see northern light any more in the northern part of earth until the end of august.
But this winter was also the last very interesting winter for northern lights since the activity of the sun is strongly decreasing.

This picture was shot during a middle power aurora (G1 class) on april 13th,near Keflavik in Iceland.

Not the blue colors quite rare int northern lights.

A hot river in Reykjafjall Mountain
http://astrophotography.fr/

Copyright: Jean-Luc Dauvergne

How said that you have to be freezed to watch northern lights ?

In the Reykjafjall Mountain, many hots springs and hots rivers can be found. It's possible to have a bath in this hot weater (around 40°C) and watch the lights in the sky. Wonderfull experience ! This picture was took during the G1 storm of apris 12th.

There is a eternal fight between LIGHT and DARK. Always this fight is interpreted as good and evil, and everyone understand that dark is evil.

But in this fight I´m at the side of the dark, at the side of the night, at the side of the stars and milky way ... because I´m a night creature.
Reach the westernmost point of Europe, a place where ancient Romans decided that there just the end of the world, Finisterrae, facing the immense Atántic Ocean, a place where one would expect to find the best firmament of my land, the darkest sky. And yet it is so light that it seems impossible to see a star.

It is a pity, imagine if nearby towns were more respectful with light.

The last house on the earth is illuminated by backlit of the lighthouse, left that immense mass of light comes from the nearby towns of Corcubión and Cee, bounced off the clouds becomes an orange robe all-consuming.

More quality at https://500px.com/photo/149425429

If you like, you can see more at http://daniel-llamas.es

The flare of AR2529 15th of April
Clavé 80 mm + Solarmax60 + lumenera 24x36
image : Philippe TOSI

http://www.hdr-sky.com/data/tosi/APOD/f ... 29apod.jpg

14th of April

Sirius A and B Date: 2016.4.5
Location: Tataka, Yushan National Park, Taiwan
Optics: Celestron C11 Edge HD+ 2X barlow
Camera: ASI120MC

Copyright: Hung-Hsuan Yen
https://www.facebook.com/redscosky

The Large Magellanic Cloud (LMC) - Deep Wide-field Narrowband
Flickr: https://flic.kr/p/GgMkjs
Copyright: Chris Marklew

Captured from our backyard, Canberra - Australia, January - April 2016.

FSQ106EDXIII, FLI PL16803
SII:540, OIII:750, Ha:1080, 39.5 hours total. https://c2.staticflickr.com/2/1591/2643 ... e51b_k.jpg

Mars on April 14th, 07:28ut. Regions are at Bottom (R) Hisperia, (Bot) Zealakus and top (Bright mist/cloud) Hellas, (L) Aeria, (Cntr) Syrtis Major, (Top) Nodus Alcyonius, Utopia, NPC.

Saturn on April 14th, 07:58ut. Still within two months from opposition.