Submissions: 2016 April

[Sandgirl]

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[alcarreño]

Copyrights: Raul Villaverde Fraile
Markarian by Raul Villaverde, en Flickr

[Zhuoxiao Wang]

Here is the Milky Way shot in Mauna Kea, August 13th, when the whole rainbow across the sky.

[Thierry Legault]

Northern Lights filmed from Norway in March 2016:

Click to play embedded YouTube video.

Iridium flares filmed over auroras, with pulsating auroras and a shooting star during one flare:

Click to play embedded YouTube video.

[Efrain Morales]

Jupiter, Moons Ganymede (L), Io (R) and its shadows Transiting across the disc on March 31st, 0144ut_0202_0350ut.

[Efrain Morales]

Jupiter, Moons Ganymede (L), Io (R) and its shadows Transiting across the disc on March 31st, 0144ut_0202_0350ut.

[mherbik]

copyright: Matt Herbik
Messier 63 Sunflower galaxy
6 inch Newtonian avx mount atik 414 ex mono

[Astrodoc71]

M42 with "ghost" nebula by astrodoc171, on Flickr

[j.s.ebersole]

NGC3572
http://jebersol.zenfolio.com/
Copyright: John Ebersole

Click to view full size image

Even the most exotic of emission nebulae can be easily overlooked, when neighboring the great Eta Carina nebula. Case in point, the seldom imaged, but none-the-less striking, NGC3572, portrayed here in HST palette.

[Bi2L]

The Glory of our Galaxy

Via lactea, our Galaxy Milkyway floting above the Ionian sea, a cosmic island measure some 100,000–120,000 light-years in diameter and with almost 100–400 billion stars. Our Solar System is about 27,000 light years away from the Galactic Center, while we are on the inner edge of the spiral in the Orion Arm. The rotational period at the position of the Sun is about 240 million years.
The capture is from Chalikounas beach, near lagoon Korission a natura 2.000 area, Corfu, Greece, Earth. While in any other picture you’ve seen the Milky-Way from ABOVE is either another galaxy or an artist’s interpretation.
The Milky Way has several satellite galaxies and is part of the Local Group of galaxies, which is a component of the Virgo Supercluster, which is itself a component of the Laniakea Supercluster.

Canon eos 40D, Ef 15mm fisheye, SW Eq6, Iso800, 2X240sec, DSS,
24.06.2011

[avdhoeven]

Recently on the Dutch site astroforum.nl an initiative was started to share raw image data and see if it was possible to combine different datasets to get more out of the data. The first object that was decide upon was NGC2237, aka the Rosette Nebula. Several observers uploaded their data to an ftp site and it was shared again between all observers to be processed on their own accord.

This is my result of combining the different datasets, resulting in a 34,5h exposure of the heart of this beautiful nebula. For this image Ha, OIII, SII and RGB data was combined.

The people who provided data for this image are: Michael Van Doorn, Irving Pieters, Ruud de Vries, Rob Musquetier and myself.

I did the processing and stacking of this image using Pixinsight and Adobe Photoshop.

I think this image is a nice example how sharing raw image data can provide opportunities to improve the final result considerably.


NGC2237 Rosette Nebula collaboration by Andre van der Hoeven, Michael van Doorn, Irving Pieters, Rob Musquetier and Ruud de Vries, on Flickr

[vanamonde81]

Moonrise sequence above St. Stephen's Basilica
Copyright: Soponyai György



Photo details:
2016.04.05. Budapest, Hungary
Canon EOS 5D Mark II + Canon EF 100/2.8 Macro

[Guest]

Stargate Valhalla by Edward Wolohan, on Flickr

[KuriousGeorge]

Coma Cluster. Copyright KG Observatory.

The Coma Cluster is a large cluster of galaxies that contains over 1,000 identified galaxies.

The cluster's mean distance from Earth is 321 million light years. Its ten brightest spiral galaxies have apparent magnitudes of 12–14 that are observable with amateur telescopes larger than 8". The central region is dominated by two supergiant elliptical galaxies: NGC 4874 and NGC 4889. Most of the galaxies that inhabit the central portion of the Coma Cluster are ellipticals. Both dwarf and giant ellipticals are found in abundance in the Coma Cluster.

The full extent of the cluster was not understood until it was more thoroughly studied in the 1950s by astronomers at Mount Palomar Observatory.

Imaging telescope or lens: Celestron 8" EdgeHD
Imaging camera: QSI 660 WSG
Mount: Losmandy G-11
Guiding camera: Starlight Xpress Lodestar X2
Focal reducer: Celestron 0.7X
Software: PHD Guiding 2, Neat Image V7, PixInsight 1.8, Photoshop CS3, Sequence Generator Pro, Maxim DL6, Adobe Photoshop CC 2014, Astronomy Tools Actions Set V1.6
Filters: Astrodon 1.25" R, Astrodon 1.25" L, Astrodon 1.25" B, Astrodon 1.25" G
Accessories: Starizona MicroTouch Autofocuser, Bahtinov Mask
Resolution: 2588x2100
Dates: March 16, 2016, March 30, 2016, April 4, 2016
Frames:
Astrodon 1.25" B: 23x300" -20C bin 1x1
Astrodon 1.25" G: 23x300" -20C bin 1x1
Astrodon 1.25" L: 93x300" -20C bin 1x1
Astrodon 1.25" R: 24x300" -20C bin 1x1
Integration: 13.6 hours
Darks: ~20
Flats: ~80
Flat darks: ~80
Bias: ~20
Avg. Moon age: 17.95 days
Avg. Moon phase: 45.30%
RA center: 194.978 degrees
DEC center: 27.990 degrees
Pixel scale: 0.637 arcsec/pixel
Orientation: 84.831 degrees
Field radius: 0.295 degrees
Locations: Home, Rancho Santa Fe, California, United States

[Rothkko]

iridiscende and stork, photogram of http://asterisk.apod.com/viewtopic.php? ... 89#p256089 also green flash

mérida, spain. 2016-03-05

[sydney]

Jupiter
April 4, 2016 01:24UT

http://www.astrobin.com/244084/0/

Nick Pavelchak
Altamont, NY

[Sandgirl]

Daytime occultation of Venus
Copyrights: Anthony Ayiomamitis

http://www.perseus.gr/Astro-Lunar-Occul ... 06-18c.htm

Markarian
Copyrights: Raul Villaverde Fraile

Great details in Jupiter on March 29th
Copyrights: Alessandro Bianconi

Startrails and Rising Mars on the Peach Garden
Copyrights: Luocheng

Tranquillitatis and Altai mounts
Copyrights: Francesco Badalotti

Stars do rise and Set
Copyrights: Udit pratap Das

Clouds during sunset
Copyrights: Pnina Gagnon

Beautiful Sunset over at Northern Skies of Singapore
Copyrights: A Kannan

Jupiter with GRS (March 18th, 2016.)
Copyrights: Damian Peach

Moon, Airplane and Mare Orientale in to view
Copyrights: Leonardo Caldas
Full size: http://www.astrobin.com/full/243687/0/?real&mod

M51
Copyrights: Albert Barr

Saturn and Mars in Scorpius
Copyrights: Philip Hudson
Larger version: http://graphicad1.com/nightowl/images/S ... 20Mars.jpg

Milky Way with ISS and Venus
Copyrights: Gassem AL-Ghazwani

[Sandgirl]

Milky Way over Casleo, Argentina
Copyrights: Sergio Montúfar

Moon super zoom
Copyrights: Jhon Harold

The sky during sunrise
Copyrights: Jhon Harold

Super clouds
Copyrights: Jhon Harold

Orion equatorial March 21 spring equinox
Copyrights: Maritxu Poyal and Jesús M. Vargas

An all sky view from Morocco,Azilal country
Copyrights: Arnaud Besancon

Uluru (Ayer's Rock)
Copyrights: Prateek Raghav

The Sun
Copyrights: Adelino Regio

Snowstorm Sun
Copyrights: Alan Friedman

Kilauea Starlight
Copyrights: Jimmy Westlake

Billion stars hotel
Credits: Sergio Montúfar (MWA) & Hernan Moyano

La Vía Láctea (Milky Way) over the Spanish Peaks
Copyrights: Martin P

Comet 67P and Leo Triplet
Copyrights: Justin Tilbrook

HR solar spectrum
Copyrights: Olivier Garde

ISS flyby shot in South Estonia
Copyrights: Martin Mark

[Sandgirl]

Green comet at Paranal Residencia
Copyrights: Petr Horálek

Comet 252P, M14 and NGC6366
Copyrights: Jose F. Hdez

Old Man in the Moon
Copyrights: Rick Baldridge

A comet in the Sky
Copyrights: Sergio Montúfar

Solar pillar over Santa Rosa
Copyrights: James Calamera

Westerlund Nebula - seed beaded picture
Copyrights: Sara Jane Pearman

Comet Linear & Milky Way
Copyrights: Greg Hogan

M 104 - Sobrero Galaxy
Copyrights: George Chatzifrantzis

Lonely Black Hole Relic Shines Light on Young Universe
Credits: Gemini Observatory
More about: http://www.gemini.edu/node/12496

http://asterisk.apod.com/viewtopic.php?t=35808

That illusive fifth moon of Jupiter
Copyrights: Dominique Dierick

Comet 252P and M14 on the Milky Way
Copyrights: José J. Chambó

The solar corona as seen from Ternate Indonesia 9 March 2016
Copyrights: Robert Slobins

Venus and Moon over Madrid
Copyrights: Dani Caxete

Comet 252P/LINEAR passing globular cluster M14
Copyrights: Chris Cook

Waiting for Perseus on cliffs
Copyrights: Pablo Martinez Alemparte

"A Smile in the Sky" - Solar Halo, Sundogs, Circumzenith Arc
Copyrights: John Chumack

[shtutik]

55 years ago, April 12, 1961 for the first time in human history man made space flight.

It was Yuri Gagarin. After 108 minutes of flight, he landed in the Saratov region, Russia. At the landing site, this monument was erected( 51.270668°, 45.997330°). Above the monument flies the International Space Station.


http://www.astroadventures.ru
Copyright: Yuri Zvezdny

Click to view full size image

[Slawomir]

NGC 3576 and NGC 3603

A narrowband image of the area around NGC 3603 and NGC 3576.
Acquisition info:
4" ED doublet, AZ-EQ6, QSI 690 WSG8, Astrodon 3nm HA, OIII and SII filters, 23 hours of exposure from Paddington in Brisbane, Australia.

Full Resolution: http://www.astrobin.com/full/244211/B/?real=&mod=

Copyright: Slawomir Lipinski

http://cdn.astrobin.com/images/thumbs/5 ... pinski.jpg

[keerthi2kiran]

Look ma... Comet...
Last saturday (Apr2nd), as usual, I went out for Astrophotography. By 2:30AM, moon had risen. I just took some milkyway shots and returned home. As I was processing the images, I saw something green, comet like...
Turns out it is indeed a comet (252/P Linear).
It is now a good time to photograph the comet with the Milkyway. The comet is in Ophiuchus and is moving fast.

[marion165]

Comet 252P/LINEAR and M14
https://flic.kr/p/FUhLJf
Copyright: Marion Haligowski

Comet 252P/LINEAR and M14 by Marion Haligowski, on Flickr

Comet 252P/LINEAR was photographed near the M14 globular cluster in Ophiuchus early in the morning of April 6, 2016. The M14 cluster is seen below and to the left of the comet while the dimmer (10th mag) globular cluster NGC 6366 is seen to the lower right. The image was made of a stack of 38 twenty second exposures with a Canon 70D and a Canon 200 mm f/2.8L lens at f/3.2. (ISO 1000). Tracking was done with an iOptron Sky Tracker.

[philto]

Hello a superb solar eruption today 2016 7th of April
204 mm Ha refractor.
Philippe TOSI

Click to view full size image

[matt.dieterich]

Aurora, Milky Way, and Mount Rainier
URL of website, http://www.mdieterichphoto.com
Copyright: Matt Dieterich
https://c2.staticflickr.com/2/1510/2630 ... f1ce_k.jpg