Submissions: 2015 December

[remidone]

M13 - Hercules Cluster
My album
Copyright: Luca Moretti

Click to view full size image

[Davide Manca]

Van den Bergh 27
Copyright: Davide Manca
Link to full image: http://astrob.in/full/230265/0/

[starhopper62]

NGC1491 + Sh2-206 in Hubble Palette
Total exposure time 31h

Copyright: Dieter Beer and Reinhard Wallner

Data, info and full resolution image (4032x2679

http://www.starhopper.at
http://www.wallnerr.at

[Sandgirl]

VLA Yields New Insights on Solar Flares
Image credits: Chen, et al., NRAO/AUI/NSF, NASA
An article: https://public.nrao.edu/news/pressrelea ... are-shocks

http://asterisk.apod.com/viewtopic.php?t=35434

Pinnacles with zodiacal light
Copyrights: Jingyi Zhang

The Sun could release flares 1000x greater than previously recorded
Image credit: University of Warwick/Ronald Warmington
An article: http://www2.warwick.ac.uk/newsandevents ... _sun_could

http://asterisk.apod.com/viewtopic.php?t=35433

M31
Copyrights: Albert Barr

Space is Dusty
Copyrights: Derek J Demeter

Winter Stars (And Planets)
Copyrights: Dani Caxete

Sun Pillar
Copyrights: Wil van Breugel

Horsehead Nebula Region
Copyrights: John Bozeman, Jerry Gardner
Full size: http://www.keith-engineering.com/pictur ... 465b_o.jpg

The Andromeda Galaxy
Copyrights: Raul Villaverde Fraile

Event Horizon Telescope Reveals Magnetic Fields at Milky Way's Central Black Hole
Image credits: M. Weiss/CfA
An article: https://www.cfa.harvard.edu/news/2015-28

http://asterisk.apod.com/viewtopic.php?t=35435

NASA Space Telescopes See Magnified Image of Faintest Galaxy from Early Universe
Image credit: NASA, ESA, and Pontificia Universidad Católica de Chile
An article: http://www.jpl.nasa.gov/news/news.php?feature=4780

http://asterisk.apod.com/viewtopic.php?t=35424

The most beautiful comets visible in December
Copyrights: Enrico Colzani

[Sandgirl]

Moon Halo with Jupiter and Venus
Copyrights: Greg Hogan

The Moon
Copyrights: Supreet Sachdeva

Curious "Inkblot" star outed for trolling the astronomers
Images credit: Paul Stewart and Peter Tuthill, University of Sydney
An article: http://sydney.edu.au/news-opinion/news/ ... -for-.html

http://asterisk.apod.com/viewtopic.php?t=35437

West before the Sunrise
Copyrights: Rolf Fries

Jupiter, moons and clouds

M45 - The beautiful seven sisters
Copyrights: Efrem Frigeni

Comet Catalina
Copyrights: Greg Hogan

Lunar Occultation of Venus 2007 (top) and 2010 (bottom)
Copyrights: Anthony Ayiomamitis

NGC 7822 and Cederblad 214
Copyrights: Martin Rusterholz

The great Andromeda
Copyrights: Roberto Colombari
Full size: https://c2.staticflickr.com/6/5762/2341 ... 426e_o.jpg

M42
Copyrights: Dan Meek

LBN777
Copyrights: Bob Lockwood
Larger size: http://www.mynightsky.net/Latest/LBN%20777_2015.html

[Sandgirl]

Milky Way panorama
Copyrights: Carlos Fairbairn

Stars above the Momotombo eruption
Copyrights: Osiris Castillo Balitan

Venus, Moon, Mars and Jupiter
Copyrights: Dani Caxete

Comet C/2013 US10 Catalina meets Venus 06-Dec-2015
Copyrights: Ian Sharp

The night sky over Península Valdés, Puerto Madryn, Chubut, Argentina
Copyrights: Sergio Montúfar

The Comet with Two Tails
Copyrights: Brian D. Ottum

Airglow „ribs“ and mysterious Red Sprites
Copyrights: Petr Horálek

[srosenfraz]

LBN 534 (GAL 110-13) and vdB 158 in Andromeda

Copyright Scott Rosen. Website: http://www.astronomersdoitinthedark.com/


Full Resolution Version

LBN 534 (aka GAL 110-13) is a molecular cloud stretching across more than 1 1/2 degrees of sky in the constellation of Andromeda. The cloud is believed to be part of the star forming Lacerta OB1 association and is about 1,400 light years from us. At the southern end of the cloud (bottom in this image) is the blue reflection nebula, vdB 158.

More image information is available at http://www.astronomersdoitinthedark.com ... c=17&p=568.

[srosenfraz]

NGC 1499 - The California Nebula in HaOIIIRGB

Copyright Scott Rosen. Website: http://www.astronomersdoitinthedark.com/



Full Resolution Version

The California Nebula, NGC 1499, is a large HII nebula lying in the constellation of Perseus. The nebula is illuminated by the star, Xi Persei (the bright star just below the main nebula). Although most HII nebulae are illuminated by stars that have formed from within the nebula, Xi Persei did not originate from NGC 1499. Rather, Xi Persei is believed to be a star that was ejected from some other grouping and has "collided" with NGC 1499. These types of stars are known as "runaway" stars.

NGC 1499 is located about 1500 light years away from us in the same Orion arm of the Milky Way that contains our Solar System. The nebula itself is about 100 light years long and covers approximately 4 degrees by 1 degree in the sky (about 8 Full Moons by 2 Full Moons). This image has a field of view a little over 9 degrees by 6 degrees and shows some of the faintest outer parts of the nebula as well as some of the surrounding dusty regions.

More image information is available at http://www.astronomersdoitinthedark.com ... c=17&p=567.

[Antonio Montealegre]

https://www.flickr.com/photos/93110074@ ... ed-public/

[manoss27]

IC 59 and IC 63

Copyright: Manos Malakopoulos
https://farm6.staticflickr.com/5659/227 ... 1028_k.jpg

[orione56]

21 frames of 10 minutes and two sub frames of 15 minutes 800 iso, 10 11 dark bias and 10 flat with Eos 40D camera FS 60 CB Takahashi more flattener TKA20582, autoguider PHD Guiding dithering more on hype AZEQ6 GT SW, preprocessing PixInsight 1.8 , processing Photoshop CS5 plus Topaz-Labs (Denoise5).
Shooting site Mount Catria Italy
http://i68.tinypic.com/2q9kxgn.jpg

[orione56]

.. Made of 14 frames of 10 minutes 800 iso, 10 11 dark bias and 10 flat with Eos 40D camera FS 60 CB Takahashi more flattener TKA20582, autoguider PHD Guiding dithering more on hype AZEQ6 GT SW, preprocessing PixInsight 1.8 , processing Photoshop CS5 plus Topaz-Labs (Denoise5).
Shooting site Mount Catria Italy (PU)

http://i65.tinypic.com/2qmm1rm.jpg

[avdhoeven]

Summer Triangle and Milky Way by Andre van der Hoeven, on Flickr

In this image we see the Summer Triangle as seen from Austria in the summer of 2015.
The image was taken using a Nikon D810a equipped with a Nikkor 14-24mm lens.

The Summer Triangle is a Northern Hemisphere asterism (stars of similar brightness recognized in a distinctive shape). Unlike many other asterisms, the Summer Triangle is actually an amalgamation of stars from three separate constellations.

Three stars make up the triangle: Deneb, Vega and Altair. Deneb is the farthest away from Earth among these three, and is the brightest star in the constellation Cygnus; it forms the tail of the Swan. Coincidentally, Deneb is also the head of another asterism known as the Northern Cross, which is contained in Cygnus.

Vega is the brightest star of an otherwise dim and small constellation, Lyra (the Harp). Vega is one of the brightest stars in the night sky. (Sirius is the brightest in the night sky, but appears in the winter of the Northern Hemisphere.) About 12,000 years ago, it used to be the North Star due to an effect called precession, where the Earth's north-pointing direction changes due to a wobbling axis. Rounding out the asterism is Altair, which is the brightest star in the constellation Aquilia (the Eagle.) Altair is one of the brightest close stars to Earth.

The term Summer Triangle was popularized by American author H.A. Rey and British astronomer Sir Patrick Moore in the 1950s. The name can be found in constellation guidebooks as far back as 1913. The Austrian astronomer Oswald Thomas described these stars as Grosses Dreieck (Great Triangle) in the late 1920s and Sommerliches Dreieck (Summerly Triangle) in 1934. The asterism was remarked upon by J. J. Littrow, who described it as the "conspicuous triangle" in the text of his atlas (1866), and Bode connected the stars in a map in a book in 1816, although without label. These are the same stars recognized in the Chinese legend of The Weaver Girl and the Cowherd, a story dating back some 2,600 years, celebrated in the Qixi Festival. In the mid- to late-20th century, before INS, GPS and other electronic/mechanical equipment took their places in military aircraft, United States Air Force navigators referred to this asterism as the "Navigator's Triangle".

Near midnight, the Summer Triangle lies virtually overhead at mid-northern latitudes during the summer months, but can also be seen during spring in the early morning to the East. In the autumn the summer triangle is visible in the evening to the West well until November. From the southern hemisphere it appears upside down and low in the sky during the winter months.

Source: space.com/Wikipedia

[Astromontufar]

Clouds & Planets.

Jupiter, Mars, The Moon, Venus.

Conjunction 12/07/2015

Image taken with a sony a7 14mm, General Belgrano, Provincia de Buenos Aires, Argentina.

[ManuelJ]

M1, The Crab Nebula by ManuelJ, on Flickr

[Oleg Bryzgalov]

Another double cluster (NGC7788 and NGC7790) in Cassiopeia by Oleg Bryzgalov, on Flickr

[Oleg Bryzgalov]

Cluster Messier 52 in Cassiopeia by Oleg Bryzgalov, on Flickr

[Oleg Bryzgalov]

Cluster Messier 41 in Canis Major by Oleg Bryzgalov, on Flickr

[orione56]

TSA 102 telescope F8 field flattener of TS 2.5 '' Eos 40D camera mod. 800 iso, adding 21X600 seconds from Mount Catria, alignment and calibration PixInsigh 1.8 and elaborated with Photoshop CS5 + Topaz -Labs.







http://i66.tinypic.com/359mie1.jpg

[astrogufo]

Planetary nebula in Cygnus



Carlo Rocchi, Italy

[a.carrozzi]

Come C/2013 US10 Catalina on 8th december 2015
Author: Alessandro Carrozzi

[remidone]

M13 - Hercules Cluster
My album
Copyright: Luca Moretti

Click to view full size image

[Sandgirl]

C/2013 US10 (Dec 5th)
Copyrights: Damian Peach

Integrated Flux Nebula in Pegasus (MBM 50)
Copyrights: Álvaro Ibáñez Pérez

Milky Way rising over the Teide National Park, Tenerife, Spain
Copyrights: Javier Martínez Moran

Milky Way from China
Copyrights: Gallon Weng

New Horizons Returns the First of Its Very Best Images of Pluto
Credits: NASA New Horizon
An article and more pictures: http://pluto.jhuapl.edu/News-Center/New ... e=20151204

MountainousShorline.jpg (38.61 KiB) Viewed 7548 times

http://asterisk.apod.com/viewtopic.php?p=251088#p251088

ALMA Spots Monstrous Baby Galaxies Cradled in Dark Matter
Credit: ALMA (ESO/NAOJ/NRAO)
An article: http://alma.mtk.nao.ac.jp/e/news/pressr ... atter.html

http://asterisk.apod.com/viewtopic.php?t=35440

2014 Geminid Meteor Shower
Copyrights: Wang Letian

Catalina, Moon, & Venus
Copyrights: Greg Hogan

Comet Catalina anatomy
Copyrights: Borja Tosar

Venus Occultation
Copyrights: Greg Hogan

Dark Clouds of LDN 204
Copyrights: Samuel Lising

Venus Occultation with Jet and Contrail
Copyrights: Dave Lane

Pickering's Triangle
Copyrights: Bob Franke
Larger version: http://bf-astro.com/APOD/PickTriangleBig.jpg

Comet Catalina, Moon and Venus
Copyrights: Stephen Mudge

[philto]

Hi to all.
here my solar bestof 2015 / 204 mm H-alpha refractor
regards
© Philippe TOSI

Click to view full size image

[moonrocks]

IC443 The Jellyfish Nebula

http://moonrocksastro.com/wp-content/up ... 0x1044.jpg
Copyright: Paul C Swift

Click to view full size image