Starship Asterisk*

geckzilla wrote:That's really cool that you've uncovered a secret structure there, Petr. No doubt many subtleties could be revealed if only we could turn off the Milky Way for a moment.

Indeed But seriously, it would be really interesting to have some satellite shot of zodiacal light from inside if the plane in high resolution.

Montes Alpes and Vallis Alpes in great resolution
This image is a mosaic of files that show all the greatness of the mountain range called "Montes Alpes". On the right, there is the famous valley "Vallis Alpes" (https://en.wikipedia.org/wiki/Vallis_Alpes) with his rhyme well settled in the middle. Everything has been taken up at very high resolution and highlights many structures often not visible from amateur telescopes. On the right side of the valley there is the beautiful flat crater "Egede" with inside many small craters and details.

Setup:
Canopus newton 18"
Point Grey camera GS3
Barlow Televue Powermate 5X
Baader green filter
Location:
Bargone (Genova) Italy
2016 March 19 21:56 U.T.

Milky Way And Runners
Jaime E. Díaz

Your zodiacal light image is great, Petr H, but tell me something. Is all of it in color? The Milky Way looks very colorful in your image, but the rest appears to be (almost) black and white.

What is the bright source near the top in your image?

Ann

Copyrights: Amit Ashok Kamble
http://facebook.com/amitkamblephotography

Info: Looking into infinity.

With its sweeping horns of nebulosity, this lovely nebula resembles an Ibex (Mountain Goat) and is located in Carina, right next to the Southern Cross.
Copyright: Michael Sidonio
Larger image here: http://www.pbase.com/strongmanmike2002/ ... 2/original

Messier 105, NGC 3384 and NGC 3373 Galaxy Triplet in Leo

The galaxies M105, NGC 3384 and NGC 3373 form a nice galactic triplet in the constellation Leo. M105 is the elliptical galaxy on the top of the image, NGC 3384 is the elliptical galaxy on the left and NGC 3373 is a spiral galaxy on the lower right. This is a 5-minute exposure using 30-second sub-frames at ISO 3200. Equipment included a Canon 6D + Antares Focal Reducer at prime focus of my Meade 12” LX-90, both mounted on a Celestron CGEM DX mount. Imaging session was on April 24, 2016.

Magnitudes for these galaxies are 9.3 for M105, 10.0 for NGC 3384 and 11.8 for NGC 3373. Distance to these galaxies are roughly 30+ million light years.

hola a todos
os dejo algo del sol de hoy
como siempre los medios son
telescopio: PST
cámara: DMK31AU03.AS
y la lente de barlow que tiene el ocular de 13 mm. del HYPERION
son 400 frames por toma
procesado con registax 3
saludos
jose

hola a todos
os dejo algo del sol de hoy
como siempre los medios son
telescopio: PST
cámara: DMK31AU03.AS
y la lente de barlow que tiene el ocular de 13 mm. del HYPERION
son 400 frames por toma
procesado con registax 3
saludos
jose

GUM19/20
Copyright: Wolfgang Promper http://www.astro-pics.com/gum19m.html

GUM15
Copyright: Wolfgang Promper http://www.astro-pics.com/gum15m.html

NGC6250
Copyright: Wolfgang Promper http://www.astro-pics.com/6250m.html

IC2944
Copyright: Wolfgang Promper http://www.astro-pics.com/2944nbm.html

Arp 286 Galaxy Group
Copyrights: Ron Brecher Planets, Comet & Milky Way
Copyrights: Sergio Montúfar NGC3372 in Carina
Copyrights: Ivan Bok Milky Way arch over the Parque Nacional del Teide, Tenerife, Spain
Copyrights: Javier Martínez Morán A Beautiful Instance of Stellar Ornamentation
Image credits: ESO
More about: http://www.eso.org/public/news/eso1616/ http://asterisk.apod.com/viewtopic.php?t=35946

Mars, Saturn and Antares beside Milky Way
Copyrights: Wang Letian Bode’s Galaxy
Copyrights: Thomas Lelu Milky Way and planets
Copyrights: Lóránd Fényes Milky Way over Little Hunter’s Beach
Copyrights: Kevin Jordan Mare Nectaris
Copyrights: Francesco Badalotti Nice Sunspot
Copyrights: John Chumack Sunset and Moonset - composite image
Copyrights: Jedrek Burakiewicz Sh2-82 (Little Cocoon Nebula) and Collinder 399 (Brocchi's Cluster, the Coat Hanger)
Copyrights: Maurice Toet Milky Way above Podskalsky Rohac (Slovakia)
Copyrights: Ondrej Kralik Milky Way
Copyrights: Tunç Tezel Walking to the beach
Copyrights: Antonio Peña

Lews Castle Startrail
Copyrights: Giuseppe Petricca Milkyway Galaxy over Tuscany, Italy
Copyrights: Arpan Das Green flash at sunset during Mercury transit
Copyrights: Filipp Romanov First evidence of icy comets orbiting a sun-like star
Image credits: Credit: Amanda Smith, University of Cambridge
An article: https://www.cam.ac.uk/research/news/fir ... -like-star http://asterisk.apod.com/viewtopic.php?t=35966

Stellar cannibalism transforms star into brown dwarf
Image credits: Rene Breton
An article: http://www.southampton.ac.uk/news/2016/ ... dwarf.page http://asterisk.apod.com/viewtopic.php?t=35965

Mercury Transit near Sunspot 2543 on 05-09-2016
Copyrights: John Chumack Montes Alpes and Vallis Alpes
Copyrights: Raffaele Barzacchi Waxing Gibbous Moon
Copyrights: A Kannan Milky Way over the Cajas national Park
Copyrights: Sandro Santander Medina Eridanus Loop
Copyrights: Peter Erdman Lenticular Cloud and the Milkyway over Arenal Volcano, Costa Rica
Copyrights: Sergio Vindas Cat's Eye
Copyrights: Josh Smith Solargraphy from Sao Paulo, Brazil
Copyrights: Luciana Silva New Horizons Collects First Science on a Post-Pluto Object
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
An article: http://pluto.jhuapl.edu/News-Center/New ... 20160518-2 http://asterisk.apod.com/viewtopic.php?p=257707#p257707

Mars, Saturn and Milkyway 2016
Copyrights: Frank A. Rodriguez (AstroEduca.com) TSE 2016 Indonesia
Copyrights: Don Sabers Milky way and meteor over Huangshan
Copyrights: Jeff Dai Apennine Caucasus Moon Mosaic
Copyrights: Phillip A Cruden

Bird transit across the Sun

Raw video: https://www.youtube.com/watch?v=yU1y1a1CdO8
Copyright: sky_is_not_thelimit

Active region 2546 in white light and h-alpha bands.
Copyrights: Łukasz Sujka

Parameters of photos:
1) H-alpha >> TS 102/1100 + etalon from Lunt50ThaPT + BelOptik ERF102 + PG Chameleon 3 + barlow TV x2
2) WL >> TS 102/1100 + Baader ND3,8 + Baader SC + PG Chameleon 3 + barlow TV x2



full resolution: http://www.astrobin.com/full/249878/None/
page: https://www.facebook.com/lukasz.sujka.a ... 0265371704

Mars at opposition
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne / Emil Kraaikamp / François Colas / IMCCE / OMP / S2P FOr the 2016 opposition, the Pic du Midi has observed Mars. It was less than 2 days before D day.

Pic du Midi support Junocam
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne / François Colas / IMCCE / S2P / OMP Just one week after the great workshop at Nice (France) to plan the terrestrial support for Juno, the Pic du Midi start to observe the giant. This picture was done with the 1 meter telescope of the Pic du Midi Observatory.

Encke Gap seen from the ground
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne / E Kraaikamp / François Colas / IMCCE / S2P / OMP

[img2]http://www.astrosurf.com/eternity/temp/ ... IL.jpgimg2]

Encke gap is known to be very hard to see inside the Saturn's rings. Despite the low elevation of the giant here in France (20°), the great 1 meter telescope is able to see the gap all aroud the ring. It may be the first time that it's observed like this with a 1 meter class telescope.

Nights with 3 great plantes
http://astrophotography.fr/
Copyright: Jean-Luc Dauvergne / E Kraaikamp / François Colas / IMCCE / S2P / OMP
These days, we have the lucke to have 3 planets visible in the sky. All of them are nearly at the best place to se wonderfull images in our telescopes.
These 3 images have been done the same night at the Pic du Midi Observatory.

When I first saw the illustration at left of the sun-like star that has comets orbiting it, I thought that the star looked as red as a carbon star. At right you can see an example of a carbon star, T Lyrae. Its color varies, but may be as red B-V = +5.5. HD 161327, on the other hand, belongs to spectral class F5 and has a B-V index of +0.48. The difference is huge.

If HD 181327 had been as red as T Lyrae, there would be no way that its system of comets, illuminated by the light of their sun, would look blue.

I realize that many people are terribly tired of my ever-recurring complaints about the color of astronomical images, and I realize that I'm sensitive to such things bordering on the hysterical. At least I can accept that mapped color images of phenomena emitting their energy at wavelengths outside the visual spectrum can never be "realistically colorized". So in such instances, complaining about the colors of an out-of-the-visual-spectrum image is like griping that the portrait of an atom doesn't make it look like the Solar system. Yeah, right.

But when it comes to the illustration of HD 181327, there is no reason why this should be seen as "mapped color". Instead, the picture flatters the public misunderstanding that hot sources like stars should look red, and cold sources like ice should look blue.

At the very, very least, the picture could have shown HD 181327 looking yellowish, like in this (rather red) zimmer.csufresno.edu portrait of F5-type star Mirfak.

Ann

Hi,

I want to share a widefield image of M51 under good seeing conditions. Please click on the image for full resolution samples. I am puzzle with NGC5198, it shows a dimm structure similar to a tidal tail, I haven't found any information about it but inspecting the raw frames I can confirm that the structure is not a processing artifact.

More info: https://mtanous.wordpress.com/m51/
Copyright: Scott Johnson, Daniele Malleo, Rick Stevenson, Bret Charles, José Mtanous and John Kasianowicz

Central Crop


Full field


NGC5198 and "tail"


Clear Skies!

Starry sky above the alive mineral rivers of El'ton

Author's site: http://www.astroadventures.ru/
Copyright: Yuri Zvezndy

Solitude and reflection in the dark

Salt lake El'ton.

Author's site: http://www.astroadventures.ru/
Copyright: Yuri Zvezndy