Submissions: 2017 May

See new, spectacular, or mysterious sky images.
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Re: Submissions: 2017 May

Postby Sandgirl » Thu May 11, 2017 7:16 pm

NGC 3718, 3729, and Hickson Group 56
Copyrights: Phil Keyser
NGC 3718-Final_jpg.jpg

M51 Whirlpool Galaxy
Copyrights: Kerry-Ann Lecky Hepburn


Copyrights: Daniel Coyle

Markarian's Chain
Copyrights: Dan Meek
Markarian's Chain_APOD_jpg.jpg

Lagoon Nebula
Copyrights: Tolga Gumusayak and Mike Selby
6671ec5c0d008030e09484190d236157.1824x0_q100_watermark_watermark_opacity-75_watermark_position-6_watermark_size-S_watermark_text-Mike Selby & Tolga Gumusayak_small.jpg

M51 - The Whirlpool Galaxy
Copyrights: Bernard Miller

Copyrights: Mohammad Bagher Mireskandari

Ancient Ground, Modern Sky
Copyrights: Amirreza Kamkar

Milky Way over Nuclear Silos
Copyrights: Steven Crowley

M31 - The Andromeda Galaxy
Copyrights: Oliver Czernetz
Full size:
M31_DSS_ DSW2_small.jpg

Copyrights: Marco Meniero

Conjunction of Moon and Jupiter
Copyrights: Marco Meniero
Congiunzione Luna Giove David_small.jpg

Rho Ophuchi
Copyrights: Adam Jesionkiewicz

Center of the Milky Way over national monument inverted tulips
Copyrights: Ahmad Riahi
Laleh-Vajgoon National Natural Monument-_small.jpg

Green Ray
Copyrights: Sergi Luque
Green Ray_small.jpg

Copyrights: Tamas Ladanyi

Milky Way over Monument Valley
Copyrights: John Vermette

Iris of the Moon
Copyrights: Wolfgang Neszmerak (Wolfman)
Iris Of The Moon 2_small.jpg

Nearby Red Dwarfs (May 2nd.)
Copyrights: Damian Peach

M97 Owl Nebula
Copyrights: George Chatzifrantzis
m97 final crop name_small.jpg

Jupiter & Moon Company
Copyrights: G. Chatzifrantzis
moon jupiter 2_small.jpg

Sun Halo
Copyrights: G&L

Messier 1
Copyrights: Remi Lacasse

M13 - The Great Globular Cluster in Hercules
Copyrights: Álvaro Ibáñez Pérez

Copyrights: Melina T
penguin galaxy_jpg.jpg

Moon and Jupiter Conjunction at Daylight
Copyrights: Mohsen Salahshoor Ch.
Beroflex 300mm_small.jpg

Respecting the Night Sky – Milky Way above Cumeada Observatory, Dark Sky Alqueva
Copyrights: Miguel Claro
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NGC 7000 and NGC 5070

Postby alcarreño » Thu May 11, 2017 8:06 pm

Copyrights: Raul Villaverde Fraile
ImageNGC7000_NGC5070REPROCESADO by Raul Villaverde, en Flickr

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Re: Submissions: 2017 May

Postby Valtori » Fri May 12, 2017 12:20 pm

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SMC - Continuumsubtraction

Postby FrankSackenheim » Fri May 12, 2017 9:21 pm


i gave a try on whats called continuumsubtraction. I´ve heard this term for the first time from british astrophotographer Paul Beskeen. The Idea is to subtract an image of a continous spectrum from a narrowband image, to qualify the real narrowband emitter. This is a "Poor Men´s Method" as professional astronomers do it a little bit more complex (see papers on continuumsubtraction from science archives).

Well here is what i got. I present a RGB (OIIIHa) image as well as the continuum subtracted Ha and OIII Images, and an colormix of both oh them. Also i link an annotated image.

Image ... SMC_KS.jpg

Image ... HaOIII.jpg

Image ... SMC_Ha.jpg

Image ... C_OIII.jpg

Image ... otated.jpg

Kiripotib Guestfarm Namibia
June/July 2016
Takahashi FSQ 106 ED
Moravian G3-16200
Vixen New Atlux an Tak EM200
Ha 6000 s
OIII 10800 s
RGB 3600 s each

CS Frank

Petr H.
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Re: Submissions: 2017 May

Postby Petr H. » Fri May 12, 2017 11:02 pm

Optical corona around Jupiter
Copyright: Petr Horálek
More info and the image in higher resolution:

Petr H.
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Re: Submissions: 2017 May

Postby Petr H. » Fri May 12, 2017 11:04 pm

Jupiter and five moons
Copyright: Petr Horálek
More info and the image in higher resolution:

Re: Submissions: 2017 May

Postby » Sat May 13, 2017 10:09 am

Copyright: John Ebersole

The complex ionic structure of M17 is nicely detailed in this narrowband image in HST palette.

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Re: Submissions: 2017 May

Postby AstroScience » Sat May 13, 2017 12:43 pm

NGC3718. NGC3729, Hickson 56 Group
Copyright: Sergio Kaminsky
16 Hours deep field of those peculiar galaxies from Negev Desert.

NGC3718 (Face and Flickr).jpg
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Re: Submissions: 2017 May

Postby Deep-Sky-Astroteam » Sun May 14, 2017 5:46 pm

IC 417 The Spyder and The Fly
Copyright: Jens Zippel & Frank Iwaszkiewicz
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Re: Submissions: 2017 May

Postby Sandgirl » Sun May 14, 2017 9:35 pm

Moon and Jupiter
Copyrights: Divyadarshan Purohit

Milky Way over the Great Wall of China
Copyrights: Steed Yu &

Night sky over Greece
Copyrights: Petros Kaznesis
DSC_0223 2 NR 3_small.jpg

Persistent Trail of a Lyrid Fireball
Copyrights: Guillaume Doyen

Jupiter, GRS, and 3 moons 05-07-2017
Copyrights: John Chumack

Gamma Cygnus Nebula
Copyrights: Eric Coles
Gamma Cygnus Nebula RGB_SHO_small.jpg

An Edge-on Galaxy
Copyrights: Wei-Hao Wang
Largier size:

Jupiter and 5 moons
Copyrights: Petr Horálek

Moon and Jupiter conjunction
Copyrights: Alireza Sadeghi

The Sun
Copyrights: Daniel Baraldés
20170508 Sun.jpg

Milky Way
Copyrights: Sarang Shah



Copyrights: Sarang Shah

Milky way in San Quirico d ‘Orcia, Tuscany, Italy
Copyrights: Luca Monteleone
unnamed (1).jpg

Jupiter and Moon Conjunction
Copyrights: Mohammad Reza Rastin
moon and jupiter_small.jpg

Planetary Alignment in May 2002, 15 years ago
Copyrights: Len DiPinto
Planetary Alignment May 2002_small.jpg

Conjunction of Moon and Jupiter
Copyrights: Francisco Soldán
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Re: Submissions: 2017 May

Postby astrosirius » Sun May 14, 2017 10:00 pm


M106 also known as NGC4258 Is a galaxy in the constellation Canes Venatici. It is about 25 million light years away, and approximately 130,000 light years across. The unusual central glow makes M106 one of the closest examples of the Seyfert class of galaxies where vast amounts of glowing gas are thought to be falling into a central massive black hole.

M106 has a water vapor megamaser (the equivalent of a laser operating in microwave instead of visible light and on a galactic scale) that is seen by the 22-GHz line of ortho-H2O that evidences dense and warm molecular gas.

It is one of the largest and brightest nearby galaxies, similar in size and luminosity to the Andromeda Galaxy.

M106 has also played an important role in calibrating the cosmic distance ladder. Before, Cepheid variables from other galaxies cannot be used to measure distances since they cover ranges of metallicities different from the Milky Way's.

Copyright: Lluis Romero
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Re: Submissions: 2017 May

Postby moonrocks » Mon May 15, 2017 6:33 am

M101: The Pinwheel Galaxy - reminiscent of Fibonacci's sequence, the Golden Ratio.

Image here: ... axy-25.jpg

Copyright: Paul C. Swift

ImageM101: The Pinwheel Galaxy by Paul C. Swift, on Flickr

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Re: Submissions: 2017 May

Postby shtutik » Mon May 15, 2017 9:28 am


The image shows the central part of the Galaxy. The brightest part of the Milky Way sandwiched between the constellations of Scorpio, Sagittarius and Ophiuchus. Here is the highest concentration of stars and dust clouds. We can also see a lot of red hydrogen nebulae.

Canon 550Da + 24-105L, 24mm, f/4, iso 1600, 2 min.

Author's site:
Copyright: Yuri Zvezdny

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Re: Submissions: 2017 May

Postby ashtree » Mon May 15, 2017 7:25 pm

The Great Eruption in the constellation of Carina
Copyright: Adam Jesionkiewicz

Hi resolution version is here:


In 1827 Burchell specifically noted Eta Carinae's unusual brightness at 1st magnitude, and was the first to suspect that it varied in brightness. John Herschel made a detailed series of accurate measurements in the 1830s showing that Eta Carinae consistently shone around magnitude 1.4 until November 1837. On the evening of December 16, 1837, Herschel was astonished to see that it had brightened to slightly outshine Rigel. This event marked the beginning of a roughly 18-year period known as the Great Eruption.

Eta Carinae is probably the greatest treasure of the southern sky. It is also the first object on which you will direct your telescopes if you want to admire its beauty. Moreover, to see the surrounding nebula, you do not really need anything. Under good conditions it is visible to the naked eye.

A star, located 7,700 light-years from Earth, is actually a stellar system composed of at least two components. Their mutually reinforced glow is millions of times brighter than our Sun, and is primarily responsible for lighting up the surrounding matter. It is finally one of the most beautiful nebulas you can observe. It's called Carina. Like other objects of this type, it is a active star-forming region.

It is difficult to find in the sky a more diverse object to observe. You will find reflection, emission, dark, dust, and other nebulae in it. All this you can see on my photo taken in the multi-spectral technique (gathering light emitted by ionized gases: oxygen, hydrogen and sulfur).

This picture cost me a lot. 12 thousand kilometers and 72 hours of travel. 3 nights struggle to collect photons. 15 hours of raw material processing. The result is a photograph that I undoubtedly point to as the groundbreaking and best astrophotography of my decade-long career. In this field, achieving the level of the image we dreamed up is extremely difficult. This time I have the impression that I look at the picture exactly what I wanted to do.

When working with narrowband filters, then trying to balance them in a graphical application, is such a magical moment when the monochrome picture blossoms with a color gamut. This is the moment in which the author himself cannot admire the scale of beauty of cosmic creation. Because we do not create it. Modestly we only record and interpret.

The work, however, is not ours.

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Re: Submissions: 2017 May

Postby Sandgirl » Mon May 15, 2017 8:37 pm

Copyrights: Jerry Keith

VdB 152 - Wolf"s Cave
Copyrights: Bob Franke
Larger size:

Crater Posidonius
Copyrights: Francesco Badalotti

Heart Nebula
Copyrights: Jean M Dean
Larger size:
unnamed (1).jpg

Clavius Crater Close-up
Copyrights: John Chumack

Starburst Galaxy M82
Copyrights: Steve Cooper

M81, M82, NGC3077 and IFN
Credits and Copyrights: Data: R. Colombari / C. Iaffaldano; Processing: R. Colombari
Full size:

Copyrights: Ewa Zegler-Poleska

22 Degree Sun Halo Near Shiraz, Iran
Copyrights: Amir Shahcheraghian

Copyrights: Raul Villaverde Fraile
Iris fieldv4new.jpg

Hand of the Desert
Copyrights: Carlos Eduardo Fairbairn

Messier 81 & Messier 82 with the Integrated Flux Nebulae
Copyrights: Rafael Schmall

Winter nebula season is almost over
Copyrights: Steve Cannistra

Jupiter's corona
Copyrights: Petr Horálek

Eta Carinae Nebula
Copyrights: Samuel Müller

Rho Ophiuchi could complex
Copyrights: Samuel Müller

Moon and Jupiter
Copyrights: Ian Timberlake

Lago Atitlán, under a young Milky Way
Copyrights: Sergio Montúfar
T-4 The Sacred Site_small.jpg

Copyrights: Dieter Willasch

Crazed Earth
Copyrights: Steve Cullen
unnamed (2).jpg

The Moon and a passerby
Copyrights: Michael Doherty

Full Moon rising next to Adolfturm in Friedberg
Copyrights: Ulrich Beinert
unnamed (3).jpg
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Ian Regan

Re: Submissions: 2017 May

Postby Ian Regan » Tue May 16, 2017 7:33 pm

Cassini's "Grand Finale" Saturn Portrait (April 13, 2017)
Cassini's "Grand Finale" Saturn Portrait (April 13, 2017) Ian Regan

In the early hours of April 13, 2017, a veteran NASA probe captured this breathtaking and unique visage of the Saturnian system as it coasted through space in the shadow of the gas giant.

Using its Wide-Angle Camera (part of the Imaging Science Subsystem), Cassini snapped 96 individual digital photos: these images consisted of Red, Green, and Blue-filtered frames, covering a total of 32 ‘footprints’. These 32 color frames were painstakingly combined to produce the final mosaic.

The veteran spacecraft took nearly four hours to collect these data. In that time, Cassini was slowly cruising away from the planet, en route to apoapse (the point farthest from Saturn in any given orbit) of Revolution 269. The distance to the planet increased by 82,000 km in that time, and in the end, the distance to the cloud-tops equalled 650,040 km.

All components of the main ring system are visible, seen here illuminated from behind: a vantage point technically known as a ‘high-phase angle’. In this geometry, a peculiar reversal happens: the thinner and more translucent rings shine out brightly, while the more opaque and thicker regions are relatively dark.

Only two moons — Janus and Mimas — can be picked out in this uncalibrated and compressed data, in addition to a red-giant star in the constellation of Gemini: Tejat (μ Gem).

Credit: NASA/JPL/Caltech/SSI/Ian Regan

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Re: Submissions: 2017 May

Postby Sandgirl » Tue May 16, 2017 8:33 pm

Zodiacal Light Over Horseshoe Bend
Copyrights: Dave Lane
HSB 3-1 Final 4x3 flat_small.jpg

The Galaxy and the Keck Dome
Copyrights: Jiajie Zhang
IMG_0193_merge Panorama_0 small wm_small.jpg

Milky Way
Copyrights: Mahdi Alinejad

Driving across 'The Bay of Rainbows'
Copyrights: John Chumack

A Solar Eclipse on the Moon (Artist impression)
Copyrights: Andrew Bodrov

The Moon
Copyrights: Noëlle Drtil

The Sun exhales, A perspective
Copyrights: Barry Riu
Sun-spreading-prom,- 80pix earth,copyright.jpg

The colorful Rho Ophiuchi region
Credits and Copyrights: Data: DSS-2, R. Colombari; Assembling and processing: R. Colombari
Full size:

NGC 2070 Tarantula Nebula
Copyrights: Francesco Badalotti
NGC 2070 Tarantula Nebula send to APOD - Asterisk.jpg

Buddha Purnima Moon /Full Moon Sets over Delhi
Copyrights: Abhinav Singhai

The Eta Carina Nebula
Copyrights: Haim Huli
Larger size:

IC 434
Copyrights: Domingo Pestana, Nicolás Romo and Raúl Villaverde
IC 434-Domingo Pestana-Nicolas Romo-Raul Villaverde_small.jpg

Rho Ophiuchi
Copyrights: Leonardo Ciuffolotti, Matteo Collina, Riccardo De Benedictis, Giuseppe Donatiello and Rolando Ligustri
Rho Oph Hi-res V1_small.jpg

C/2015 ER61(PanSTARRS) on May 9th
Copyrights: Damian Peach

Star trails and Siding Spring comet from Australia
Copyrights: Christian Sasse
Startrails Siding Spring_small.jpg

Flower Moon with a wild photographer
Copyrights: Alyn Wallace
unnamed (1).jpg

The Creature in the Clouds of Southern Skies
Copyrights: Adam Jesionkiewicz

ISS and Moon
Copyrights: Dani Caxete
unnamed (2).jpg

From Vela to Centaurus
Copyrights: Mario Cogo

NGC 3324
Copyrights: Mario Cogo
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Re: Submissions: 2017 May

Postby Sandgirl » Tue May 16, 2017 8:48 pm

The zodiacal light and winter Milky Way
Copyrights: Derrick Lim

Copyrights: Rafael Rodríguez

Rosette Nebula
Copyrights: Steven Mohr
Steven Mohr - Rosette Nebula - LHaRGB_small.jpg

NGC 7742, a galaxy in the constellation Pegasus
Credits and Copyrights: Data: Hubble Legacy Archive; Processing: Gregorio Montero Gil

Herbig Haro
Copyrights: Sara Wager
Herbig haro label mono_small.jpg

NGC 7000 and NGc 5070
Copyrights: Raul Villaverde Fraile
NGC7000_NGC5070REPROCESADOEstrellas corregidas.jpg

More water than earth
Copyrights: Sergio Galán
Sergio GalanSanchis_Photo of the Day NASA 10.jpg

Sergio GalanSanchis_Photo of the Day NASA 11.jpg

Storm flashers
Copyrights: Sergio Galán

A non conventional star trail
Copyrights: Christian Cammoraensi
teodora star trail jpg for apod_small.jpg

Copyrights: Klaus Rübke

Many faces of Saturn
Copyrights: Ian Griffin

Copyrights: José Ramos
Pareidolia 1400x new wmark_small.jpg

Half of the Moon and Lunar X in a Craters Show
Copyrights: Miguel Claro

C/2015 V2 (Johnson) on May 1st
Copyrights: Damian Peach

Milky Way over the church
Copyrights: Jorgelina Alvarez
La Iglesia 2_small.jpg

NGC 7635
Copyrights: Geoffrey Graham
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Re: Submissions: 2017 May

Postby tommy_nawratil » Wed May 17, 2017 12:20 am

a sunflower galaxy M63 with good depth, taken from suburban sky near Vienna.
Moravian G2-8300 and 10" f/4 Lacerta photonewton


for full size and data please visit

clear skies, Tommy

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Re: Submissions: 2017 May

Postby Sandgirl » Wed May 17, 2017 6:53 pm

RCW89 and SuperNova Remnant
Copyrights: Don Goldman
Full size:

Jupiter and Galileian moons
Copyrights: Bijan Moravej

Lyrids Meteor Shower & startrail
Copyrights: Bijan Moravej

The Saturn Family Portrait
Copyrights: John Chumack
Sat_Moons082118UT_130517_Chumack wideFinal2kweb_small.jpg

Sat_Moons082118UT_130517_Chumack wideHrweb)small.jpg

Jupiter and its moons on 16/05
Copyrights: John Chumack

Small and Large Magellanic Clouds, with an inactive volcano inbetween
Copyrights: Carlos Eduardo Fairbairn
Carlos Fairbairn - Two Magelanic Clouds - Atacama Desert Chile APOD_small.jpg

The Great Eruption in the constellation of Carina
Copyrights: Adam Jesionkiewicz

Galaxy Cluster ESO 146-5
Credits and Copyrights: Data: Hubble Legacy Archive; Processing: Domingo Pestana
ESO 146-5 - Domingo Pestana_small.jpg

Moon-Jupiter, 7th May
Copyrights: Francisco José Sevilla

Variable Winds on Hot Giant Exoplanet Help Study of Magnetic Field
Image credits: PSI
An article: [url]Variable Winds on Hot Giant Exoplanet Help Study of Magnetic Field[/url]
fp_tami rogers NATASTRON-S41550-017-0131_2nd Proof.jpg

IC 1396 - Elephant trunk nebula
Copyrights: Justin Daniel
Elephant 1 (1 of 1)_small.jpg

Recent Singapore Airlines Lunar Transit
Copyrights: Michael Marston

Comet C/2015 ER61 PANSTARRS after outburst
Copyrights: José J. Chambó

Moon close to Saturn on May 13th
Copyrights: Christian Koll
Moon with Saturn_small.jpg

Moonbow and stars at Yosemite Falls
Copyrights: Tony Rowell
Moonbow and stars at Yosemite Falls Tony Rowell_small.jpg

June Solstice
Copyrights: Raymond Brooks
Solstice cropped_j.jpg

Red Moonrise composite
Copyrights: Laszlo Beinrohr
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Re: Submissions: 2017 May

Postby astronut2007 » Thu May 18, 2017 8:52 pm

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Re: Submissions: 2017 May

Postby carlosdn » Thu May 18, 2017 10:27 pm

The moon in colors shows us its minerals

Moon 16.05.2017 - Avellaneda - Argentina

© Carlos Di Nallo

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Re: Submissions: 2017 May

Postby carlosdn » Fri May 19, 2017 2:08 am

Saturn 16.05.2017

Telescope: Maksutov 150/1800

Canon 6D + barlow 2x

Avellaneda - Argentina

© Carlos Di Nallo
Last edited by carlosdn on Fri May 19, 2017 2:20 am, edited 1 time in total.

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Re: Submissions: 2017 May

Postby carlosdn » Fri May 19, 2017 2:19 am

Venus 17.05.2017

Telescope: maksutov 150/1800

Canon 6D + barlow2x

Avellaneda -Argentina

© Carlos Di Nallo

Adrien Mauduit
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Re: Submissions: 2017 May

Postby Adrien Mauduit » Fri May 19, 2017 8:42 am

Capella rising

Credits: Adrien Mauduit

Capella, actually composed of four stars, situated in the Auriga constellation is the 3rd brightest star in the northern celestial hemisphere, and the 11th in the whole night sky. As the picture suggests, it rises just above the northern horizon at this time of year in Denmark. I took the shot at 2:30 am on May 18th 2017 on Høve beach in Odsherred, as we were transitioning from the astronomical dawn into the nautical dawn. As I was looking for a sign of noctilucent clouds, even the highest cirrus reflect some of the light emanating from the sunrise hundreds of km from there. Notice of they seem to make the night sky glowing and alive!

Canon 6D modded + Sigma 50mm f/1.4 Art @ f/2.8, 9 x 5'' @ ISO 800, PTGui Pro + Lr/Ps.
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