Starship Asterisk*

NGC 772 with integrated flux
Copyright: Stefan Westphal

More Data can you see here: http://www.astrobin.com/283044/

Glacier "White stones"

Argentina, Patagonia

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

Gegenschein over Cerro Negro, Atacama

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

NGC 3324
Gabriela Mistral Nebula
HaRGB
120 - 8 - 4 - 4 (minutes)
Total: 136 minutos
TS 115/800
ZWO ASI 1600 Mono Cooled

Trails Of Lights And Fires On Mount Etna 2 - Unesco World Heritage Site
dariogiannobile.com
Copyright: Dario Giannobile Sicily - March 2017, The Volcano Etna woke for the second time in a month.
According to Greek mythology, Hephaestus was the craftsman and smith of gods.
The ancient Greeks and Sicilians believed that he had his abode and his forge under the volcano Etna and that the eruptions were the proof of his mighty work.

From ct.ingv.it: "On the morning of 15 March 2017, a new eruptive episode started at Etna's Southeast Crater. The eruptive vent was located in the area of the former "saddle" between the southeast Crater (SEC) and the New Southeast Crater (NSEC). In the early morning hours of 15 March, a small lava flow started oozing down the south flank of the SEC-NSEC cone complex. Then the eruptive activity rapidly intensified with nearly constant Strombolian explosions that generated amounts of volcanic ash dispersed in the atmosphere. The lava flow had reached the base of the cone and was slowly expanding on the gently sloping terrain toward south.”

The landscape was enlightened by the gentle light of the Moon showing the “Sciara”, the black volcanic, rocks covered by a thick layer of snow.
From the top crater a fountain of lava left traces on the sky in front of a curtain of gentle lights pictured by the stars rotating around Polaris.

Dario G

ildiora wrote:Trails Of Lights And Fires On Mount Etna - Unesco World Heritage Site
http://www.dariogiannobile.com
Copyright: Dario Giannobile

Click to view full size image

...........

After publishing the image I discovered that small earthquakes were recorded in the picture as a consequence of the Strombolian activity!
Here is a detail that shows the volcanic tremor as can be seen in the star trails that appear not regular and smooth!!!
Dario

Copyright: Sebastian Voltmer
http://www.astrofilm.com



Comet Hale-Bopp on April 4, 1997 above the Dom with an elevation of 4,545 m. The Dom is the highest mountain located entirely on Swiss territory. 15 sec exposure on Kodak EPP 100 (hypersensitized) using a 50 mm f/1.7 lens, taken from Gornergrat (3,150 m), Switzerland.

Enlarge:
https://www.flickr.com/photos/spacemovi ... 969484470/

Copyright: Sebastian Voltmer
http://www.astrofilm.com
https://c2.staticflickr.com/2/1491/2465 ... f9_c_d.jpg

High resolution with captions:
https://c2.staticflickr.com/2/1640/2494 ... e2_b_d.jpg

Ha: 17x300sec, R: 16x180sec, G: 16x180sec, B: 3x180sec

OTA: Takahashi FSQ ED
Focal Length: 530mm (f/5.0)
CCD: FLI Microline 16803
Mount: Paramount PME
Location: Siding Spring Observatory / iTelescope.Net

edit (bystander): Labeled Version - https://www.flickr.com/photos/spacemovie/24942093651

Copyright: Sebastian Voltmer
http://www.astrofilm.com



All sizes on Flickr:
https://www.flickr.com/photos/spacemovi ... 258904996/

The Lunar south pole with the Leibniz Mountains, Crater Moretus and Crater Clavius.
Aug 24, 2016

Instrument: C11 EdgeHD
Camera: QHY5LII
Filter: R610nm
Location: Spichren, France

All sizes on Flickr:
https://www.flickr.com/photos/spacemovi ... 258904996/

Eruptive Prominence
North Eastern Limb
Aug 15, 2016 16:55 to 19:00 UT

Daystar QUARK (chromosphere), Omegon 104/650 ED
Baader Scopos 66/400 ED + QHY5LII

© Sebastian Voltmer, Germany

Copyright: Sebastian Voltmer
http://www.astrofilm.com

Startrail image of the comet Hale-Bopp from April 3, 1997 passing behind the Weisshorn summit (4,505 m) near Zermatt. 15 min exposure on Kodak EPP 100 using a 50 mm f/1.7 lens @ f/3. Taken from Gornergrat (3,150 m), Switzerland.

Copyright: Sebastian Voltmer
http://www.astrofilm.com
First shot:
Hale-Bopp on April 3, 1997. The blue ione tail crosses the double star cluster h & chi im Perseus and reaches the Heart- and Soul Nebula. 20 min exposure on Kodak EPP 100 (hyp.) with a 50mm lens. Taken from Gornergrat (3,150 m), Switzerland.

Second shot:
Coma and streamer of Hale-Bopp. 10 min exposure using a C8 telescope @ 1230 mm f/6.3 on Kodak EPP 100 (hyp.)

Third shot:
The False Nucleus of Hale-Bopp on April 3, 1997. Eyepiece projection through a C8 telescope. Taken from Gornergrat (3,150 m), Switzerland

on vimeo:
https://vimeo.com/209722620

Cheers,
Sebastian

Barnard's Loop, M78 & LDN 1622
]www.mauricetoet.nl
Copyright: Maurice Toet

The constellation of Orion is full op splendour. Here we can see a river of ionised hydrogen atoms streaming from the top left to the lower right corner of the image. It is part of Barnard's Loop. In this composition, Barnard's Loop crosses between M78 (in the lower left) and LDN 1622, also know as the "Boogie Man Nebula".
https://photos.smugmug.com/Deep-sky/i-q ... 225-X3.jpg
http://www.mauricetoet.nl/Deep-sky/i-qFS6F3J/A

M88. Copyright KG Observatory.

Charles Messier described the 88th entry in his 18th century catalog of Nebulae and Star Clusters as a spiral nebula without stars. Of course the gorgeous M88 is now understood to be a galaxy full of stars, gas, and dust, not unlike our own Milky Way. In fact, M88 is one of the brightest galaxies in the Virgo Galaxy Cluster some 50 million light-years away. The arms are lined with young blue star clusters, pink star-forming regions, and obscuring dust lanes extending from a yellowish core dominated by an older population of stars. Spiral galaxy M88 spans over 100,000 light-years.

Imaging telescope or lens: Celestron 8" EdgeHD
Imaging camera: QSI 660 WSG
Mount: Losmandy G-11
Focal reducer: Celestron 0.7X
Software: PixInsight 1.8, PHD Guiding 2, Neat Image V7, Sequence Generator Pro, Maxim DL6, Adobe Photoshop CC 2014, Astronomy Tools Actions Set V1.6
Filters: Astrodon 1.25" R, Astrodon 1.25" B, Astrodon 1.25" G, Astrodon 1.25" L
Accessories: Innovations Foresight ONAG SC, Optec FocusLock, Starizona MicroTouch Autofocuser
Resolution: 1457x1277
Dates: March 9, 2017, March 15, 2017, March 17, 2017, March 23, 2017
Frames:
Astrodon 1.25" B: 75x120" -20C bin 1x1
Astrodon 1.25" G: 54x120" -20C bin 1x1
Astrodon 1.25" L: 82x120" -20C bin 1x1
Astrodon 1.25" R: 64x120" -20C bin 1x1
Integration: 9.2 hours
Darks: ~20
Flats: ~80
Flat darks: ~80
Bias: ~20
Mean SQM: 19.75
Pixel scale: 0.642 arcsec/pixel
Locations: Home, Rancho Santa Fe, California, United States

Venus at Inferior Conjunction
Well almost: 1 hr 19 min after, due to clouds

Copyright: Michael J. Hayford Takahashi TOA-150 with Televue 2x barlow working at 3.3x.
Canon 80D video, 3.1x digital zoom
Best 100 frames of 3700. Autostakkert 2, PixInsight
Imaged from Monrovia, California.

Mike

Something fell from the sky Cosmic ray?
22 March 2017 20:35 UTC, Estonia, Harjumaa, Türisalu


Moving gif http://i.imgur.com/vIwOTSI.gif

M3 Cluster
Credits: Jaspal Chadha
Flickr link https://flic.kr/p/T5CNVF
Location: London UK

Moon and Jupiter and its moons

Credits: Adrien Mauduit

Powerfull aurora borealis display in Denmark

Credits: Adrien Mauduit

We have been waiting over 4 months to see a display like that! And the wait is finally over, it's not so easy to be at the bottom of the hill in the sun's cycle. The NOAA promised a G1 storm watch for last night, and we got a good show from 8:00pm til 10:00pm but Lady aurora was hardly visible through the fast moving storm cells and showers!! Then around 11:00pm it snowed for an hour, so I went back home and I thought my night was over. As I look back at the magnetometer before going to bed, it's going crazy again and the rain had let up, clearing up! I hurried back to the point I was shooting at and got in just in time to capture these magnificent green and pink pillars (G2 storm)! The marvelous show lasted only minutes, but it was well worth going back!
Sony a7r2 + Sony 28mm FE f/2.0, 14'', f/2, ISO 3200

Earth, water and Sky

Credits: Adrien Mauduit

Rising milky way core over the still Baltic, reflecting the firmament, with a hint of aurora towards the North.
Ordrupnæs, Denmark. March 24th 2017

Milky way core reflecting onto the still Baltic

Credits: Adrien Mauduit

It is really to get a clean shot of the milky way in Denmark, as the main island is constantly battered by sea mist, salty winds and haze. Two nights ago was the perfect night to get the perfect rare shot at the rising milky way core over the silent and still waters of the Baltic sea, mirroring our galaxy

NGC 2146 is a barred spiral galaxy by Paul C. Swift, on Flickr

After a very rainy winter in Lofoten, I am heading for one month to my home country, Romania.

Last night, while flying from Bodø to Oslo I was expecting to see some Aurora activity, given the forecast. So, the moment we took off, my eyes got stuck to the window. For about 3/4 of the flight, beautiful Northern Lights danced on both sides of the plane. Big thank you to the crew of SAS​ flight SK4127 for turning off the cabin lights. Really beautiful show.
Alex Conu
http://www.astrographist.com

Copyright: Sebastian Voltmer
http://www.astrofilm.com
Comet Hale-Bopp on April 4, 1997 next to the Weisshorn summit (4,505 m) near Zermatt. 15 sec exposure on Kodak Ektacolor Pro Gold 400 using a 50 mm f/1.7 lens. Taken from Gornergrat (3,130 m), Switzerland.

Flickr link: https://flic.kr/p/SUS5YY

Solar storm under the Danish milky way

Credits: Adrien Mauduit

The on-going solar storm was bright and powerful enough to be seen from Denmark, where it put on a magical show before the clouds rolled in on March 27th 2017. The picture is taken on Høve strand in Denmark over the calm shores of the Baltic sea, reflecting the aurorae. The nice arc of the winter milky way (orion, California nebula, Rosette nebula) is disappearing towards the north to give its place to the spring milky way that will appear above the south-eastern horizon hours later.