Submissions: 2015 April

Sandgirl · Post by **Sandgirl** » Tue Mar 31, 2015 10:06 pm

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asteroide06 · Post by **asteroide06** » Wed Apr 01, 2015 5:18 am

Galaxy NGC 4565
http://asteroide06.fr
Image taken using the Télescope Amateur de Calern (TAC), 16" newtonian, f/5, at the Observatoire de la Côte d'Azur, plateau de Calern, France. Exposure time : 1h.
Copyright: Jean-Marc Mari

: Click to view full size image

Steed · Post by **Steed** » Wed Apr 01, 2015 5:25 am

Carnival of Fireflies
Copyright: Yu Jun & http://NightChina.net/

The Night of Lake Natron belongs to the stars. Without any artificial light disturbing the pure sky, one can easily see the Southern Milky Way, as well as sparkling starlights scattered in it, such as the most distinctive constellation Southern Cross and our nearest stellar neighbours Alpha Centauri. The Night of Lake Natron belongs to the firefly too. These glowing elves were flying up and down among the lush grass on both sides of a ravine stream, like a flowing "Firefly Way", as if to contest with the Milky Way. On the quiet starry night, the fireflies held a grand carnival.

For larger picture, please check my flickr:https://www.flickr.com/photos/steedjoy/16963866671/

IanP · Post by **IanP** » Wed Apr 01, 2015 10:58 am

NGC3324 (Mistral Nebula) + NGC3293 in NB

spacenoob · Post by **spacenoob** » Wed Apr 01, 2015 12:21 pm

Thackeray's Globules
https://flic.kr/p/rU17uB
Captured during March and April, 2015 using a 12" telescope from a suburban backyard in Australia (Canberra).
This is a Tri-colour Narrow-band composition using Hydrogen-alpha, Sulphur II, and Oxygen III (Ha(SII)/OIII(Ha)/OIII) 450:630:390, all subs bin 1x1 @ 0.44" sampling, 24.5hours total.
Copyright: Chris Marklew

: Click to view full size image

Bob Andersson · Post by **Bob Andersson** » Wed Apr 01, 2015 12:39 pm

Hi,

This is data from the wonderful HST Legacy Archive of M82 (link) so I hope it's OK to submit my interpretation:

: Click to view full size image

M82 - HST data

A 1600x1600 pixel version can be found here.

I particularly wanted to highlight the amazing structure in the Ha emission so I used a portion of the green signal as a continuum to subtract from the Ha. Of course subtracting in this way can lead to noise issues and care has to be taken to avoid negative values but I hope the result above justifies the procedure.

Bob.

rwittich_de · Post by **rwittich_de** » Wed Apr 01, 2015 1:21 pm

IRIS Nebula
NGC7023 by Reinhold Wittich, http://www.wittich.com

: Click to view full size image

PepeChambo · Post by **PepeChambo** » Wed Apr 01, 2015 3:18 pm

Object/Date:
N Sgr 2015 no.2 @ 2015-03-22

Tech data:
Takahashi FSQ-106ED refractor & SBIG STL-1100M camera (L:2×120 Bin1 + RGB:1x60 Bin2)

Description:
Nova Sgr 2015 no.2 in the middle of this wide field image covering 2.5 square degrees located in central area of "Sagittarius Teapot". A star between near half a million stars visible in this photo, taken on March 22, 2015 just as the Nova reached its maximum brightness at 4.3 magnitude.

Location:
Remotely from Siding Spring (Australia)

Post and image link:
http://cometografia.es/nova-sgr-2015-2/

Author:
José J. Chambó

tango33 · Post by **tango33** » Wed Apr 01, 2015 7:20 pm

A rarely imaged SNR

A larger view:
http://www.pbase.com/tango33/image/159400602
http://www.pbase.com/tango33/image/159400603
http://www.pbase.com/tango33/image/159400604

Thanks for looking!

Kfir Simon

Starless:

Side by side:

jerry10137 · Post by **jerry10137** » Wed Apr 01, 2015 9:51 pm

Orion/Horsehead HaRGB
Scope: AT65EDQ 420mm f6.5
Mount: Takahashi NJP
Guiding: Orion SSAG Magnificient Mini Autoguider
Camera: Hutech Modified Canon 6D @ 1600ISO
Capture: Backyard EOS Premium
Exposure: 38 exposures 10 minutes ea. HDR Combine on M42 Using Multiple Exposure Lengths H-Alpha
Exposure: 19 exposures 10 minutes ea. HDR Combine on M42 Using Multiple Exposure Lengths Color
Processing: PixInsight
Imager - Jerry Gardner
www.theconstellationranch.com

FULL RES
http://www.theconstellationranch.com/M42_IC434_2.jpg

mexhunter · Post by **mexhunter** » Wed Apr 01, 2015 11:19 pm

Volcán de Colima.
Copyright: César Cantú

: Click to view full size image

http://www.astrophoto.com.mx/picture.ph ... category/9
http://www.astrophoto.com.mx/picture.ph ... category/9

Ajay Narayanan · Post by **Ajay Narayanan** » Thu Apr 02, 2015 12:54 am

NGC 2359, Thor's Helmet

Data for this image was taken with two 1m telescopes (1m-04 and 1m-05) at CTIO (Cerro Tololo, Chile) operated by the Las Cumbres Observatory Global Telescope (LCOGT) Network. This is a broadband image using R, V and B filter data for RGB along with some W band data in the luminance.

Larger version and more image details here.

Ajay Narayanan

Paul Haese · Post by **Paul Haese** » Thu Apr 02, 2015 12:59 am

The Keyhole, The Homunculus, the Fickle Finger and the Mystic Mountain.

It's been a long time goal to capture all these features in the one image. The high dynamic range of the Homunculus and the rest of the field means short sub exposures have to be captured and combined with long sub exposures to show the completed image.

Copyright: Paul Haese

Click here for large resolution image.

mexhunter · Post by **mexhunter** » Thu Apr 02, 2015 1:22 pm

Scorpion in the summer sky in Sahuaro National Park.
Copyright: César Cantú
From June 18, 2014.

: Click to view full size image

http://www.astrophoto.com.mx/picture.ph ... category/9

Sergio · Post by **Sergio** » Thu Apr 02, 2015 2:47 pm

Very nice César
Southern greetings!!

astrofotografen.se · Post by **astrofotografen.se** » Thu Apr 02, 2015 4:13 pm

Sun and moon halo
http://www.astrofotografen.se
Copyright: Göran Strand

: Click to view full size image

Yesterday we had excellent halo conditions here over Östersund, Sweden. During the day I took a photo of the 22° solar halo. And later that night, 10 hours later, when the Moon was in the same position in the sky, I took another shot from the same location, showing a 22° Moon halo. Here are the two images merged together and I also included the two separate shots. The sun halo was shot on April 1st at 10:21 (UTC standard time) and the Moon halo 10 hours later at 20:30 (UTC standard time).

philto · Post by **philto** » Thu Apr 02, 2015 6:09 pm

Today a big prominence.
204 mm refractor.

: Click to view full size image

image © Philippe TOSI
website http://www.photoastro.com/

stringdom42 · Post by **stringdom42** » Thu Apr 02, 2015 7:26 pm

Cassini's Approach to Iapetus: March 26 - April 1, 2015
https://www.flickr.com/photos/valeriekl ... 389341354/
Copyright: NASA / JPL / SSI / Val Klavans

: Click to view full size image

Sandgirl · Post by **Sandgirl** » Thu Apr 02, 2015 8:26 pm

Aurora Borealis above Atigun Pass
Copyrights: Fred Wasmer

NGC7497 & IFN
Copyrights: A & W Observatory
Larger size: http://www.astrobin.com/169130/0/

Mizar and Alcor
Copyrights: Thomas Pickett

The Big Dipper
Copyrights: Thomas Pickett

Omega Centauri
Copyrights: Thomas Pickett

Enjoying Venus corona above the Giant´s Causeway – Northen Ireland
Copyrights: Miguel Claro

Astronomers Watch Unfolding Saga of Massive Star Formation
Credit: Bill Saxton, NRAO/AUI/NSF
An article: https://public.nrao.edu/news/pressrelea ... -formation

Solar Prominence display Panorama 1st of April 2015
Copyrights: Guillermo J. A. Barrancos

M42
Copyrights: Samuel Lising

Saturn 01/04
Copyrights: Christopher Go

Eta Carinae - Jewel of the Southern Sky
Copyrights: John Gleason

Aurora and a Geminid meteor over the Kirkjufell mountain
Copyrights: Kevin Gorton

Sandgirl · Post by **Sandgirl** » Thu Apr 02, 2015 8:50 pm

M101
Copyrights: Philippe Durville

Leo triplet
Copyrights: Philippe Durville

M81 & M82
Copyrights: Philippe Durville

Ganymedes on March 16th 2015
Copyrights: Leo Aerts

Extremely low rainbow behind Frankfurt Skyline
Copyrights: Stephan Heinsius

M 81 (Messier 81, NGC 3031 or Bode's Galaxy) with Holmberg IX Dwarf Galaxy and IFN (Integrated
Flux Nebulae)
Copyrights: Eric Coles

Sun and Moon halos
Copyrights: Göran Strand

Nova Sagittarius 2015 no 2 and the Galactic bulge
Copyrights: Yuri Beletsky

Suzaku Studies Supernova 'Crime Scene,' Shows a Single White Dwarf to Blame
Image Credit: NASA/Suzaku and NASA/CXC, DSS, and NASA/JPL-Caltech
An article: http://www.nasa.gov/content/goddard/suz ... -to-blame/

Hubble finds ghosts of quasars past
Image credits: NASA/ESA
An article: http://www.spacetelescope.org/news/heic1507/

markg · Post by **markg** » Thu Apr 02, 2015 10:13 pm

Beyond the Clouds
http://theartofnight.com
Copyright: Mark Gee

Beyond The Clouds by The Art of Night, on Flickr

17 March 2015 - Intense aurora activity in the southern hemisphere put on an amazing display tonight, and this was seen in many places where the aurora isn't usually visible. I raced out to the south coast of Wellington, New Zealand to attempt to capture some of the action. There was a strong cold southerly wind blowing, and the aurora and night sky were often covered by clouds. But eventually, there was a break in the weather, and I was able to capture this image of the Aurora Australis beyond the clouds.

markg · Post by **markg** » Thu Apr 02, 2015 10:19 pm

Tekapo Dreaming
http://theartofnight.com
Copyright: Mark Gee

Tekapo Dreaming by The Art of Night, on Flickr

Lake Tekapo is located on the South Island of New Zealand, and is part of the Aoraki Mackenzie Dark Sky Reserve. Thousands of tourists visit this area every year, and one of the big attractions is The Church of the Good Shepard. This stone built church is located right of the foreshore of Lake Tekapo, and is a photographers dream with stunning views of the mountains to the north, and an amazing location to photograph the Milky Way rising over the church at night. It is the most photographed building in New Zealand, and even at 2am in the morning, there can be dozens of photographers around the church jostling for positions attempting to get that postcard perfect shot. You can see a short time-lapse for this location here: http://vimeo.com/122880577

markg · Post by **markg** » Thu Apr 02, 2015 10:21 pm

Fly Me To The Moon
http://theartofnight.com
Copyright: Mark Gee

Fly Me to the Moon by The Art of Night, on Flickr

Here’s a bit of a novelty shot of a Air New Zealand plane - flight NZ0478, departing Wellington bound for Auckland in New Zealand crossing the crescent moon the other night. I was hoping to snare the shot earlier in the night when the light was better, but this was the only opportunity I got - I’m certainly happy I had a chance of the shot at least…

markg · Post by **markg** » Thu Apr 02, 2015 10:23 pm

Wanui Nights
http://theartofnight.com
Copyright: Mark Gee

Wanui Nights by The Art of Night, on Flickr

The Wainuamata coast near Wellington, New Zealand is rugged and exposed, but also very picturesque, and a location I've been wanting to photograph at night for a while now. I finally got the perfect night to do so, and hiked the 3.5km with my camera gear out to Baring Head, where I set up overlooking the beach and the Wainuiomata River. The Milky Way was stunning this night as it rose towards the east, and the sky was tinted green with air glow as the distant galaxies of the Malleganic Clouds hovered above. This image is a panorama made up of 24 images stitched together, and was shot on a Epic Gigapan Pro panoramic head. Each image had an exposure time of 25 seconds at f/2.8 ISO 6400, and was shot on a Canon 6d with a 24mm focal length.

markg · Post by **markg** » Thu Apr 02, 2015 10:26 pm

Arc Of Light
http://theartofnight.com
Copyright: Mark Gee

Arc Of Light by The Art of Night, on Flickr

Looks like the night sky has a grumpy face with the Magellanic Clouds as the eyes and the Aurora as the mouth!

We had just finished a workshop at Lake Tekapo, New Zealand recently, when all of the sudden this stunning arc of light formed low to the horizon to the south. It was the Aurora Australis making an appearance, but somewhat unique, as the arc formation wasn't really seen that much in the southern hemisphere. I knew I had to get a photo of it, so jumped in my car to head to a location near Lake Alexandrina where we had been shooting earlier in the night. The location was perfect for the photo I had in mind. The Aurora was arcing behind the big old tree there, and the Magellanic Clouds were also stunning in the night sky. I composed the scene in front of me, and took the shot - this was certainly one night of astrophotography to remember...

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